Who had great success reaching high mileages with recommended (extended) service intervals?

That would be a land train run for hours on end in the outback, not a compact car in stop & go traffic.
I calculated that the way i drive my car, a 10K oil change would be about 150H on the oil, which doesn't seem excessive. Not your typical stop & go driving. I usually change oil after about 80 to 100H (5 to 6K).
 
You probably won't find anyone who embraced extended service intervals & was rewarded with 'high mileage' without an engine/transmission
replacement. The extended intervals were intended to conserve resources, not maximize vehicle life/distance covered before retirement/replacement. ( I would consider 'high mileage' anything over 300k miles)
I disagree 100 percent. For someone who drives their vehicle, 10,000 is usually very easy to obtain, even longer in many cases. I had a state police 2009 Crown Vic that I bought from the state police with 197,000 miles on it. I received the maintenance records with the car, and I put almost an extra 200,000 miles on it using 10,000 mile oil changes. It never had a transmission or engine put in it or torn apart. I was a state trooper. I know how those cars get driven, and I drove it hard myself. I got rid of it because I wanted something else and had some electrical issues (taillights). There is a 2005 Honda Pilot in my driveway with almost 300,000 miles on it with 10,000 mile oil changes. It doesn't add the miles near as quickly as my car does. I also have a 2007 Dodge Ram 1500 with around 240,000 (or somewhere around there) miles on it.

I believe vehicles that sit around will see more issues in general. Cars last longer if you drive them.

When I see a UOA with 3,000 miles or something so short, it lets me down, and I find it boring.

I'm not part of the "cheap" crowd looking for the best deals, and I don't keep 10 years worth of oil on hand. I've been known to use random oils, just to try them. I will use Redline or Amsoil even if it doesn't have the proper spec. I live so dangerously.
 
True indeed Overkill...

My neighbor has a old late 80s Ford Escort with 1,000,000 miles plus... The orginal owner was a paper delivery person and used it for courrier delivery too.

Still quite impressive though.... One million miles. Holy cow.

Makes my 337,000 plus mile car seem like it's a spring chicken... :)
Late 80s -- was that during the period when Escorts were using basically Mazda 323 drivetrains? That was the arrangement in my old '92 Mercury Tracer, and that car ran well north of 150K without issues. It may well still be running somewhere for all I know.
 
Still an exceedingly demanding application and with actual extended drain intervals, the latter being the topic of discussion.

You made no statement as to the requirement being compact cars in stop & go traffic in the post I replied to. Shifting the goal posts around because the responses don't align with the conclusion you've already drawn isn't a great way to foster productive dialogue.

There are plenty of fleets that run obscene mileage such as LEO, taxi and limo applications. The common thread being obscene amounts of mileage able to be accrued over a reasonable duration. Couriers are another great example, that's what the million mile Ford was doing IIRC. Average Joe isn't going to rack up 500,000 miles on his Chevy Cruze driving 15,000 miles a year, it would take him 33 years and the odds of the vehicle being taken out by an accident, rusting out or traded before then are extremely high.

My Expedition was in the "rusting out" category, the body was going on it with ~200,000 miles on the drivetrain, which was still all original and extremely healthy. I've taken a couple of vehicles to that mileage, all Ford products, all on ~7,500 to 9,500 mile change intervals, almost exclusively on Mobil 1. I wouldn't necessarily call those extended drains, but they were longer than what was mandated by the OEM at the time.

I wouldn't, in most cases, consider the OEM drain intervals "extended drains" per what the OP was opining on. My wife's truck ticks off the OLM at somewhere around 10,000 to 12,000Km (6,200 to 7,500 miles) depending on the conditions. I definitely wouldn't consider that a long drain interval compared to what some of the Euro marques have called for and it's on the low end of what I changed the Expedition oil at.

I always mention this when the Toyota fanbois bring up the million mile tundra. At my current rate, it would take me 100 years to get a vehicle 1,000,000 miles. Im 32. So I'll be 132 by the time I get there(actually the truck already has 92k miles so another 91 years). If I get my truck to 300k without needing a different vehicle at some point along the way, I would be EXTREMELY surprised.
 
This means (horror of horror) the oil filter was only replaced every other oil change,

yet somehow you reached a very high mileage...
Honda doesn't tell owners or dealerships to do this because they want engine failures, some of which they'll be responsible for if still under warranty (skeptics will insist it won't cause damage until "later" :rolleyes: ). Honda says do this because it's safe to do and won't cause issues.
 
Honda doesn't tell owners or dealerships to do this because they want engine failures, some of which they'll be responsible for if still under warranty (skeptics will insist it won't cause damage until "later" :rolleyes: ). Honda says do this because it's safe to do and won't cause issues.
I would say 50% of my local Honda dealerships will automatically replace the oil filter every other oil change. With my driving, that’s 25,000 miles on the same oil filter. The other 50% just change it with every oil change.

Actually, the issue that used to freak out both the customer service staff behind the desk and techs was me brining my own 0w20 ( previous generation civic ....2006 ) telling me I would ruin the engine ( spec‘d for 5w20 ).
 
I would say 50% of my local Honda dealerships will automatically replace the oil filter every other oil change.
We leased a Honda once (while we've owned a few more) and I was unsure about how to maintain it under lease so I played it safe and had them do the oil changes. Plus, they only charged around $30 at the time.... They changed the filter each time. I suspect many owners would be disappointed if they didn't, thinking they were scamming them (just like many unscrupulous shops might not change the filter, just wipe it clean - not saying shops do this, just have read this). I don't see why not to change it since you're already under the car.
 
