What's inside a Million Mile Engine?

I thought im gonna see an 1M mile engine teardown....

“What’s inside a million mile engine?”
Me: *Now I’m gonna take a wild guess here and say engine components.*

0:37 are we just gonna ignore that it showed 100,000 miles😂

To be honest guys, I have never cared about cars before in my life. You dudes have legitimately piqued my interest & gotten me to think a little harder about maintaining my own car.

Title: What's Inside a Million Mile Engine?
Me: Pistons

Alternate title: What makes a reliable engine

I worked at a Nissan dealership and one of the customers we had had a million mile Nissan Frontier and Nissan did the same for the customer that Toyota did for this guy

i started watching donut not knowing shit about any of this stuff but after a few months on continually watching these guys i can confidently say that i learned a few things of how car works so thanks to these great videos i have a little more understanding about how cars works hats off you guys

“We’re gonna tell you how to get an engine to go a million miles”
*odometer at 100,000 miles pops up*

My favorite part is when I didn't see a million mile engine

When I took an automotive class our book said that when you drive your car you should drive it at least 5 to 7 miles each time to have piston blow burn off and not turning into sludge

This channel continues to amaze me with the easy to understand info!

Jerry's trying so hard to make his sister regret selling the Truck 😂😂

What's inside a Million Mile Engine?
- usually Toyota parts

8:41 wow that edit was so clean

I'm surprised you didn't mention Volvo, considering they have the world record with a P1800 with 3.2 million miles. I had a 1974 Volvo 245, same engine as the P1800, that reached 1 million miles. It was still going strong when I gave it away.

“It outlasts the truck itself.”
It just has to make it 5 years and then that dodge is rusted out.

*What’s inside an engine*
James: dad..?

I had a tundra TRD 2uzfe (4.7L) I sold it with 476k miles to a friend 2 years ago and its still running flawlessly today.

Glad you touched on engine cycles and use cases in this video. Most people just look at pure mileage and think that's the end all and be all of gauging engine reliability. But they totally ignore how the car was actually driven, when in fact use case is probably the most critical factor in the life of an engine. Engine maintenance is also something that plays a huge part. When you see engines with insane amounts of miles on them you're usually dealing with somebody that was meticulous to the extreme about maintaining their vehicle. These are the people that check all of their fluid levels every time they stop to fill up with gas. These are the people that change their oil a thousand miles earlier than recommended just to be safe. These are the people that are proactively maintaining every single thing on their vehicle and not just driving until an idiot light comes on.

Talks about getting an engine to a million miles,
Shows a photo of “100000” 👍

Hey donut, can we get a video showing all the employees project cars?

He makes the most quality videos from the donut channel. 💪🏼

I cannot tell you how happy it made me to see the 12 valve get some recognition from donut media: a mostly CAR enthusiast based company. I was hoping I’d see the cummins in this video when I clicked on it

Jerry: how you can get an engine to 1m miles
Also Jerry: shows 100000 miles on the clock

Finally, someone has addressed the issue that Engines do not do mileage, they do revolutions/cycles .
Its such a naive common misconception that hardly anyone is bothering to correct. A million mile engine that has been driven daily on long journeys, mostly sat in high gear at low rpm will be in much different condition to an engine that is used infrequently, on short journeys in low gear at high rpm, with the exact, same mileage.

Are we ever gonna hear this “my sister stole my truck” story? This is the second reference I’ve heard of it!

thank you for this amazingly laid out explanation

The craziest part is that the first two 4.7 tundras to hit one million miles were sold by the same dealership.

One thing that makes an engine more reliable: not using the same gasket supplier as BMW or Ferrari.

I love how educational your channel is! I learn something new every time I watch a new video

Massive credit to your graphic animation people
Oustanding work

We need an episode where we track down Jeremiahs missing car.

What makes the engine reliable?
Scotty Kilmer: UNMODIFIED TOYOTA!

Letting the engine get up to temperature before ripping it and keeping up with your fluids is the least work you have to do to keep it in good health

I have a 2007 Toyota Tundra with the 2uz-fe and it has 180,000 miles and is still going strong. Never have needed to do anything to it except for oil changes and one tune up.

As a Toyota technician of 8 years, I can confirm that the 2UZ-FE V8 is one of the most reliable engines I've seen. They just keep fucking going. Also can confirm that the engines I've seen make it the most miles, did it in a shorter period of time than most, like mentioned in this video. I've seen Prius' go over 300k miles in a few years because Taxi drivers would drive the shit out of them day and night. They seem to be less likely to leak oil as well. I believe the many hot/cold cycles is what really causes engines to wear down faster and seals to start leaking sooner. This is why you usually hear that "highway miles" are much better.

"We measure by miles, because that the only metric we have."
That's the most American thing I've ever heard in my whole life.

This was extremely interesting and I learned something new... thanks guys!

my first car was a dodge neon first gen with the plagued head gasket, this video makes all the sense, thank you for teaching this

I've seen many 2UZ-FE's with well over 300k on them, with nothing more than regular maintenance done to them. Definitely one of the most reliable gas motors ever.

