Look for the highest wet spot, after doing a thorough cleanup. Oil doesn't leak uphill! I've seen fuel pumps leak through the small pressure vent hole in the casting near the operating rod, but only at highway speed. There's not enough air volume or speed when parked to siphon oil out of the hole!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!