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Tips

Oil Stains on Cocrete

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I've used "Pour and Restore" with decent success. Proper application is important, and many applications may be needed.

It was a while ago that I used it, and I'm not sure if it completely removed stains. But it definitely lightened the stain and removed oil to the point that water was no longer beading. (I used it to remove oil drops in the driveway, where aesthetics was the objective; also to remove oil stains in the garage in preparation for floor painting, where elimination of beading was the objective.)
 
Haven't tried this myself and it sounds kind of nasty but here goes: Make a poultice of speedi-dry or kitty litter and your favorite industrial solvent, acetone, MEK, etc and paste it on the stain. quickly cover it with aluminum foil taped down and let it set for an hour or so. Let me know if it works.
Tom
 
Concrete is porous and the oil actually runs through the material. We use a mixture of heavy duty soap and let if soak through then power was. The problem is this will make the one small area clean and the rest look bad. So be prepared to clean entire area.
 
Popeye- I power washed with several citrus detergents. Got hold of some pour-n-restore yesterday and it did a pretty good job on first application. I'll hit it again today and power wash again tomorrow. 40 year old concrete that salt drippings have eaten the sand topping off and is quite porous. It'll never come completely clean but it'll look better. And yepper Cap'n- I washed the entire floor!
Slopped 0-20W from the drain pan while working on the Mazda. That stuff is the consistency of water! My first time changing the oil on this; the dealer did the first year. Undertray had 3 one-time use plastic pins and two metal screws. I replaced the plastic pins w/self tapping screws.
 
I have used cat litter or oil dry to get the spots up. Pour the litter/dry over and around the spot and take a clean brick and scrub the area with the brick until you get a fine powder, sweep and the spot is usually gone. Coca Cola used to get them up, but I think with the newer synthetic oils, does not work like it used to. Learned the brick thing, from another old car guy. And brake clean.
 
I've used Pore & Restore with excellent success. Pore it on the stain and let it set overnight, it must be completely dry and sweep it up. :encouragement:
 
Simple Green seems to work for me.

I just pour some on the stain then let it sit for a while then spray some water on it and scrub it.

David
 
I have always used a DIY 50/50 mixture of Kerosene or mineral spirits and cheap, liquid laundry detergent. Stir the two together until they form a white looking emulsion. Pour that onto the oil/grease spots and work it into the surface with a stiff brush. Apply more of the mix so the surface is completely wet and let it sit for a decent amount of time (an hour or so, not minutes). Then wash off the mix. As stated earlier, oil can wick deeply into concrete so more than one application and/or longer soaking times may be required.
 
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