Lived in Zambia when I was younger. Due to my fathers work. Wonderful country loved it to bits.
But some the Toyotas you'd see driving round had over 2 million kilometres on the engine. Quite insane engineering, and they were quite Innovative with fixes keeping them on the road

I’ve literally been saying that the 2uz fe is one of the most reliable engines ever and that they are super bulletproof, the only issue I ever had with mine before I sold it was the water pump and that was my fault, forgot to fill it up and it overheated

I’d definitely agree on the point about cycles but it also comes down to how the user handles the machine.
Where I worked we used Deutz 3-6 cylinder air cooled machines to drive water pumps for borehole testing. These tests would often involve running machines at mid-to-full revs for 24-72 hours continuously, and those engines would usually be serviced every 300 hrs, which worked out to every 1-3 weeks. Despite the workload, environmental conditions and general lack of maintenance these engines had compared to most others, we have many of them that have been running 10+ years, and some even up in the 15-20 years, which comes out at about 50-100k hours on a block. I think the principle of over-designing those engines for that purpose, and how simple the mechanisms on them were, is what allows the, to be so reliable in the long run.

Misread it and thought it would be "Whats inside a million dollar engine?", when is that one coming?

These ads are getting funnier every single day

Fantastic explanation, much appreciated.

Thanks, a very informative vid.

And here I go with the
"Is this Matt Farah's Million Mile Lexus?"

We just watched a man missing his old reliable truck

Just subscribed! I’m part of the family brothers! I appreciate your knowledge/wisdom. 🍻🤝

Hey I appreciate that so much help reminded me why I got this I 6 motor.. I have problems with it leaks a little oil well about a quart every 4 to 5 days but it's a straight 6 with I believe a failing Turbo because it only smokes a little when it idles too long couldn't remember man I appreciate your videos so much you help out people whether you know it or not

I also gave my car to my sister, who then sold it to a friend’s kid. Now they call me to help troubleshoot any noise or rattle that it makes. Lesson learned.

10:08 Say that again, slowly this time:
"We measure engine's lifespan by miles, because that's really the only metric that we have."

James' 86
if keeping the 4A-GE isn't an option, I'd go for something like a K20. It keeps the spirit of the car an NA 4 cylinder, they make power super easy and cheap, reliable.

I got a 07 accord with 320k miles and still running strong. The k24 is an amazing engine

how to do 1 million miles:
drive tons of highway miles in a dry climate, and don't rev the engine above like 2.5k
in wet climates the car falls apart from rust before the engine does.

The Toyota 1UZ-FE don’t play either

Toyota bought back from the owner a Toyota Tundra with a million miles on it, with the original engine & trans. I'd like to see a video about their findings. This was about 2 years ago.

I'd say Toyota's HD engines are some of the most reliable engines around, theres plent of Land Cruisers running around with 200k, 300k half a mil and so on

Netflix: Are You Still Watching?
Someone’s daughter: 3:11

My 2Uz in my OG tundra is about to hit 300k miles and runs absolutely beautifully

Feeling the same pain Jeremiah! I miss my Toyota Pick up so much but used cars are so expensive right now.
=(

"In a long enough timeline everything gets a LS"

Jeremiah: "Straight sixes with aluminium heads are the most reliable"
Irv Gordon's Volvo P1800: **Laughs in Swedish**

Ford Australia made a straight 6 cylinder engine in the XD falcon with an iron head (250ci). Sydney taxi's famously used these cars for a long time - an uncountable number were driven over 1,000,000 km before being retired. It's a shame that after watching many videos about cars that are reliable and go the distance, I never hear of these being mentioned.
A true legend here in the land of Oz.

I remember reading an article indicating the best combination for a durable set-up:
iron block
iron heads
manual transmission
realized i actually have it already in my 94 b4000😁😁😁

What's inside a million mile engine?
Me, an intellectual: engine

Hey Jeremy, literally waited for this hoping I could be first. Do you prefer Jerry, Jeremy or Jeremiah? We got some people wondering.

The 2uz has an amazing oiling system.

My first car was an 08 Cobalt with the 2nd gen EcoTec engine. It had 150,000 miles on it when I sold it and the engine still ran like a dream. I never missed an oil change though. Every 3,000 miles or 3 months.

Jerry "Cummins 12 Valve is the most reliable engine ever"
Me: Laughs in Catterpillar 3406b.

You can’t forget about Detroit though saw a cement mixer with 3 million miles on it

Not gonna talk about Ford's 7.3. I've legit seen one with 2.5 mil miles.

Toyotas are a different breed. my grandad has 02 corolla that hasnt seen an oil change in the past 6 years "because it needs topping up as it burns more of it than the actual fuel". The air filter has NEVER been changed (only hoovered). It has a hair trigger clutch. The car has won the battle against two brick walls. Last time its been washed was 6 years ago. Weve run it on pure spirit for a while as we had run out of fuel once. The current highscore is over 560k miles and the only thing changed was a coil pack because we got tired of the car sound not firing on one cylinder.

