Why you shouldn’t warm up you car engine in the morning
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- 게시일 2021. 07. 23.
- Engine oil circulates in car even when cold
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"Warming up your car" isn't "waiting for oil to reach the valvetrain" its to allow the fluids and different metals to reach operating temp, oils are most efficient at their rated operating temperature. Different metals expand and contract at different rates at different temperatures, therefore mechanical clearances are nominal at operating temp. An extreme example of this is, formula 1 engines have such tight tolerances that they are effectively seized at normal ambient temperature, they need to be preheated before they can even rotate. The same thing applies in your daily driver, but at a much less critical tolerance.
I started using bacon grease in my crankcase. Changed my life…
Came here to say this, glad I didn't have to type it all lol 👍
@@tonyanthony7697 same here
@@68blackhawk22 tell me all you dumb fucks are older than 50
Different oils also need to heat up to different temps, for example synthetic 0w-16 will run like water compared to a 5w-30 or 10w-20. Thats why its so important to use the right viscosity even in an every day car. Your motor might not seize but if your oil is too runny or too thick it wont properly coat your engine and you can ruin bearings and such.
I’d pay a lot of money to never hear this song again.
If you've got fifty bucks and travel expenses per diem I've got Q-tips...
Lol! Right!!!!
You can pay me $2,000 and I will rupture your ear drums
Me too me too. Lets protest lmao
Yes where’s the go fund me page to kill this song!?!?
I've talked with too many professionals that agree it's not about the oil coverage, it's a thermal expansion issue. The engine needs to be at op temp for everything to run correctly. That's why you don't see people on a dyno start their car and instantly make a pull. A warm engine is a happy engine. If you are part of the majority that let your engine idle until the rpms drop, keep it up.
True. True.
Warm up is best for longevity. But is it necessary in summer?????
@@Karl.Car.tech.1 depends on your climate. Summer is different for people around the world. I usually wait until i can physically see the guage move, you're good to go. It can take anywhere from 1-5 minutes depending on your climate and how long its been since you last drove your vehicle.
I understand it's not always possible, if I'm running late for work then i wont warm it up as long or at all. But 2-3 minutes should be sufficient most of the time.
@@FOZ23 you must drive a car more than 10 years old. Huh?
@@FOZ23 Most newer car only need about 1 minute. 0/20 synthetic helps a lot in newer cars. Huh?
It's not the presence of oil that's the problem. It's the temperature. Oil thickens as it gets colder, and especially if you're running 15w40 in a diesel or something, you run that engine too hard too early, a rod bearing's just asking to be scuffed up
Ty
Bs slightly colder oil won’t do a thing for crying out loud these diesels are known to be able to run off of used motor oil or vegetable oil 😂
@@johngomez2289 a cold diesel definitely should be warmed up if you've ever drove a diesel in the morning you would know
Yes I just know from experience. Had a car just stop after not warming up once in the winter. Never again always after that
Smh even mechanic are idiot sometimes 🤣🤣🤣
Not about the oil getting up there, it’s about the fact that things expand when they heat up, which means when the engine is cold, it is literally smaller and the internal tolerances are larger than spec, so letting the car warm up allows the engine to “fit together” better before lots of stress is put into the engine.
I agree Imagine doing what he did but outside temps are -45 and you drive off. Your gas will be water 😆
Electronic choke causes to many rpms on the transmission....
Still makes no sense, that's an idea we keep dragging from the carburetor era
To warm it up...just drive it. Not hard though.
Well put! My uncle Dick, Chief Engineer on the Red Star tugboat Saratoga, told me the same thing when I was a wee nipper! Well, a teenager, anyway, with my first car.
People who know metallurgy, let their cars warm up. It's not about the oil, it's about the expansion of parts before putting a load on it.
First correct comment here👏👏👏👏
This is 100% correct
This guy gets it dumb people thinking it's oil
110% with a built motor i wait 15m allowing the pistons to expand, before babying it
This is common knowledge to anyone who's had a metallurgy course or two, but how many mechanics and techs are actually taught about that unless they come from another field first? Basically 0. I've never met one.
i just wait until my rpms drop and level out, especially in a 32°F morning. plus it gives me time to find a good playlist or podcast before driving off.
Yup.
That’s really all you need. Once it idles down to normal idle, it’s Ready to go. This also helps the transmission because the motor isn’t running fast when it goes to shift. I know my truck will jerk if I don’t let it idle down.
Same here. Let the RPMs drop down - that means the engine is working optimally.
And this is what separates the mechanics from us technicians in the world.
True. True.
What does that mean
@@maspunchnath7487 mechanics "work on them" technicians not only work on them but understand them
@@907GearHead agreed. How long do you think is necessary to warm up in summer???
@Karl.Car.Tech.1 that largely depends where your at! It's relative to your environment. Someone in Arizona mid summer is different to someone In Alaska mid summer. The hottest i get in the summer is around 75 to 80 degrees. I let my vehicle run for atleast 5-8 minutes that time of year. Winter time when it's 10 degrees I'll let it run 20 minutes!
It’s not about the oil Homie. It’s about operating temperature.
@@Karl.Car.tech.1 Sorry Karl but we gonna have to let you go. Scotty is our new go to guy.
Si not just about the oil
it's also about oil however it instantly gets oil but it takes a few minutes to fill up with enough oil and cover everything properly
If you're worried about operating temperature, you're engine will spend less time being cold if you drive it easy at first vs waiting 5 minutes idling
@@mattrob15 U are right but there is those idiots that don't care. Best just to tell everyone to wait 5 min.
Warming up in terms of heat cycles and different expansion rates between the block and head is different than waiting 30 sec for oil to reach your cam bearings
You’re fine to drive as long as you don’t rev it hardcore for a mile or so
Also transmission fluid needs to warm up too and that takes longer
@@thinshadow551 No @Thin Shadow, or else manual transmissions would be toast. If you do not know manual transmissions don't spin when in Neutral.
@@dragonfire1554 I hope you’re joking. Also I have a manual transmission car and have done both starting then going and waiting and I gotta say, waiting 30 seconds sure makes the drive more enjoyable and less ‘jerky’
@@dragonfire1554 everything there spins in neutral but nothing is connected to the output shaft by the sleeve
Also its good to let your transmission oil warm up if its n old tranni to prevent issues or if its alrdy slipping
True. True.
