Quote:
Originally Posted by regal
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.
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You must be referring to the Severe Schedule. My maintenance manual says for Normal driving to change the oil and filter every 7,500 miles.
Severe
Repeated short distance driving; driving in extremely cold weather, replace
every 3,750 miles or 3 and 3/4 months, whichever occurs first