Bless the people that took the time and effort to engineer these amazing marvels

You should make a D-list episode of the longest lasting cars (milage), and yeah I only want this so you can talk about the reliability of old redblock volvo tanks :)

Kudos, we bought back a Chrysler minivan taxi with 385000 miles , we ran it on the dynamometer and it made nearly the published torque and power and then we checked the fuel efficiency and again it was nearly perfect. We then tore it apart and it had worn predictably but all the gaskets sealed perfectly as well as piston rings etc. We estimated the engine would easily make a half million miles easily. It was a 3.3L cast iron block, aluminum head OHV V6. But it was a taxi, it got started once a day and ran all day, so fewer cycles ( by the way we in the industry call it duty cycle).

Honestly the Toyota 1UZ, 2UZ, 3UZ engines are great engines overall, once having a 2000 Lexus LS400, that was the best car I ever had. I’m a highway driver mainly because I travel, and I always try to drive at least 10 miles at speeds above 45 miles an hour to warm up my cars, and living next to the interstate which is the main road is a perk at 55 MPH. Almost all my cars I’ve owned are highway cars that had slightly higher miles and were impeccably maintained. Those are the best cars to get as it’s overall less worn than a city car. And that goes for every component, seals, suspension, and especially the transmission. I’m glad someone took the time to explain this.
I also try to buy cars that don’t have too small of an engine that’s powering it, like most of these modern throwaway cars. A 4 cylinder engine in a 4000 pound SUV is not gonna last as long as it’s V6 counterpart because of the extra strain of having to pull all that weight per mile with significantly less torque and power, a contribution that I believe also effects engine life. Don’t even get me started about small displacement turbocharged engines. Ughhh!
Well done on the video!

every time jeremiah says “orl” instead of “oil” i giggle a little

I like how volvo holds the record for personal vehicle owner to cross over 3 million miles and third place

I have a Toyota Hilux n70 3.0 d4d
And I love it.
Cheers from Australia

I had a Seat Leon with that 1.9 TDI PD engine mentioned. A VERY reliable car.

10:10 "that's really the only metric we have"
The rest of the world: Are you sure about that

“Million mile engine”
*me laughing with my blown 88,000 mile ford motor*

I’ve seen semi trucks with way more than one million miles. There was a guy with a 74 Kenworth that had close to 4 million miles on it. Obviously the engine had been rebuild a couple times, but still.

Engine cycles is the reason why you should leave the car idling for a couple minutes after you start it up before driving, this reduces wear alot more than you would think and I would say is almost as important as good oil and coolant systems.

Got my first TSI a week back. Absolutely loved this video! Very informative!

Thanks for the great videos, exactly what I needed after a tough day of online learning!

Great video, learned a lot.

I used to own an '88 Toyota Pickup. Getting parts for it was kind of difficult sometimes bc the guys at my local parts store would ask year, make and model. When I'd tell them "pickup" they'd always ask for a model again expecting me to say Tundra or something. The origional Toyota trucks were literally called "Pickups". Every friggin time! lol

Title: whats inside a million mile engine?
Me: Toyota parts

Talks about reliable I6’s and doesn’t mention the ford 300 😢

Thanx for the good explanation. If I buy a used car (with a mentioned Toyota engine within), is there a reliable way to detect if the car has already a high oil consumption (like 1 litre pro 1000 miles) ? Does the compression test also work if there is a lot of carbon built up on the oil control rings ?

had a 95 ram 2500 with the 6bt. i was diligent about maintenance. did all minor maintenance myself on-time everytime. the oil filter on that melonfarmer is about the size of a "tall-can" of beer, alot of oil. the electrical system required a refurb at 200,000. it still ran reliably but the weak system was making it hard on the starter and the glo plugs or heat grid wasnt getting up to temp fast enough. my dad and i upgraded that system with more robust wiring and better batteries, which wasnt very hard. other than that... no real issue. having an aggressive lift and huge knobby tires with all of the added stresses hasn't done anything to it except the speedometer is no longer correct (youre actually going 6-7 mph higher than what it says). it was at 300,000 and running strong as ever when my dad bought it off of me. it's parked right now because practically all the rubber bushings (unrelated to the engine aside from the mounts) are crumbling to dust. thats going to be a pain in the dick whenever we get around to doing it. i couldnt recommend getting a truck with a well maintained 6bt more. that truck will probably outlive me.

*Jeremiah “your engine has to be 2 pieces to get your pistons in”
*Ettore Bugatti and W.O Bentley enter the chat...

0:38 “A million miles”
*Shows 100k*

Our 5.7 2008 tundra went almost 500,000 miles before we traded it in and got a new one an amazing truck. The only thing wrong with it was all the rubber or plastic trim on the outside were disintegrated

I love how at the beginning he says so that stuff about a million mile engine and it shows an odometer with 100k on it

The cummins 6bt is basically a smaller version of a 15L semi truck engine, and semi truck engines get overhauled at 1 million miles. Maintenance is a huge key to long-term reliability of any engine.