So I was in the tire shop getting my free tire rotation on my 08 F150 today and the manager calls me out to look at an oil leak on my truck. Says the oil pan gasket is leaking and needs replaced for $500. I looked at it on the lift, and yes there was some oil on the side of the pan, right along side the oil filter mount. My truck is garage kept, and I have never had even one drop of oil on the floor nor have I ever seen the oil level low. Could this thing be really leaking oil or is this guy just trying to make a sale?