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I switched to straight Ams in my previous suburban. Once. Using the recommended weight my fuel mileage decreased slightly and the engine started burning more oil than it previously had. I think I changed at 7500 miles and I had added 4 quarts in that time.
I switched to straight Ams in my previous suburban. Once.
Using the recommended weight my fuel mileage decreased slightly and the engine started burning more oil than it previously had. I think I changed at 7500 miles and I had added 4 quarts in that time.
