In my experience a full tank will last a couple years anyway, but less than full won't last as well. It seems with room for evaporation the fuel will tend to go bad. Ken Quoting mail@xxxxxxxxxxxx: > 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 > > > >