More Evidence That Doesn't Support 10K Oil Changes

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Thank god this isn't an EU forum as these debates over OCI's will involve same numbers but in kilometers. "My BMW M6 is a high performance engine and I mush change my oil every 5k km over that ridiculous 10k or even 15k km interval as it's just sending them to an early grave". Yes folks, I've seen that argument. 5k km interval.
I’ve never owned these Euro cars, but don’t some of them recommend like 30k km intervals (with oils tested & proven at that distance)? And there’s people changing at 5k? 🤯
 
I disagree. I haven’t seen any benefits to the OLM for Honda. Both Toyota and Honda suffered from the same oil consumption issues between 2005-15.
How many hours and miles does the Honda OLM typically arrive you at? Do you know if it's as advanced as say GM's? If the OLM isn't properly designed (doesn't take into account all the necessary parameters) or the OEM doesn't spec a sufficiently robust lubricant for the interval the IOLM is going to arrive at based on its programmed parameters, that's not really a condemnation of the IOLM or the IOLM concept but rather of the OEM.
 
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I’ve never owned these Euro cars, but don’t some of them recommend like 30k km intervals (with oils tested & proven at that distance)? And there’s people changing at 5k? 🤯
Ya. Some of our Euro-members have mentioned it. IIRC there's an option for a fixed interval of the lesser of 2yrs/30k km or something close to. I don't remember what the variable interval is.
 
Thank god this isn't an EU forum as these debates over OCI's will involve same numbers but in kilometers. "My BMW M6 is a high performance engine and I mush change my oil every 5k km over that ridiculous 10k or even 15k km interval as it's just sending them to an early grave". Yes folks, I've seen that argument. 5k km interval.
Very common in Canada actually, 5,000 miles was just turned into 5,000 kilometres, so we got even more frequent OCI's.
 
Would you buy any of them with 200K on the clock? :unsure:
I'm the .0000001 that does oil changes at 250, 500, then 3k intervals. A car will be just fine doing 10k changes for a very long time. I let mercedes change the oil in my wifes AMG and its just fine. If you want something to last past 200k buy it new, don't expect other people to stray from manufacturer oil intervals.
 
How many hours and miles does the Honda OLM typically arrive you at? Do you know if it's as advanced as say GM's? If the OLM isn't properly designed (doesn't take into account all the necessary parameters) or the OEM doesn't spec a sufficiently robust lubricant for the interval the IOLM is going to arrive at based on its programmed parameters, that's not really a condemnation of the IOLM or the IOLM concept but rather of the OEM.
The OLM is very intelligent.

I see large variations in oil life % based on how I drive ( idling, speed, trip length ).

Max oil life is around 18,000 kilometres on the FIT ( coke can sized sump ) , and 20,000 kilometres with the Civic when doing highway driving.

I fully trust it.
 
What on earth does this mean?

Someone who is good at medicine may, or may not, know a darn thing about cars.

A car is a pretty small fraction of a doctor salary.

Why should they spend any time worrying about it when it is so unimportant in the context of the rest of their life?
Because of what they do which constitutes nearby friendships, acquaintances and generally - just hanging-out with the upper-tier world, inside an upper-tier world. They usually don;t gather three other doctors from the office and head-out to lunch in a fancy restaurant, in a hypothetical 200k ride. Don't confuse you and I's middle class with their world.

I have two veteran, successful doctors in my family circle. What they drive - where they live - how they dress and the character they display, are generally always professional-looking. They generally encircle a working money exchange in one week, what you and I gather in an entire year.

I did encounter one doctor with 200k miles one time. But it was a fully restored, inside & out....... everything classic & mint, acting-out as a classic cars collector. The speedometer and miles accumulated were the only original thing on this ride. A new one was nowhere on earth to be found. So instead of rolling back the mileage and possibly creating damage to it, he left the count original and kept the numbers at approx 200k.
 
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Because of what they do which constitutes nearby friendships, acquaintances and generally - just hanging-out with the upper-tier world, inside an upper-tier world. They usually don;t gather three other doctors from the office and head-out to lunch in a fancy restaurant, in a hypothetical 200k ride. Don't confuse you and I's middle class with their world.

