Whats the best thing to put down under my car to catch oil and other fluids my car may leak out ? The RV area on the side of our house is finally finished so I'm going to be moving my Mustang there. The only thing is I need to make sure that the cement stays relativly clean. No oil stains and such. I need to make sure what ever I put down stays put because there tends to be some serious wind around here at different times of the year.