True brah 👍
They don’t call it “warming up” for no reason. It’s about heat, not oil circulation.
True. True.
I’ll usually wait a little bit, just until the idle comes back down and then drive gently until it’s up to temp.
Yup same here. Takes less than a minute for my car to drop the revs below 1000rpm.
Also it exactly matches the time it takes for my dashcam to start up and start recording.
This is the way
Exactly.
It is actually worse for the engine to let it idle up to operating temp, rather than driving it gently while cold. Cold starts have lower cylinder temperatures and rich fuel ratios. This causes unburned fuel to wash down the cylinders and dilute the oil with fuel. The idea is to warm it quickly, while keeping stresses low. Driving easily, after waiting 10-30 seconds is ideal for most vehicles. engines running 15w-40 or heavier should wait about 1 minute. Modern engines can handle fast heat cycling much better than older ones. They don't handle cold start idling as well though, due to direct injection and tighter emissions regulations.
@@scarletboa I’m talking about a 45 to 60 second wait before I drive. Not a full warm up. I’d be waiting all day, my car had a big lump of engine to heat up.
The oil isn’t why you wait, you wait for there to progressively and slowly add heat to all the metals because different metals expand at different rates, also gaskets make a more effective seal with warmth
Oil temperature is also an important factor for engine operation because oil acts very different at different temperatures. Cold oil isn't very fluid meaning, oil isn't traveling to the parts it needs to. Warm oil(within the operating temperature) is fluid yet thick enough to stick to the surfaces of the components allowing for less friction between parts(lubrication). Overheated Oil leads to early break down of the oil structure making it less like a milkshake and more like a water(thin and not very sticky).
Exactly right
Exaclty! Piston to cylinder tolerances are tight when cold. That’s why you don’t go redline your car right after starting it.
Gaskets was always why I did it and to warm my truck up hahaha. Gaskets last longer slowing them in
I’m glad u wrote it so nicely cuz I couldn’t say it any better …. I usually wait about 2-3 mins till it idles down to at least 1k rpms tht automatic choke will have u burning more gas if u start up n pull right off
Old GMs “gotta let the pistons warm so they stop slapping”
2.8, 3.1, 3.4 and 3.8 for sure. Good engines tho, do the intake gaskets at some point and run em
nice going from warm house to warm car
True. True.
It’s not just about oil, but temperature as well. Letting it settle after starting (15 secs) is usually more than enough. Modern cars lower their rpms after a short while.
Especially with turbocharged engines
Incredibly accurate.
High idle at start is to reduce emissions. Nothing to do with protecting the engine. Also modern oils have such a low viscosity when cold that temperature isn’t a big deal. But yes 15 seconds is enough.
Oil circulation is one thing. Optimum temperature to bind to moving parts. Warm up with no load.
School em! Cold coolant and cold oil can prematurely wear the engine down. I bet all his cars have nasty blowby!
Anyone who uses the ""oh no"" song, loses all credibility to educate anyone...
I'm waiting for that song to be banned from the internet
@@sasrunner6812 it's so annoying
😂😂😂👍
I'm so sick of that chipmunk stupid song ,🤢🤮
I’m so fckng sick of that song. I’m about to talk to some lawyers to see if I can make it go away 😡
Having a turbo makes a difference also. Always warmup to operating temperature. Especially if you live in the cold. Plus its nice to climb into a warm car lol.
Yeah. Diesel and turbo must warm up. Right????
My vehicle has very very bad pickup(torque) in the morning, but just after 2 minutes of engine running. It is ready to go. This happens a lot in winters.
Interesting.
Bet your car is more than 10 years old. Huh.
@@Karl.Car.tech.1 august 2016
Notebandi se pehle li thi
It’s not about the oil or operating temp. It’s about being able to see out the freakin windshield.
And being able to sit inside and not turn into an icicle
You may also notice that the engine sounds better after you bring it up to operating temperature. (When the temperature gage needle is right between C and H. Even slightly lower is ok)
Fax
@@demoman1282 fax fax fax I be freezing especially if you waking up around 4-5
I always have a 4" x 4" spot to see the road.
Dude, I live in Minnesota, I'm warming that sumbich up for 30 minutes.
Lol 😂 straight up I live in Colorado
I'm in Minnesota too and always do 30 minutes (for the honda, the truck only needs 5)
Haha! I’m headed to Minnesota! It’s very cold up there. This guy is tripping lol
Im crying 🤣
I like my sammiches cold
You do it to let the oil get to operating temp so it’s not too viscous. Especially on forced induction applications like turbocharged engines. A common problem I’d see from people not doing this was the oil return gasket on turbo chargers leaking from the oil not being at operating temp when hitting full boost. That’s why you can run different oils in some cars when the weather is warmer cause the higher temperatures might make the lower viscosity oil too runny and it doesn’t lubricate properly
Great advice/answer.
Outside temperatures is a huge factor. Right.
I hope folks use common sense. Huh??
I just let it on for around 2 mins, and drive it gently till it reaches operating temp.. gotta make sure the engine oil gets to its thickness, the parts to expand, and all sensors at their temp before I floor it..
Good answer
When you live somewhere where in the winter, your car looks like a big iced cup cake in the morning, then yes, I’ll happily let my car warm up for a bit😊
Just part of life when its below zero for a month or more. You need a warm car to clear the windows of ice and frost.
One of my cars I even cover half the radiator for the small trip to work. The wind chill on frosty morning is a bit crazy
@@jonathanwright5550 The ‘ole cardboard infront of the radiator trick. Its how we survive up in Northern Canada
My diesels- plug them in- boom! Light right off at 20 degrees and the heater works almost instantly! And does very little wear inside the engine! Also oil is 100+ degrees and flows like water up to them rockers!
@@darrenrich3492 been trying to find a new zealand seller to buy direct off is hard. I'd love a preheater
He’s the mechanic people mention when they say, they know a guy who does it for cheaper
He's the mechanic he should know there is a warm up process to every vehicle, when you start the vehicle, the rpm is higher than normal to get the car to warm up then settles down after a minute or two. You can hear the car he starts is at high idle, if the video lasted another minute you would hear the rpm lower letting you know the motor is ready for the abuse of your heavy right foot.
