The stuff y'all are metioning is nice, but for the best result with least work, hit the grocery store, fetch a 2 liter of cola, and slowly pour said pop on your stain. Some magic in the cola will eat the oil and with sun and a bit of rain, the whole thing is gone in a few days.

__________________
clay

2002 s430 - Victor, a Stately & well tailored chap
1974 450sl - Frosch - Two tone green
1986 SDL - Polei

retired models-
1976 300D - Blei Vanst - it looks silvery
1972 220D - Gump - She was green, simple and ran
1995 E300D - Gave her life to save me against a Dame in a SUV
POS 1987 SDL - Beware Nigerian Scammers