problem solved ,when they did the oil change before I stored it,they either over poured or spilled onto the side,seems the rookie and not the corvette specialist changed my oil at the dealership,i returned the car to the dealer to look under it,they said oil pan , I said wash and clean the bottom of that oil area and lets see if oil is dripping within a few weeks,i took the car out 2 weeks later not a spot to be found,saved myself maybe 1500 on not listening to their advise.