😂😂😂
OOOOOOOOOOH SNAP 🤣🤣🤣
😂😂😂😂
@@Mayday_zj the reason it does that it’s because it’s heating up the oxygen sensor to improve emissions, not only that’s but it also helps the transmission when the oil expands it helps the gears shift properly
I let it idle for 5-10 minutes to let the cabin heat up in the winter 🤣 gotta love Canadian weather
Interesting. But they say Canada west coast is like California. Right.
@@Karl.Car.tech.1 in the summer yes, in the winter its the opposite
That’s an interesting fact. Because everyone always just say Canada 🇨🇦 is so cold. Huh????
@@Karl.Car.tech.1 BC around Victoria is ok this time of year usually but this year they've got snow other than that Canada is pretty shitty during the winter
But Canada west coast is warm????
I wait 30 seconds now. Just to be safe. Especially when it's been sitting outside for over 12 hours and its below 40 degrees F. That wait also gives me time to make sure I didn't forget anything, check my dash for any errors, seatbelt, mirrors, and handbrake (because I use it)
Wow. That’s cold.
Are you in Alaska.
@Karl.Car.Tech.1 sadly, NYC. And it drops below 40 a lot. NYers are such shitty drivers that peeling off too quick might have u in an accident.
I’m guessing the dude doesn’t understand temperatures.
Yeah, Its so simple; when I start my bike it idles at 2000 - 2500 rpm but after a few minutes when it reaches its optimum operaring temperature it reverts back 2 its original 1000 - 1500 rpm idling...
@@rohanstormbanks7601 Yea man I always wait for my vehicle (regardless of type) to come out of high idle before moving.. Anyone with any sense does imo.. duh..
@@Danstaafl Absolutely... For me this has become second nature now... I hope the creator of this video understands this simple but important thing...🙂
What does it matter? As long as u dont fucking drag race first thing you do lol. I mean it makes no difference to the engine if you drive instantly normally or if you let it idle. This is like the first thing you learn when taking your license here in Sweden. I bet my 22 year old Volvos engine is better looking than most cars even though I've driven off straight away after cold start, even in -20 temperature
@Rohan Stormbanks that's how you warp ur engine. Ur creating too much heat in the head and not more evenly across the engine
This guy has clearly never lived in a cold city.....
Or owned a non fuel injected vehicle.
he owns an old Honda he knows everything there is about cars
Yeah brain dead info he giving out, don't let a pushrod warm up and see what happens
@@roshawn1111 I’m pretty sure my 2007 Yukon Denali’s 6.2 is a push rod. No issues, never warm up, just turn on and drive in -20C weather. I don’t push it hard but I drive it. You can warm up your car while driving it, just don’t push it.
@@roshawn1111 actually what he’s saying is true especially for newer cars maybe really REALLY old cars you’d wait but anyway remotely modern has no need to sit and wait unless you’re in an EXTREMELY cold environment.
most of the damage is caused by the first engine start especially in the morning and also when the car's engine has not been started for a long time.. corrosion of iron, piston, transmission and other engine components starts from the first engine start.. my father is a racing car engineer actually🙋🏻♀️
100% true.
Most damage is at startup.
Also remember warm up is best longevity. Right.
Also diesel turbo and race cars must warm up first?
I was laughing because my husband waits for the car to warm up 🤣
His car must be more than 10 years old huh?
Newer cars in summer don’t.
Tell me your only a lube tech without telling me you’re only a lube tech.
Underrated comment
What’s a torque wrench?
@@K7ZHK A wrench that torques😂😂😂
@@AnonYmous-hu7jo *proceeds to use a 1000 ft/pd impact wrench on your tire lugs*
Make it worst, he is a car wash lube tech!
It’s not just about the oil, it’s about the engine parts coming up to operating temperature
Yeah clearances change as temperature does as well
Newer vehicles don't have this problem it was mostly for older vehicles
Exactly lmaoo
THIS 💯
@@samuelruiz7377 to an extent you’re correct but they’re is proper operation temps that is make a difference over longevity even in modern blocks.
The quickest way to worm up your car is to drive it
Yep, Facts. I agree except all these Internet mechanics on here think differently.
It's all relative, depends how long the car has been sitting, engine being filmed had recently been started so the oil was in the top of the engine If the vehicle had been sitting for days, weeks or months it would take longer to reach the top, if you want your engine to last just let it run for 10 - 15 seconds before increasing RPMs and load
Aside from heat cycling and metallurgy, the heat from the exhaust also warms your catalytic converter and oxygen sensors to an appropriate level, providing better and more accurate readings and greater overall efficiency off the bat. And anyone who has done any serious types of modification, you need that O2 sensor to fully reflect a precise reading, so don’t hop in and two-step a rod through the block right away, give everything time to build heat.
So.. you're saying it's important to be a few % more efficient on your 15 min drive by idling for 30 min before hand?
@@nickel36 ...yes. lol not 30 minutes but be reasonable. Warm up at least 5 minutes before you go off revving to cut people off and beat the yellow
@@katjerouac of it's a stock car normally 1 minute is fine
@@AlexRib doesn’t matter if it’s stock u should wait until your temperature gauge is where it normally sits at then wait a couple more minutes after that until u start driving the car hard which is what he was trying to say cars with a turbo or supercharger should wait even longer
@@AlexRib but driving normally u don’t have to wait at all really if it’s summer and your car is stock and u drive normally than 5-10 seconds is long enough maybe even 2-3 seconds but winter u should wait a minute or two if it’s very cold
He’s the type of guy who would rev the engine cold
Fax
Idiots😂😂😂
Sure, cause warming it up is for idiots
@@rudyz193 stupid is
Hes the type of guy to not know how to change oil
It's cold as shit in Philly
I'm definitely warming my car up
🤣🤣
Oil on a cold day is like sucking honey through a straw
True. True.
But newer cars use 0/20 synthetic. Problem solved. Right????
When this Guy realizes the piston and the block are two different metals... Oh no...
The piston and the sleeve!
This dude the type to red line a car right after a cold start.
Wow. That’s not a good idea. Huh????
He will tell you, ‘whoever that doesn’t redline at a cold start are idiots!!!! ‘
👍
Wut? Red-lining a cold car is not the same as not waiting for the car to warm up. It's actually better not wait in modern cars, to get it out of the warm-up cycle quicker, warming up catalytic converter quicker, less emissions, and your car burns far more gas in the warm up cycle. That's just wasted gas if you're sitting there not moving, blowing out more pollutants.
