I keep reading about people dripping oil on the driveway be it from leaks or fluid changes. My solution was to buy a mortar mixing palet from Focus diy, they are 3ft x 3ft and 4inches deep it slides between the wheels no problem and catches everything, ok if your working under there you may have to move it around a little but it catches the oil or water that runs down cross members and other obsticles. and if you have a leak your not going to fix just yet just slide it under and protect the drive or garage floor. I think it cost me about £8. good luck. Beni