How to Remove Oil Stains With Cat Litter
The absolute best product for removing oil from concrete is cat litter. Using non-clumping litter, completely cover the spill and work in with a stiff-bristled broom. Let sit for a few minutes and then sweep it up. The cat litter dust pulls the oil from the porous concrete, leaving a clean surface. Even really old oil stains can be removed with cat litter, they just may require a second application. I have seen commercial cleaners available at different home supply stores and most of them look and smell like cat litter, but they cost about ten times as much! There are also some nasty chemicals that you can buy to remove oil stains. These cleaners boast health hazards and claim that they may damage the surface! Stick with something safe and effective, cat litter!
My father always kept a glass Ball jar full of cat litter in the garage just for quick cleanups and spills. Just make sure that you store the cat litter in an air-tight container to keep it fresh! Moisture will cause the litter to lose its ability to absorb liquids.