You mean jet start, it's never good on any motor.
I don't do it for lubrication purposes. I live in Canada where the tips can reach -50 in the winter. These freezing temperatures can stiffen up seals, orings and gaskets. Letting your engine warm up prevents these seals from prematurely failing. Secondly in -50 temperatures oil is very thick and moves slow meaning it will be slower to reach the head where you are currently in a shop so the oil is at room temp and can flow normally.
Yes warming up your vehicle helps save your vehicle if you do it in the right circumstances stance. If the temperatures are warm there's no need to warm up your engine it's already warm lol
Wow. That’s really cold. Huh.
When it get to 42 we use seat warmers here in California.
First of all it is considered to be dry starts the moment you turn it key in the starter turns that engine there is a few seconds that you don’t see that has a dry rotation. If you want a laminate that you can use Lucas oil stabilizer, it coats. Everything in your engine with a thick golden oil works excellent so you don’t have to wait even for a few seconds but it is best to wait because your transmission also has a pump in a in a fluid needs to circulate. Don’t listen to everybody they don’t know everything.
True. True.
0/20 synthetic helps. Right?
@@Karl.Car.tech.1 I do apologize I don’t check this that much but I’m just finding out that KRplus has a message box. Please forgive me but I want to say that synthetic oil is water 0W 20 ain’t nothing but water down oil that they use for those floppy engines that they built now you know like those floppy fold on fat people that flops in the wind that’s what an engine is with 0W 20 so with that type of motor it’s best to use 5W 20. You won’t strain your oil pump but you all will last longer in your engine will live longer 0W 20 sucks ass that’s like drinking baby formula compared to Chardonnay.
True
First. Always use the manufacturer’s recommendation of oil type.
You "warm up" your car because:
1: your oil works better when warm.
2: it allows the block to warm up and expand before you put load on the engine.
3: most automatic transmissions still rotate even in park/neutral, allowing the movement of the transmission to warm up the fluid inside for better shifts.
4: warm up the block to decrease head gasket ware
5: the list goes on and on
False
@@tioswift3676 how tf would you know? Have you ever even worked on a vehicle?
@@diyguy2383 - Yes. It’s just all wrong.
@@tioswift3676 agreed with u. All false. Pointless. Its on the road car. Not F1. No need warm up.
@@rikisaputrasamsujir1296 citation required, plenty of car manuals still recommend a short warm up before driving and repeated hard acceleration on a cold motor will damage it eventually if it is a performance motor or not.
Also older cars should not be driven with the choke on etc.
It’s called Operating Temperature for a reason! That oil does not have the proper viscosity until the motor is at proper temperature which means your not getting proper lubrication.
If the car is modern, not so much anymore
@@world_reborn1990 so you're saying that modern car doesn't have operating temperature?
@@syachazriel alot has probably changed in the past 40 years. There's still ideal operating temperature but I would find it weird if they never improved on how oil is made and how engines can allow for more effective lubrication 🤷🏾♂️
Just read your damn car manual 😁
@@syachazriel operating temperature in modern cars is from -40 degrees up
@@Omav source: trust me bro
I let my shit warm up so the heat is ready by the time I get in the car.
True. True. The heater. Huh?
@@Karl.Car.tech.1 most cars use the "hot" coolant flowing through the engine to the heater core which is basically a radiator and blower fan inside the dash to heat the inside of the car.
Obviously electric cars and some newer cars use a standard electric heating coil setup like a hair dryer.
True. True. Except electric cars. Right???
@@Karl.Car.tech.1 yeah, electric cars use heating elements "resistive elements" and a fan, basically like a hair dryer, heat gun, or portable electric floor heater.
They do consume A LOT of power, but they heat up a car about 3x faster than coolant based heating systems.
@@RoasterOven yea. Like a electric ⚡️ house heater. I get it.
note.. Doesnt apply to newer fords. Cam shaft phaser fails prematurely. The simplest way to prevent the newly installed phaser from failing again is to prime the engine before starting on a cold start
Interesting
Huh?
You mean warm up first?
@@Karl.Car.tech.1 no.. Prime the engine.. As in build oil and fuel pressure. Just like you would in a diesel engine for fuel filters
Warming up an engine isn’t for oiling 🤣 it’s so the engine gets to operating temperature that way you have your mechanical parts fully expanded and allows for peak performance and less wear on the bearings
Actually the parts warm up faster under light load and therefore wear less than letting it slowy idle to temp also the trany doesn't get to operation temp and the efficiency of engine and catalytic converter and is decreased for a prolonged time so it is sady a (environment polluting) waste of fuel
@@TheLtVoss That👆👏
@@TheLtVoss if me idling my cars is polluting what's a packed drive thru doing, on every corner.
@@TheLtVoss you will fuck your shit up faster doing that🤦🏻♂️🤦🏻♂️🤦🏻♂️
@@Enrique-peralta idling it the most inefficient phase of the car. That is y we are seeing more cars having integrated idle monitor day turns the engine off when idle. If the car is cold it is a good idea to heat up to set the idle to it's normal operating temp. Nothing wrong with starting and going but u save a bit more gas not a lot but a bit. So heat up the engine for a bit or drive at a very light slow drive like in a school zone until it's at temp
When metals heat up they expand or get bigger, hence also allowing valve specs and everything else to come into spec and have the right gap has nothing to do with allowing oil to get to the top
😁👍👌
Not to mention when its cold, like MN winters are, the oil is thicker due to the cold. Letting the oil warm up and thin out before putting the engine under a load is not a bad idea
Was about to say the same thing
I like how he loved your comment calling him out for not understanding how running temp works.
Start it up, drive lightly until it’s warm then resume normal driving habit.
On our little MG Midget it's super important to warm the engine up or else you'll be popping and banging down the street lmao
True. True.
What’s the year??
Bet it has a carburetor. Huh. ??
What you're waiting for is the metal piston ring gap to close a little bit and it's ok to start and drive, just don't rag on it right away until it warms up. Same thing when it's hot. Don't go from drag racing straight to off. Let it idle for a few to cool the cylinders then turn it off to reduce chance of warping
True. True.
