Wouldn't it be nice if we knew if your survey was asking the interval for conventional oil or synthetic oil?
Try to use 600 miles / quart of oil. Ie 15 quart oil change 9000 mi interval
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Wouldn't it be nice if we knew if your survey was asking the interval for conventional oil or synthetic oil?
Try to use 600 miles / quart of oil. Ie 15 quart oil change 9000 mi interval