heres another tip: get a long stick and tape a toothbrush or a straight brush to the end of it for getting the gunk out from impossible to reach places.
one more tip: to make a good engine detail brush, get a run-of-the-mill round brush made for painting, and cut the bristles down to about half. that will have nice stiff bristles able to clean the tightest spots.\
lol i love wal-mart too!!