I have two veteran, successful doctors in my family circle. What they drive - where they live - how they dress and the character they display, are generally always professional-looking. They generally encircle a working money exchange in one week, what you and I gather in an entire year.

I did encounter one doctor with 200k miles one time. But it was a fully restored, inside & out....... everything classic & mint, acting-out as a classic cars collector. The speedometer and miles accumulated were the only original thing on this ride. A new one was nowhere on earth to be found. So instead of rolling back the mileage and possibly creating damage to it, he left the count original and kept the numbers at approx 200k.
This whole topic is a bit of a strange tangent - in a discussion of what oil change interval is appropriate, you bring up doctors?

What they drive and why?

I don’t see the relevance.

“Upper-tier world” - means what, exactly? How do you know what “world” those of us on the forum hang out in?

We do have a couple of doctors on here, too, by the way.

For the record - I know a doctor, quite well, and she drives the 2002 Volvo V70T5 mentioned in my example above. She is a surgeon, and she cares not one bit about “upper-tier” anything, and will happily take you out to lunch in her 230,000 mile Volvo.

But she is more likely to take you out to a great ski area, which is much more her milieu…
 
This whole topic is a bit of a strange tangent - in a discussion of what oil change interval is appropriate, you bring up doctors?

What they drive and why?

I don’t see the relevance.

“Upper-tier world” - means what, exactly? How do you know what “world” those of us on the forum hang out in?

We do have a couple of doctors on here, too, by the way.

For the record - I know a doctor, quite well, and she drives the 2002 Volvo V70T5 mentioned in my example above. She is a surgeon, and she cares not one bit about “upper-tier” anything, and will happily take you out to lunch in her 230,000 mile Volvo.

But she is more likely to take you out to a great ski area, which is much more her milieu…
Yeah, this was a bizarre stereotype. I know dozens of doctors very well (comes with my line of work), and my BIL is a doctor. Financially, there's a HUGE range, depending on whether they are a GP, surgeon or specialist, how many hours they work, how large their patient roster is, if they are a specialist, what the modality is, how long they've been practising for, where they are practising...etc.

Plastic surgery for example, pays VERY well if you are good and establish a reputation (see: Dr. Haas). Most GP's in comparison, do not live lavish lifestyles (at least none of the ones I know), and even within specialties that pay well, what your case turnover rate is what dictates how much you pull-in. Some can handle huge caseloads and rip through them like a machine, others can't. A Radiologist that sits down and can rip through 150 cases in a sitting makes 3x what one that does 50x in a sitting.
 
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Yeah, this was a bizarre stereotype. I know dozens of doctors very well (comes with my line of work), and my BIL is a doctor. Financially, there's a HUGE range, depending on whether they are a GP, surgeon or specialist, how many hours they work, how large their patient roster is, if they are a specialist, what the modality is, how long they've been practising for, where they are practising...etc.

Plastic surgery for example, pays VERY well if you are good and establish a reputation (see: Dr. Haas). Most GP's in comparison, do not live lavish lifestyles (at least none of the ones I know), and even within specialties that pay well, what your case turnover rate is dictates how much you pull-in. Some can handle huge caseloads and rip through them like a machine, others can't. A Radiologist that sits down and can rip through 150 cases in a sitting makes 3x what one that does 50x in a sitting.
Same with pilots.
 
i think the whole doctor thing came in because the car in ACC's video is supposedly owned by a doctor.

The implication being that doctors are smart... but leaving out that a guy can be real smart about one thing and no so much another. Even ignoring that most of my recent interactions don't really support the implication that doctors are smart originally postulated.
 
The internals of this engine are really sludged up. And they have documentation that 10K oil service was done. Make of it what you will.
No service records during lease. And they obviously weren't using HPL or Valvoline Restore and Protect! LOL.
Ford Dealer bulk or Motorcraft SS likely used. Direct injection engine.

If you do 10k service without regard to driving style and usage - you will likely have oil breakdown issues.

I moved to 9K intervals on wife's car - it ran better than new, and mutiuple UOA looked as good or better than any UOA ever posted on here. BUT she drove 2k a month with at least 75% high speed highway for 1 hour+ one way commute 5 days a week.
Perfect candidate for extending a OCI.

