I have a tank full of race gas. The gas is now 6 mos. old. My next event isn't foe 2 or 3 months. May I give this stuff to a friend with a very hot street car, a camaro with a 502 crate V8? Or for that matter any street car with no cat?? Could I leave it in and race with old gas? Steve Sent via BlackBerry from T-Mobile