It’s a good question and one hard to answer because of the parameters of the question...300,000 plus miles, highway commute, 10,000 OCI.

But I tried to do it with my Lexus LS460. Drove 25,000-30,000 miles a year, of mostly easy highway commuting. Easy driving. Never beat on it, well maintained, garaged. Everything was going just fine, until the day I said...you know what? I’m going to listen to the guys on the forums and try 10,000 mile oil changes.

I don’t know if it’s coincidental or not, but that’s when my troubles started. Now, this also coincided with actual vehicle mileage - I had done 5,000 mile intervals up until around 90,000 miles or so, then I decided to extend them out. Weird thing started happening, I started using oil. It would read full all the way up until 5,000 miles on an oil change and then it’d start using it after...a half a quart/3/4 quart between 5,000-7,000. Didn’t know why...perhaps it sheared or something, I don’t know. Then I pulled my spark plugs at 115,000 miles to replace and half of them were oil soaked on the electrodes and threads. Not the valve cover gaskets. I was burning oil. I kept up with the extended drain for a little more...noticed I was starting to use a little oil before 5,000 miles, maybe half a quart. At around 8,000 miles I probably would be dumping 2 quarts in it total.

By the time I reached 150,000 miles I decided to cut my OCI down to 5,000-6,000 miles again. I noticed I had quite a bit of oil tracking into the intake at this point. I probably was starting to have stuck rings. By the time I reached 170,000 miles I was adding 4 quarts of oil in a 5,000 mile oil change interval. This is almost 80% highway commuting. Easy up and down the highway stuff. 30,000 miles a year just cruising back and forth to work doing 68-70 mph, no traffic, no city driving (ever). Either highway or country back roads doing 45 mph. Almost not even having to touch the brakes every day. Regular coolant changes, tranny services, rear diff serviced every year.

By the time I reached 179,000 miles it was drinking a quart every 600 miles. I traded it in. Loved that car too. Did my experiment with extended drains cause these problems? Probably not. I really don’t know, but it DID scare me away from extended drains...don’t think I’ll ever go past 5,500 miles again. Lol.
 
By the time I reached 150,000 miles I decided to cut my OCI down to 5,000-6,000 miles again. I noticed I had quite a bit of oil tracking into the intake at this point. I probably was starting to have stuck rings.
Your PCV system was due for replacement or service (cleaning).
 
Your PCV system was due for replacement or service (cleaning).
Keep in mind that worn rings create blow by, that creates pressure in the crankcase and forces the oil through the PCV system. It also started tracking through the air snorkel at the throttle body. Car was also creating some smoke on heavy acceleration. And the plugs were covered in oil when I removed them.
 
I only ever pushed the OCI on my Jetta once it got past something like 150k on the clock. Maybe it was closer to 200k, don't remember. Would run to 14k or so on an OCI, against a 10k rating. "Many" online had indicated that their UOA indicated that this was safe.

At 255k the turbo snapped. From pushing the oil too far? Don't know. I put in a bigger turbo and a tune, perhaps 40% more power. After that I went back to 10k OCI's. :cool: Sold at 314k running just fine, body was a getting tired and I thought it might be time to move on, before something gave up.
 
It was also to get on the coveted "lowest cost of ownership" badge pinned to their chests, which is BS IMO.
the euro manufacturers never did this, nor did the japanese

when dino left the scene the standard 7500 interval disappeared with it.
 
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Please share your personal experience if you fall under this category of drivers (or even if you don't lol) and had success reaching high mileages, say 300k or more miles with no engine or transmission related issues strictly by following the maintenance schedule established by the manufacturer, including 10k oil changes, lifetime fluids etc.
What do you consider "engine or transmission related issues"? Some people here will dump their car because it burns a quart of oil every 2,000 miles saying it's all worn out. Something that is normal wear at 150K, but thus will prevent the owner from reaching high mileages.
 
What do you consider "engine or transmission related issues"? Some people here will dump their car because it burns a quart of oil every 2,000 miles saying it's all worn out. Something that is normal wear at 150K, but thus will prevent the owner from reaching high mileages.

True, people get entirely too hung up on oil consumption around here. If the engine is running nicely, what's wrong with a quart every 2-3k mi?
 
True, people get entirely too hung up on oil consumption around here. If the engine is running nicely, what's wrong with a quart every 2-3k mi?
I agree, but a few reasons wrong/detrimental with a quart every 2,000 miles. You’re in danger of ruining your catalytic converters, no? I know oil can destroy cats, but I don’t know what the amount is. And fuel economy/efficiency...too much oil getting into the cylinder will reduce the efficiency and fuel economy of your car. Spark plugs can become fouled too. I guess you could also include the cost of oil, if you’re putting 3 quarts in a 6,000 mile oil change, you’re spending $12-15 bucks on oil between actual changes (Although that’s not a lot of money in the grand scheme of things).

But yeah, I agree. I think you can keep an oil burner going for another 100,000 miles with a little effort...and it’s a lot cheaper than another car payment.
 
You’re in danger of ruining your catalytic converters, no?
How? Seems like another urban myth.

I guess you could also include the cost of oil, if you’re putting 3 quarts in a 6,000 mile oil change, you’re spending $12-15 bucks on oil between actual changes
I always laugh when people here say they plan on spending $2,000 or $2,500 to rebuild their engine because it's using a quart every 1,000 miles. Even at 500 miles a quart, that's maybe another $100 a year spent on oil. It will take them another 20 or 25 years to break even on that repair and the car will have rusted out well before that.
 
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