I drive 5K a year now I am retired. No more long highway commuting; mostly slow around town with infrequent highway trips.
I Change the oil 2x a year - Spring and late Fall. and its pretty trashed (appearing) changing at 2200 miles. My manual allows
1 year or maintenance minder oil changes, the OLM in the DIC shows 40 - 50 % oil life remaining when I change.
This would absolutely be a problem using the OLM. Even at these short intervals, the engine is not happy; its noisy when hot and gets poor fuel mileage. It is a Direct injection design with very high compression Cleveland Ford/ Mazda 2 liter (Similar to the Focus engine).

If you are going to extend OCI past 5k miles - better pay attention to how the vehicle is used and factor that in - or else.

But we all know that already, correct?
Don't need a you tube video to tell you that. - Arco
 
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i think the whole doctor thing came in because the car in ACC's video is supposedly owned by a doctor.

The implication being that doctors are smart... but leaving out that a guy can be real smart about one thing and no so much another. Even ignoring that most of my recent interactions don't really support the implication that doctors are smart originally postulated.
AH, OK. That makes more sense.
 
No service records during lease. And they obviously weren't using Valvoline retore and protect! LOL.
Ford Dealer bulk or Motorcraft SS likely used. Direct injection engine.

If you do 10k service without regard to driving style and usage - you will likely have oil breakdown issues.

Went to 9K intervals on wife's car - it ran better than new, and mutiuple UOA looked as good or better than any UOA ever posted on here. BUT she drove 2k a month with at least 75% high speed highway for 1 hour+ one way commute 5 days a week.
Perfect candidate for extending a OCI.

I drive 5K a year now I am retired. Nomore long highway commuting; mostly slow around town with infrequent highway trips.
I Change the oil 2x a year - Spring and late Fall. and its pretty trashed (appearing) changing at 2200 miles. My manual allows
1 year or maintenance minder oil changes, the OLM in the DIC shows 40 - 50 % oil life remaining when I change.
This would absolutely be a problem using the OLM. Even at these short intervals, the engine is not happy; its noisy when hot and gets poor fuel mileage. It is a Direct injection design with very high compression Cleveland Ford/ Mazda 2 liter (Similar to the Focus engine).

If you are going to extend OCI past 5k miles - better pay attention to how the vehicle is used and factor that in - or else.

But we all know that already correct?
Don't need a you tube video to tell you that. - Arco
I agree. A recent UOA has me changing the oil in my wife's Liberty since she retired a year ago. She worked about 22 miles from the house getting the oil nice and hot. Now the majority of the runs are to the pool and back, or shopping. One-two mile runs each way, with an occasional highway run. My UOA told me two 6 month OCIs is the way to go. I'll circle back to tell new members here to avoid reading blanket statements like oil ABC is good for a certain amount of time or miles. Spend the money and get your own data if you concerned about your car and OCI.
 
Most people don't realize how important a good working PCV system is. It's probably one of the most ignored maintenance items. It could also be a system that suffers from an bad design depending on what engine - some are more effective than others. Short trips and not properly evacuating the crankcase is a good way to get the results shown in the video. I didn't hear him mention anything about checking the PCV system as part of their planned work.

Also, this vehicle could experienced some stuck rings, which increases the combustion blow-by of gasses and moisture which only accelerates the sludge formation situation. And if the rings are getting stuck, most likely the PCV valve is also getting contaminated and not working well ... it's become a run-away situation. Lots of factors had to add up in the wrong direction to result in that level of sludge.

I get a laugh from these guys on the car boards that want to remove the PVC system and just run a filtered vent on the valve cover. That's not effectively evacuating much of the nasty gasses and moisture inside the engine. Can't be good in the long run.
 
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This thread is a slog. Now I need an oil change, I mean I feel the need to detox.

When in doubt, CHANGE IT OUT!

So what is really being said here, is that you like to do oil changes. All this talk about sludge and such are just an excuse, The real reason of your dislike for 10k mile oci has less to do with worry about the engine, and more to do that you go through serious withdraw, if you aren't regularly in the garage changing oil. ;)

Now that, I understand. Why didn't you say so a 178 posts ago?
 
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