How long does gas and oil last in a car???? As I have 5 cars and one Harley ,one of them gets very little use, currently my Gremmy. I filled up the tank last winter and still have half a tank. How much time can I expect the gas to still be good. And what about the oil (quality oil and a good ol' Fram filter) It is under 1K miles but almost 9 months old. Does synthetic oil have better shelf life? And no, I am not gonna change filter brands...Russ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com