schawa1

Ok I need some advice, I have a 2010 F150 that I bought new with 18 miles on it. It has the 4.6L V8 with a tow package but I have never towed anything. The motor has never ever overheated and it has been serviced regularly since new. The truck just turned 95,000 miles and I took it in for new plugs, Oil the basic 100K tune up and we found Oil in the reservoir tank. At first I was told that its a head gasket and I agreed but the more that I think about it I'm not so sure. The truck runs like a top with no miss in the motor. The engine is strong and No white smoke at all. No water in the oil either. I can drive it right now with no problems. So before I invest in a head gasket I wanted to know if anyone has had a similar problem. Could it be a crack in the Oil cooler or something like that? Any advice would be much appreciated.