Driveway Grease & Oil Stains Remover

[sswilson]

CLR and a brush on both concrete and asphalt. Do not use petroleum based cleaner on asphalt unless you want a hole after a while. Once parked on angled asphalt driveway and blew a fuel pump. Lost 1/4 tank of fuel and the driveway.

[djbmsu]

Grease Lightning" sold at Lowes or HD

[TdogKing]

You'll remove 85% of the stain on concrete but unless it had a sealer on it that's as good as you'll get.

[frankdamp]

Although it doesn't actually "remove" the stain, Muriatic Acid on concrete will bleach out the stain and make it invisible. It's my understanding that once the petroleum product has penetrated the pores of the concrete, it's impossible to remove.

[Roosters 67]

I have found a easy way! I would not use it on asphault however will work good on concrete. You will use clay based kitty litter, lacquer thinner, black heavy trash bag and something to weight the bag down.

The process is to put light coat of kitty litter over spilled area approximately 1/4" to 1/2" thick, follow by wetting the kitty litter with the lacquer thinner, cover with black heavy"contractor type trash bags, weight down edges with some kind of weights. wait a few hours. sweep kitty litter aside and check stain. repeat as necessary. works better in bright sun or warm temps. Learned that one many years ago from an old mechanic.
Good luck, Spence.

[chboone]

Have used powdered Tide, works great. Could try Simple Green full strength, it may work. Be careful what you put on the asphalt. Be careful with the acid on concrete, it will etch it.

Chuck