I finally have a garage to put my cars in. Now I see oil and other unidentified fluids on the ground. The guy previously was a poor persons mechanic (and a sloppy one). Some of the fluids I see are oil, brake, grease, you name it. I need a solution for removal of said spills. The stains will remain I know, but I need to get as much of this stuff up as I can. Are there any products that will work?