About 60 seconds??? Huh?
The whole purpose of warming up is having the oil warmed up at the right viscosity, metal expansion etc. Warming up in not too necessarily but driving it below 2-3k rpms till it fully warms up is crucial
And staying out of boost is a good idea.
My last vehicle had 187k miles lasted 16 years the engine was fine, sadly after 187k miles the tranny finally gave out. I never let it warm up. I just get in and go. To let your vehicle sit and idle for for more than a few seconds is just wasting fuel.
People also forget trans fluid coolant all need to be partly warmed before driving. It was so cold once when I started the car it was not happy it started really sluggish probably the battery but once started it was shooting out white smock for probably 10 minutes yes I sat in the car for 10 minutes and rpms stayed at 2000 for that long and I had the car plugged in overnight so I can’t believe there’s people that get in and go it makes me cringe. Plus even after 10 minutes when I started driving I could hear the transmission making a whining sound went away once it was fully warmed up so yea people need to learn patients
@@vanringo So I’d rather waste fuel then have my car break from extreme cold I bet your transmission would have lasted longer if you just let the fluid warm up a bit before driving
You can hop in and go after like 20seconds, but don't stomp on it no until it's warmed up or you'll toast it.(5+ vehicles well over 300k in buffalo NY will attest that)
I'd love to see the oil do that when it's below 10 degrees outside lmao
Or when its 15w40
In Montana when it’s -25 outside and your car/truck has ran in 5 days.
Well i wont be seeing that where im living nor would i wait for 5 minutes "lmao".
Get an engine heater if its that cold in your area...
It will do because of a thing called the oil pump.
45 - 60 seconds is a smart warm up, a few minutes in sub zero is okay, it is all about stresses and expansion, give it love.
True. True.
I hoping folks use common sense. Huh?
It's all about tolerances. Letting your engine warm up to expand all parts of the engine. Gaskets and parts are expanded so you are less likely to get oil leaks damaged gaskets and parts.
Interesting
Even on a new car????
It’s called “normal operating temperature” for a reason bud
Except cars would much rather be driven to warm up than to idle
@@shivamk7071 you spoke with the cars and they told you this huh? Ok car whisperer 😂
Just don’t red line it then it really doesn’t matter lmao funny
@@jstewart627 my turbo seems to lag the first 2 minutes if I don’t let it warm up v8 turbo diesel.
@@undrwrldsk8fred shivam is correct. You know nothing about cars.
Waiting that extra time in the morning is for bearing tolerance and oil temp, oil temp climbs very fast, the temperature of the piston, the cylinder wall and the bearings affects how large they are, materials expand when heated, engines are designed with tolerances at running temperature, some engines have piston slap or knock when cold cause tolerances have yet to get right, so they need to be warmed up, generally not waiting is fine, as long as the outside temp isn't too cold, but waiting will make your engine last longer
It won't. Without any load on the engine it will take quite a bit of time for the combustion chamber to reach a decent temperature. While that happens on a petrol car the computer will order a rich mixture. That extra petrol will condense on the cylinder walls and wash the thin oil film (since gas is a powerful solvent). You want to drive it slowly due to increased tolerances but you have to drive it so you get higher temperatures faster.
I have seen a lot of reputable engine builders completely disagree with what you say, not a chance in hell someone is designing an engine to have piston slap and wrong tolerances because/when the engine is cold. If you start your car up 4-6 times a day there will be too much wear over time. Hell some engine builders won’t even do a break in period, if it’s done correctly it doesn’t need one. All engines are fine when cold, tolerance wise, the main concern is lubrication and the temperature in the cylinder for the fuel mixture. Either way it will increase the life of the vehicle if you let it cycle first, same with any machinery.
Modern engines don't require it, they're designed to tolerate no warm up.
Hence why they last hundreds thousand miles without any warm ups.
@@Robert-cu9bm new engines are lucky to make it to 100k lmao. My 07 5.4 3v has made it over 300k. And my 84 4.9l has over a million miles sooooooo....
The only thing that will make an engine live longer is regular oil changes with good quality oil and good quality oil filters.
Old school 350 small block is where this comes from. When you get instructions for a new cam, it wants you to run between 15-20 minutes at 2500 rpm, because oil will not be forced to the cam under 1000 rpm...... supposedly
Wow. 15-20 minutes???
350 is a Chevy? Right?
New cars today use 0/20 synthetic. With EFI the ECU warms up quickly. Huh.
@@Karl.Car.tech.1 this is just on small block Chevys, and the only time it's really required is on initial cam and lifter break in. The cam bearing journals have pressurized oil to them, as well as pressurized oil on the sides of the lifter, but the lobe contact surface relies on oil being splash up from the crank case. Really it's super important on break in, but after that it no longer matters.
I think that myth comes from this procedure. People hear your supposed to let your car warm up the first time a freshly rebuilt engine starts. Then someone tells their friend, your supposed to let it warm up the first time it starts.
And that guy tells someone else to let your engine warm up every time it starts in the morning......so it is truly mis heard information
Great answer.
Warming up is good ...but some people exaggerate on the time ....just wait till the rpms settle down and then drive like a grandma for the next 5 or 10 minutes ... without abusing the car 😊
This is why there is a difference between a mechanic or engineer and a parts changer. Just because oil is present doesn’t mean it is optimally lubricating.
A mechanic is a parts changer, an engineer is a part designer.... and if tou listen closely to the video his only argument was that oil is at the top of the engine upon startup. Not how effective is the lubricant properties of the oil on start up!
@@plntycash he claims that warming up engine is unnecessary because of oil flow, which is heavily misinformed.
The point of warming up an engine is for the oil & metals to reach at least near operating temp.
In optimal operating temp, the metals in the engine have proper tolerances & correct oil viscosity.
Everyone in the comments is wrong. It’s about choosing the proper playlist before hitting the road.
This is accurate af
yu got that right 💀
False, its about finishing your doobie and tossing the roach so there's no possession charge.
This comment right here
Hay Yaya beotchees
Driving a car thats been parked all day is like going on a run seconds after waking up, you wont like it but it can be done. When you start a car, it will run cold (rich) meaning it will use more fuel in order to warm up, once it warms up or reaches operating temp, the O2 sensors let the engine know it’s warm and you get a more stable fuel economy.
