On my 300SDL, I can see oil at the oil level sender. Then I also noticed oil collecting at the bottom of the pan. BUT I couldn't see any path of oil from the sender to the bottom of the pan. So I wiped off everything really well, drove about 25 miles, again see oil at pan bottom. But, the perimeter of the pan seems clean. It seems like it has to be coming from the sender, but I'm confused as to why I can't trace the oil.

Can a path of leaking oil be so slight as to be hard to detect? Any other thoughts? I'm assuming there's no realistic possibility of oil weeping THROUGH a 26 year old pan.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife