Spray with oven cleaner then sprinkle on cat litter and cover with plastic sheeting. (02/17/2005)
Home Depot and other home improvement stores have a chemical called TSP (it stands for something - I just don't know the chemical name!). It's in the paint section in a box if I remember correctly. Just sprinkle it on, scrub it away with a brush and voila - it's gone! We also used this to remove Thompson's water seal on a fiberglass porch because it made it too slippery and it worked great! (02/17/2005)
Try kitty litter - I know it will get car oil up off garage floors. (02/17/2005)
I've used kitty litter, and oven cleaner to no avail. The grease has sunken into the cement. I will try to the trisodium phosphate TSP. For years I've heard that it's an effective cleaner. Anyone else have a good solution?
I have heard that WD-40 will work, though I have never tried it. (02/18/2005)
My husband uses spray on brake & parts cleaner for things like oil, grease, paint that have soaked in to the concrete. He brushes it after it sits a while (protect eyes) & uses pressure washer to wash it off. A brush & water hose should be effective also. Rinse very well or scrub w/ soap & water after. Good Luck. (02/24/2005)
Spirit of Salts! (07/22/2007)
Wipe up the excess with a paper towel, then spray WD-40 on it. Let the WD-40 sit for 5 minutes, then wipe it off. Then spray it with 409 to remove the WD-40. Wipe the 409 up and either let it dry or rinse it. It works for me. If the grease or oil is old and dry; you will need to chip it down to the concrete's surface. (10/07/2007)
Old stains from oil leakage is best removed with TSP in a 10:90 ratio with H2O. Allow solution to stand 5 minutes, then use hard bristle brush to assist the cleaning action.
Wash away the wet wash with garden hose or pressure washer. (01/14/2008)
By Rich R
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