Great point
First. Open loop. Then close loop after warm. Right.
In new cars you only need 50 seconds. Huh.
It’s for thermal expansion and another reason I leave it running for a bit is I drive a manual and I let the transmission warm up as well.
Oh. Ok.
I bet it must be more than 10 years old. Huh.
If you're so confident then redline you car as soon as your turn it on. Everyday.
Hmu in a month and let me know
I love this comment
I used to do this on a Kia spectra I bought for 700$ it somehow still runs to this day I sold it and see it driving on 90 I’m convinced it’s the only motor made by Kia that won’t blow itself
I know for a fact mini Coopers don't like that my boss revved a mini at start up and it jump time his like what was that 😂😂😂😂 and our tweeker manager revved a Porsche Cayenne at startup and that jumped timing . I'm telling y'all it can happen
I do that. Sitting at 250k
Right?! 😂😂😂
Obviously there’s going to be oil at the top instantly😂the reason for a warm up is so that your oil gets warm enough so that it has the right viscosity and you don’t ruin your main and rod bearings
It does have the right viscosity, hence why oil viscosity is say 15w-40 or 0w-30 and so on, cold and hot viscosity, also goinff by your theory youll still do damge during the warm up fase, the warm up of a car was for older cars, modern cars dont need a warm up you can start and go, just dont drive it like a race car
@@IKebabZz yes but older ones do. The video should specify that so they don’t give someone bad advice.
@@IKebabZz “don’t drive it like race car “ . Have you seen my mom back out of the driveway in the morning?
@@IKebabZz in my opinion new turbo engines are extra sensitive with a cold engine. there is much more stress on the material, and the quality of the choice of material has decreased
@@IKebabZz oil viscosity has a rating at a given temperature. Once warmed up to operating temp only then is it at the intended viscosity. Put oil in the fridge and see what the opposite does.
The reason is, to make sure all metal components are equal to running temperature before beating on the bearings, more important for cars of the past, still important for component longevity. The ductility of the metal is better at temperature.
"Operating temperature" is a thing, my guy. In the northern states, where it gets f*cking cold in the winter, 5 minutes warm-up time is so that we don't f*cking freeze to death on the way out of the driveway.
True. True. Agreed.
In winter it’s a must to warm up.
But in summer is 55 seconds enough????
Oil pressure isn't warming an engine up. The temperature is to expand components and change oil viscosity. The head and block don't react the same. Enjoy pushing out head gaskets and replacing bearings!!
I always start driving my cars in about 30 seconds or less after starting them, never had a bearing or head gasket issue. Just don't whoop on them until they're warmed up.
🤦♂️
Warming your car up means that the car runs richer for longer and the oil is degraded. Driving slowly and warming it up quicker is actually better than letting it idle
So whats the difference if i want to warm up my truck before i drive it?? Isnt it the same as driving it on limp mode till it warms up?? My house is second from the stop sign.. now if i drive it till it warms up i wouldnt be able to do my daily burn out at the stop sign with my 4:10 gears an 4l80 transmission now would i.... thanks for the info but when i decide to drive like grandma i'll hit y'all up
In Wisconsin we have cold winters this video obviously wasn't taken in winter that's when I warm my vehicle as oil gets much thicker
I used to live in an area where it regularly got to -40F in the winter... When we started our cars early and let them run for 10 minutes before going anywhere, it had nothing to do with oil, or metal expansion or anything else mechanically engine related.. It was simple to give the heater a little time to do its thing so we wouldn't freeze our asses off trying to get somewhere in the damn car. Lol
Just buy a tesla
@@TheDbkfreak good luck with that battery
@@TheDbkfreak temps mess with the battery bud
That's the only time we let our cars worm up😂. Although it's normal only 5/-1 c in the winter hear in it can't hurt to bad not to worm them up because my dad's 1999 chevy silverado has 420k miles on it and has never had 1 problem out of the motor. Although it could quite any day but it's no showing any sines it's about to go. It doesn't smoke it doesn't make any noks or bangs . U don't even hear the valves. It has a 5.3L v8 vortex
There are levels of cold people don’t understand. Lucky I’ve never seen below-38. I had a manual and had to let my transmission fluid heat up in the super cold like that. Car would die in neutral if I didn’t slowly let clutch out.
the tolerances are calculated of a specific tempurature. cold oil flows slower that leads to a lack of lubrication
True. True.
0/20 synthetic solves that issue. Right???
Don't wait on idle,just drive off calmly until engine is on operational temperature. Much better for engine because it warms up much quicker. Thermal expansion is a problem on high power situations so avoid high load and high rpm
True. True.
Hopefully folks use common sense and not floor a cold engine. Huh
Guy who's been a mechanic for 2 years in a dealer shop: "I know everything."
Edit: wow guys so many likes and I really couldn't give a shit
Couldn't have said it any better.... 👍👍
Sounds more like an apprentice to me lol
In fact, that’s precisely NOT the reason you warm up a motor.
Why does mechanics attract so many 2 month know it alls? 🤦🏻♂️
Not at all why you let a car idle before you go driving
Lmao
If you have ever owed a 5.7 hemi, we all know it needs a warm up. Otherwise Elon musk and my lifters are gonna have a meeting on the back side of Mars 😂😂
This comment made my day😂😂🤙
This man gets it 😂
Actually its extended idle/low rpms that kill these bad boys. Uncle Tonys Garage has a couple videos explaining this in detail.
@@c00l3zt yeah I've seen them and I agree with his opinion on idling hemis. You can actually bounce a 5.7 off the limiter endlessly and it'll be fine, they are just designed to let the bald eagles scream lol
My 16’ 1500 is at the shop getting new lifters and camshaft 😭😭 bad oil pump killed my Hemi
The pistons start oval when cold then expand to seal the cylinder when they reach operating temp. It's called thermal expansion. But I agree do what you like 👍
Interesting
But true.
Question. Is 50 seconds enough?
Engine is made of various metal that expand and contract very minimally but it effects the car if its doesnt come to operating temp before mashing on it. Usually just need to wait for the needle to come down to reg idle
True. True.
Most new cars have aluminum block, head and pistons.
Imagine living life being so sure of all the things you’re wrong about
🤣 Very true‼️ it’s hilarious to listen to idiots go on about something you already know more about 😀💯
@@rainmanj9978 in the same way you don't just start up a vehicle when cold and begin revving the heck out of it, driving it instantly still makes it heat-up quicker than if left to idle for at least 20-30 seconds.
