Quote:
Originally Posted by g21
while it may have been done at the "correct periods", where i live the correct period is 24 months / 18600 miles. that is too long even for a Toyota corolla. the only way that works is if the engine is running at a constant 2500rpm at 10% throttle for 24 months / 18600 miles. once you do start stop, rev it to 6000rpm, make it produce 400hp, etc the oil will no longer go that distance.
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It isn't too long. Manufacturers have been doing this for quite a while now.