Will DC "invalidate warranty" if I change my oil?
This is the first new car that I have had in some time. I usually buy used but I fell in love with a little red turbo. Anyhow, I want to run syhthetic oil because of good results I have had in the past. If I take the car in for service and say "don't do the oil, I have already changed it", what will the response be?
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