First time posting. Giving my 99 F150 some long overdo maintenance in an attempt to make it reliable for my 18yo son to drive back and forth to school. Just replaced the rear oil pan seal, valve head cover seals, and rear main seal earlier this year. Still leaking oil, though. Tried getting my camera as close as possible to the remaining problem areas. In the photos oil is weeping between the engine block and heads on both driver and passenger sides. I have a suspicion the problem may be failing head gaskets based on a Google search. Maybe Google is wrong and it could indicate something else. Not losing engine coolant, nor is the engine over heating. Is it anything to worry about right away? Would just rather the oil stay in the engine. Apologies if the photos take up too much thread space or aren't sized properly.

 

Have you tried thoroughly cleaning up the engine and monitoring it?

You can also get UV engine oil dye to help pin point it more.