Quote:
Originally Posted by finch1750
Do you have data to suport this? The UOA i just did along with others on the board have run engines hard (auto x/track/canyons) and are fine with 7500 intervals. Hell, they told me to run to 9500 next time.
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Maybe but I follow the manual and it says 3500 miles unless you drive like grandma. A UOA doesn't show even 10% of the additives in the oil.