Lifetime Supporting Member
I swore I'd never bring the subject of oil up again, but I can't resist. I just have a simple question. Right now, my '08 Bullitt has a crankcase full of 5W30 in it. The question is: Will this hurt the car? I don't drive like a maniac (too much :lol: ) and the last thing I want is engine damage... should I change it to 5W20 or not? And Junior, keep quiet!