We want "gradual" and "somewhat equal" heating when starting up a cold engine.
So ya...get that expansion equal 👌
@@rainmanj9978 Oil viscosity changes which impacts the lubrication film and tolerances on your engines components and the metal components in your engine expand and contract under different temperatures so you want to ensure your engine reaches operating temperature to ensure the correct tolerances are met before applying any load to prevent excessive wear and incorrect tolerances.
There is still a considerable difference between a 15°F morning and a 60-70° shop. But this is also why my 2018 Sierra takes oil that is thinner than water
@@rainmanj9978 if you ever run a turbo charged car people wait for it to warm up, oil is circulated in your turbo somehow idk, but if you ever own one warm it up til the needle on your gauge on the dash is up more the low. Then drive the car for a little before ripping on it. Then when you get home after ripping on it you let it idle in park and for it to cool down or the turbo gets fucked somehow I guess.
Call me old fashion, I warm my car up so I can feel my fingers during my morning commute.
Keep doing it
The only reason I warm up mine 😂sitting on that ice leather helll nahhh
Lucky I’m ona dirt bike😀
My 2001 Tahoe won’t shift if it is really cold in the morning until coolant temp reaches 185 (half of the operating temp. Also I feel bad when it’s still idling high then making it go into gear lmao😂
It’s not that kind of warming up 😭😂😂
It’s not only the expansion of metals, it’s the viscosity of the oil. Things perform better at operating temperature. Ice, for instance.
True. True.
Warming up is best for longevity. Agreed
But is it necessary in summer??????
Warming it up allows parts to normalize. Cold pistons aren't round. Also, when your oil cools down, it will absorb moisture in the crankcase. Warming it ups drives the moisture out. But to each their own.
True. True.
But is it necessary in summer????
The point is to let the metals expand for proper clearances, before beating on your engine, so that it doesn't wear out as fast, I start driving almost instantly, and just keep it under 2k-2500 RPMs, until it reaches operating temperature, then I go over 2500RPM
Yeah engines heat up pretty fast if just used moderately at first. My manual recommends it. "Do not warm up, drive at a moderate pace"
I let it hit operating temp before I take off mostly because my old accord with 300k is starting to be a bit tired and is kinda gutless below 3000 rpm and it won't shift into 2nd till about 3200 like I want to be nice to it but I can't stand driving that slow for that long
@@Fastcarsslowwmoney understandable. My old Subaru had to be warmed up otherwise it would blow up. My new whip just has different recommendations. Warming it up shouldn't nessisarily hurt anything at all either! My Ma's accord has to be warmed up too for the same reason as yours actually. High milage tired car. Accords must be good cars though owners hold on to them forever!
Exactly
@@CodyEwok they hold up really well and have great a/c and heat and are decently easy to work on I plan on finding a lower mileage engine and rebuild it and a trans
He’s the type of guy who asks for blinker fluid
😂😂😂😆😆😆😆😆😂😆😂💀💀💀💀😘😘😘😘😘😘😘😘 I love you
@@Jimbo956 the blinker fluid is just a joke
your a fool and brain washed and never had a motor apart or knows how it works
He probably thinks his gear stick will fall off regularly
@@angelitotaiko you’re the kinda guy who doesn’t replace their piston return springs.
Warming up your car allows for the oils viscosity to work at its best, and also allows your car to allow coolant through the passsages that cool it down
True. True.
0/20 synthetic helps. Right
Every 60seconds, a minute passes
True. True.
60 seconds should be enough. Huh.
What do you drive.
There is such a thing as proper operating temperature, materials expand when heated, engines are designed with this in mind, if the engine is cold and you just drive off then you're running with pistons that aren't at the proper clearance because they're cold, increasing wear.
Not all engines are created equal. Especially older ones.
Its a proven fact that the engine warms up faster under light load... you get to temp quicker and get to a fuel efficient state quicker.... thats the actual counter argument to waiting for wngine to warm up.... you actually do more wear and tear letting it idle and not get up to temp
Pistons are at their smallest size when cold, you have more blow by wich saturates your oil with water vapor and gasoline.
Drive off slowly after starting the engine so it gets into the operating temperature range the way the manufacturer intended, don't floor it
Gentle exelleration until the oil gauge is in the middle
Thank you dicks. You win.
Just wait till the idle starts to come down ~ 10-30seconds if it's really cold maybe a bit more and then gently drive until temp is where it should be
It isn’t just about oil it’s the components literally warming up.
Also cold oil has caused many engine failures in turbo vehicles in super cold conditions
Yeah but that happens with normal driving. Absolutely don't go redlining out of your garage but sedate driving does the job better than idling, and is far less damaging to the environment, and yourself. The person inside the car ends up breathing something like 70% of the emissions if their car is stationary.
@@chrisburn7178 crack the windows..or don't sit in the car until operational..
@@torreybrown5115 That makes no sense... so you're going to crack the windows to the outside... where the poisonous gases are coming from your own tailpipe? And my point really is, that if you drive sedately until it's warm, your car is operational from the moment you turn the key. Idling is proven to be bad for engines and it's fuel you could be using to move yourself.
Are you talking about idling in a garage? Because im not talking about that..That's plain idiotic..Im talking about outside in the open..
This music almost feels perfect for what the DLCs intent should be. A slow but progressively emotional flow bringing us through and to the end of a 10 year journey. Ready to embark on the next, as legends
I remember a guy that I used to work with would start his truck and as soon as he started it he put it in drive and would drive away, literally I can hear the starter motor still spinning when he would throw it in drive and drive away…… I asked him the next day, don’t you let it warm up? He said no, he does that all the time. A few weeks later his truck was in the shop due to transmissions problems…… after he got it back he let his truck warm up and I asked him what changed, he said the transmission pump got burned out but yet the transmission had plenty oil atf……..a lesson learned
In
Interesting.
Remember. Warm up is best for longevity.
Especially if your car is more than 10 years old.
Newer cars warm up less time. Right???
