Quote:
Originally Posted by Lil bastard
As Bruce says, there is great variation between these individual engines.
Not only that, but you're making your case on an assumed linearity of the results, which is probably not the case.
Your oil may look fine at 11k, and be all in by say 13k (or any mileage really).
You'd have to sample the oil at regular intervals to be certain, and even then because the hrs. on the engine increase thru the testing, it could be the asociated wear and not the oil which is causing the effect.
Don't worry... be Happy! If you're not worried going 11k+ on your oil, that's great! I don't think I'd share the same feeling for my car.
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Good post. Moreover, the cost of testing could be put towards the cost of fresh oil!