something else that works is hand cleaner, like Fast Orange or Goop. I
had a bug with a busted pushrod cover leak all of it's juices in my folks driveway!
Yikes. After cleaning up the initial mess, i put a few handfulls of Goop
on the spots, scrubbed it in and let it sit for an hour. Repeated once and
the drive was cleaner in that spot than elsewhere.

I haven't tried simple green in this intance, but in general, simple green
does rock.

-matthew

Matthew Pollard             http://www.uidaho.edu/~poll7356
Dept. of Chemistry               http://www.chem.uidaho.edu
University of Idaho                   http://www.uidaho.edu