When it's-30 I'm warming my car up for 10 mins while I wait in the house
Ya when it’s this cold it changes the viscosity of the oil and your car is running on molasses pretty much
Yup
@@colek8620 or just to get the heater warm
10 min a bit too much but 5 ok
Where you live ??? 💀
Yes waiting in room temp is pretty pointless but in the winter it's a whole different story. Do a viscosity test on oil that's -30c and +20c
Facts
Especially in a Diesel engine and even more so in one that uses the oil to fire the injectors
On diesel you have to wait,if its and old and beatup engine it will run on 2 -3 cildiners for atleast 10 -30 seconds before,and DONT FLOOR IT while its cold,recipe for disaster.
Not only that but there us an OEM specification for bearing clearance and end gap. End gap won't be effected much by this, but the bearing clearance is more efficient if the oil is at ideal temperature (like you said the viscosity is different) so even if you have oil on the top of the engine, it's not necessarily doing its job as well because the bearings haven't thermally expanded to allow proper clearance
Nailed it! Exactly what I was thinking, here in Minnesota -30 startup plus wind-chill you can actually hear metal on metal till the oil is actually flowing. It's why we install block heaters. Also try driving in 30 below your windows fog instantly unless your heat is blasting.
It good for the transmission also to warm it up couple minutes,wakey wakey
Dude this guy dont deserve to have a wrench. Warming up your car benefits not also the engine but also the transmission and power steering.
Some of the oil additives are activated when the oil reaches a certain temperature. A little warm up won't hurt.
Warming the “engine” is more like warming the oil to get the oil to the right viscosity for working conditions ….
If you have a webasto or block heater maybe, but idling the engine is still working it, so there's no real difference in driving slow and idling.
@@samuelponcsak1340 sorta but not exactly Idling the engine in park or neutral means the motor is under no load driving slowly is under load .
I do agree that for an everyday car that is factory stock driving it slowly to warm the oil is near enough to the same and equally safe.
@@kingcuan5261 Powertrain engineer here... The load of light driving is less of a problem that just sitting around at idle because idling is one of the worst things you can do to your engine.
@@samuelponcsak1340 also kinda hard to drive a sportscar slow
@@MrDendor Reeeaaaalllllyyyyyy hard
ASE certified mechanic here. There is this thing known as thermal expansion where the parts inside the engine are machined and designed to operate at certain temperatures and before they reach those temps they sort of fit together like a hotdog in a hallway. This leads to things like "piston slap" and premature bearing wear due to a loose fit. There is also the fact that the ECM (the engine's computer) is still in "Open loop" until many of the sensors are up to operating temperature which can cause the engine to operate less than optimally as it is running off of assumptions rather than live data.
Basically, it's never a bad idea under normal operating conditions to let your car idle for a minute or 2 before hitting the road or even longer in cold environments.
@@Karl.Car.tech.1 Bruuuuuh you said summer 😂😂😂 Stop it.
I always wait 30 seconds no matter what. 2 minutes in the dead of winter. But then again my ride is a 93 G20.
Exactly. You don't need 5 or 10+ minutes to warm up. 30 second to a minute in the cold is fine, as long as you take it easy.
Some engines actually have a bad time with warming up in the cold, like the Honda 1.5T Earthdreams. It's such a small and lean engine, it would never warm up enough in the harsh cold and fuel slips by the piston rings into the oil.
@@miles9922 If you get on a plane and it comes straight out a hangar loads you and just take off soon as he/she turns the engine on...You're OK with that?
@@MRMAN-wb1tv you're trying to compare a flying, commercial grade combustion turbine to an earth-bound, consumer grade, Otto cycle engine?
The reason you warm it up isn’t for the oil pressure it’s for the thermal expansion in the metals. Clearances are tighter when a engine is cold and causes the engine to wear faster until it’s warmed up and loosened up.
Bought my 1999 Ford F150 brand new 24years ago. I live in the Midwest so it gets pretty cold out here. Have never sat in my truck to let it warm up always just get in and go. 345,000 miles and it is still running perfectly fine. Never once have I sat there and let it warm up and have 0 issues. My 2015 F150 same ordeal. Have never sat there and let it warm up and has never gave me any issues
True. True.huh. South
Closed loop.???
Big. What do you think made it last so long??
@@Hotshottrucker94 the biggest thing is just not to go floor it or beat on it before its warmed up. Starting it up and puttering it down the street till its warm doesn't hurt.
Hey bud, you don’t warm the engine to get the oil to the top of the motor, generally just warm it so that way to can do snow donuts out the driveway without having to worry about cracking the still cold block
This. For me it's about being able to pull out of the block in front of some slow poke or Mack truck and get up to 50 before he's even close, at about 4500-5500rpm, without worrying about cold damage
I like this argument 👍, donuts are cool
@@tylerdepaolo1864 dont cut over the double yellow line now you probably will Sense i said not to
Michigan State graduate?
It's not about the "car". It's about the humans who don't want to freeze in the car when they get in it in the winter. They wait so there is warm air to blow on them and defrost the windows.
10000000000%FACTS😂😂👍👍👍👍
All you gotta do is have a set of brass balls and let them hang like a savage and you won’t have that issue
@Steve Vento lmao got him.
@@slickenzmcglickenz4671 I can't see through a frosted windscreen with my balls
Exactly thank you.
Depends on the freshness of your oil. On my 03 mustang with fresh oil in the winter I’ll be ready to pull off in 2-3 minutes, then light driving till reach good temp. After about 1,000 miles I’ll prob wait close to 10 minutes before even pulling off. So if your car takes a really long time to warm up I recommend changing the oil to full synthetic for best performance. That is if it takes full synthetic of course.
It only takes about 30 seconds for modern cars to be safe to drive. Realistically, you should wait for your rpms to get below 1000 to prevent damage to any components around your transmission
You know....people have called it “warming up the engine”
Thats got to be a clue...
Exactly u don't just take a cold engine and go to beating on it cause it will cause wear even if it takes time for it to show itself
@@floridaforecast we don't argue facts. Only state them 😌
Just read a comment about never seeing a car with a cold rev limit. I stopped reading. Bless up
doesn’t need to be warm to start rolling down the street at light load. prolly don’t want to redline it though!
@@JackMott isnt that how u crack ur engine? by driving it hard when shes still real cold? I honestly dont know about this video lol, everyone in canada lets their trucks warm up for 10mins.
@@pigbenis4207 probably just waiting to get some heat