Safe Zone Msp
Member
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- E34 530IT, econocar
I recently changed my oil and decided to go with castrol high mileage. Idiotic mistake, I shouldve just poured it out on the lawn and driven another 3k on the old oil. My gas mileage dropped from a fairly consistant 32 mpg down to 26 at the lowest. Needless to say I changed back to synthetic, and my mpg immediately went back to 32. Whoops, that mistake will not be made again, but its just an fyi for yall.
Thad
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