Probably some entries in a profit/loss spreadsheet, too. Don't want that consumer product lasting TOO long, either.
CAFE Credits for Longer Oil Drain Intervals
- Thread starter cvd537
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Yeah the oil tests that came back on my wife's gdi hybrid, there's no way the oil is staying good for the recommended 7,500 mile oci.
In winter fuel dilution gets the oil at 3,600 to 4,400 miles and viscosity breakdown I'm assuming because of shearing gets the oil at around 6,000 miles.
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Reliability and longevity are key these days. They say car owners are now keeping their vehicles longer than ever before.
I certainly don't want to spend 40 or 50k on a new car any time soon.
The CAFE credit for longer recommended OCIs idea has long existed even here but is now exposed as an urban myth.
As @Nesterenko wrote, vehicle longevity matters a lot as a consequence of higher costs of new and used vehicles, so I'd doubt that OEMs are recommending grades and OCI intervals with no cognizance of this.
There's also financing to consider. Does anyone really think that those offering six year plus paper on new vehicles are expecting no more than length of warranty life of their collateral?
As @Nesterenko wrote, vehicle longevity matters a lot as a consequence of higher costs of new and used vehicles, so I'd doubt that OEMs are recommending grades and OCI intervals with no cognizance of this.
There's also financing to consider. Does anyone really think that those offering six year plus paper on new vehicles are expecting no more than length of warranty life of their collateral?
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The manufacturers are always trying to lower "The cost of ownership" - KBB, and Consumer Reports are two that track that, for those interested.
This is the most plausible explanation for a possible motivation.
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That’s why I change the oil every 3k miles
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Under certain circumstances yes but mostly that's really overkill. I mean there are such great engine oils available that it just seems a total waste.
Or maybe 8-10,000 mile intervals work just fine...like on my K24 Honda with over 100,000 miles in this picture.
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I've heard other speculation that makes sense on this same topic.
That manufacturers also try to avoid specifying synthetic oils, to keep that cost lower.
And that is another motive, beside fuel mileage, for specifying 0W-** oils.
Because any oil needs to have a better base quality, to pass that 0W test.
TBH being an owner of European makes for over 25 years I've never heard of this claim.
Indeed. It's a conspiracy to sell a new car every 10 years or so.
The 0w-20 also gives the best fuel mileage, until the connecting rods try to weld themselves to the crank shaft while the engine is running.
Yeah they're expecting them to last around 10 years.
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It has been well documented that manufacturers "design" around 150k service life so 8-10 years for most. Extended oil change intervals beyond 5k (My limit) , or beyond 10k miles for other WILL get the car out of warranty and still run ok..maybe not great, but decent. I'm talking 15-20k miles with oils from Walmart with 50/50 city/highway driving. You have cars that never get up to temp, fuel diluters, teenager driven....they will last beyond 150k. Will it leak oil? Will it burn oil? Will it have sludge? Maybe, but it will run, THAT IS what they are betting on. Hey, my X -car got only a few oil changes and lasted me 10 years. I'll buy another car X-brand because I trust it will last me 10 years.
My experience: I maintained a 2010 Cobalt 2.2 Ecotech. I only saw the car every 18-25k miles. It went 243k miles before a water pump leak killed it, as I only saw it yearly. It ONLY saw Castrol 0w40, Mobil 1 0w40. It never had timing chain failure that these were known for. Was it 0w40? Could have been why it never had oil related issues. The car always drained 2-3 qts of oil. They never checked it.
My experience: I maintained a 2010 Cobalt 2.2 Ecotech. I only saw the car every 18-25k miles. It went 243k miles before a water pump leak killed it, as I only saw it yearly. It ONLY saw Castrol 0w40, Mobil 1 0w40. It never had timing chain failure that these were known for. Was it 0w40? Could have been why it never had oil related issues. The car always drained 2-3 qts of oil. They never checked it.
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Can you link some of that?
And tiny filters
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Kschachn,
This is what I've seen posted on parts including axles on pallets and transfer cases.
This is not just a Ford thing IE 10yrs/150k. I've seen it on my Old Dodges as well, on Hubs, radiators, I don't think Ford would put the durability testing on parts including replacement axles if that wasn't their target.
Chrysler had it on Fan clutches, AC compressors...
Bob found documentation on GM
I've got a video. The design systems engineer states 150k at 4:21. For Ford F150 engine, the little diesel.
I would like to see/ watch Toyota documentation. I'd think it would be higher than GM/Dodge/Ford...maybe not.
This is what I've seen posted on parts including axles on pallets and transfer cases.
This is not just a Ford thing IE 10yrs/150k. I've seen it on my Old Dodges as well, on Hubs, radiators, I don't think Ford would put the durability testing on parts including replacement axles if that wasn't their target.
Chrysler had it on Fan clutches, AC compressors...
Bob found documentation on GM
I've got a video. The design systems engineer states 150k at 4:21. For Ford F150 engine, the little diesel.
I would like to see/ watch Toyota documentation. I'd think it would be higher than GM/Dodge/Ford...maybe not.
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At least for GM there has been mention of 10 years or 120,000 miles as being what they analyze for:
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