Guys, it is not a mechical question, I already know the problem but this is quite puzzling...

I have leaky main seals. It leaks a couple of drops of oil every time I turn it off. Okay, However it only happen when I park outside but not in my garage where I usually park. In the garage, I park over a carpeted area (yeah, my Bonnie'* spoiled), I look for traces of oil there but NADA but when I park it outsidde, I can see the fresh oil puddles (mini puddles) WTF?

Thoughts? My inital theory was thermal differences but it was defeated because the garage is warmer than outside which should make the oil stay runnier longer thus leak more but it doesn't work that way

put cardboard over the carpet for a few days and report back... im begging the fluid is soaking into the carpet to make it visually non-existant

Great idea Andrew! If the driveway was sloped at all, would that make a difference?

It'* tan carpet...but okay, I'll do that.

I was thinking the same thing Andrew said while reading your post. It'* worth a shot.

how do you know its the main seal? Sure its not the oil pan?..I was loosing mad amounts of oil from the valve cover gaskets...