Thanks to everyone for their suggestions. I tried them out on the
other car - a '94 Chevy Lumina sedan, 163000 miles - and the results
were pretty good. Too good, in fact. Now I have 'clean' spots
instead of dirt spots! Didn't realize how much dirt there was to
begin with.
Thanks too to Barbara for sharing her experience with the
inconsiderate grease monkey....
Mark
'01 EV GLS