Oil changes - every 10,000 miles? Even the first??
#46
Lexus Fanatic
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If you really want to see how well oil is doing after 10,000 miles run the engine for the duration without a filter.
#47
Pole Position
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i agree with you...with the 5k intervals, wasn't that based on using conventional/standard oil? if the debate is really 5k vs 10k interval, isn't there a benefit by going with a better quality synthetic oil? if i was using dino oil i would for sure stay on 5k, but with synthetic tech, it lets me sleep at night with a 10k oci
#48
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I am still waiting for an evidence of Mobil1 or other oils stating 10k, 20k, or 25k oil change interval paying a single warranty claim. Maybe you have not noticed, but there is a little (*) next to these claims, go and read the fine print.
#49
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Last edited by BBQapple; 10-06-23 at 03:20 PM.
#50
Pit Crew
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[QUOTE=BBQapple;11591379]You suggesting run it with no filter and the oil sprays out on the ground or a dummy filter with the media removed?
Our cars have cartridge filters, not spin-on filters.
Our cars have cartridge filters, not spin-on filters.
#51
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You will then say to prove it failed because of oil interval and not a bad design or other problem. Right, I dont have a proof for that…. But I have seen enough to make an educated choice of what works for me
#52
#53
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there are plenty of cases engines failing due to excessive wear and owners following manual. I watch broken engine tear downs on youtube, many followed dealer OCI but look slugged and fail due to excessive wear.
You will then say to prove it failed because of oil interval and not a bad design or other problem. Right, I dont have a proof for that…. But I have seen enough to make an educated choice of what works for me
You will then say to prove it failed because of oil interval and not a bad design or other problem. Right, I dont have a proof for that…. But I have seen enough to make an educated choice of what works for me
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Freds430 (10-07-23)
#54
Pit Crew
#55
Intermediate
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I think that most people would agree that even a good quality synthetic would show some signs of degradation after 10k miles. However, what we don't know is how different that would be to 5k miles. Clearly there'd be a difference, but it's the amount of difference that matters, and whether it's meaningful in terms of performance and engine protection. Without knowing that then you just have those saying that 10k is fine as, whilst it obviously degrades over time/usage, it remains within spec to provide the required protection; and those who say it degrades sufficiently after 5k to cause harm.
The only evidence for each side that I'm aware of is that manufactuers, oil producers and oil analysis of good quality synthetics, point to the oil being fine at 10k under normal usage, compared to anecdotal evidence of youtube videos showing sludged up or failed engines, that don't have a history of the usage, OCIs, type of oil used, or even if it was filled to the correct levels.
Now, it may be true that an engine will fail with 10k intervals, where one with 5k changes won't, but without any meaaningful evidence to support it, then 5k changes to me are a bit like Pascal's wager for oii, in that the cost of believing it's true is outweighed by the potential cost of not believing. I suppose that's fair enough perspective, which I can understand if it gives people peace of mind, even though I remain "agnostic" on the matter.
#56
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Fl
Now, it may be true that an engine will fail with 10k intervals, where one with 5k changes won't, but without any meaaningful evidence to support it, then 5k changes to me are a bit like Pascal's wager for oii, in that the cost of believing it's true is outweighed by the potential cost of not believing. I suppose that's fair enough perspective, which I can understand if it gives people peace of mind, even though I remain "agnostic" on the matter.
Now, it may be true that an engine will fail with 10k intervals, where one with 5k changes won't, but without any meaaningful evidence to support it, then 5k changes to me are a bit like Pascal's wager for oii, in that the cost of believing it's true is outweighed by the potential cost of not believing. I suppose that's fair enough perspective, which I can understand if it gives people peace of mind, even though I remain "agnostic" on the matter.
As it was explained before, it all depends on individual driving patterns, highway, idling, cold starts in freezing temp and etc. Invest time into oil testing and seeing if you qualify for severe service or not. This is all just speculation if you have no data that is specific to your usage.
#57
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I liked the old BMW system where the computer would count fuel injector cycles to determine when next oil change is due. So a hard use or lots of idling person would be recommended more frequent changes.
#58
Intermediate
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I found it's funny that a lot of people here who is debating about 500mile, 1k, 2k 3k, 5k, 7.5k or 10k miles oil-change interval while they driving like 2000 miles per year LOL.
My 19ES is now at 70K miles and I did my first oil change at around 9K, after that it is mostly 7.5K but sometimes 9K -10K too.
No oil burn yet, oil is always as clean as when I first got it at 15 mile on odometer whenever I check the dipstick (I check it weekly on Sunday), I'll let you guys know if there any issues soon![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
My 19ES is now at 70K miles and I did my first oil change at around 9K, after that it is mostly 7.5K but sometimes 9K -10K too.
No oil burn yet, oil is always as clean as when I first got it at 15 mile on odometer whenever I check the dipstick (I check it weekly on Sunday), I'll let you guys know if there any issues soon
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Freds430 (10-07-23)
#59
Pit Crew
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I found it's funny that a lot of people here who is debating about 500mile, 1k, 2k 3k, 5k, 7.5k or 10k miles oil-change interval while they driving like 2000 miles per year LOL.
My 19ES is now at 70K miles and I did my first oil change at around 9K, after that it is mostly 7.5K but sometimes 9K -10K too.
No oil burn yet, oil is always as clean as when I first got it at 15 mile on odometer whenever I check the dipstick (I check it weekly on Sunday), I'll let you guys know if there any issues soon![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
My 19ES is now at 70K miles and I did my first oil change at around 9K, after that it is mostly 7.5K but sometimes 9K -10K too.
No oil burn yet, oil is always as clean as when I first got it at 15 mile on odometer whenever I check the dipstick (I check it weekly on Sunday), I'll let you guys know if there any issues soon
![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
Your oil is as clean at 10k miles as it was when new? How are you checking the cleanliness of your oil?
#60
Intermediate
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I visually check my oil weekly and I DYI sometimes (once at around 35K and once at ~60K) so I can inspect the overall undercarriage and suspension myself, I let a dealer do it mostly. I don't see anything crazy like color change or dirtiness, no oil burn whatsoever, YET.... to me that's pretty good.