odd question, i didnt really see anything related in the search. i have noticed that there is oil leaking from under my car. sometimes. it seems off and on, but we looked at it and looks either from the rear main, or the pan gasket. but this morning, there was a decent amount of oil from under my car left after it being parked for a couple hours. but its been parked for a while now after driving it a bit, and no oil spot. not even a drip. any ideas? i feel at a loss here, and i have no money to take it into the dealer.