CAUTION: THIS IS NOT HOW TO CLEAN THE FLOOR . many ,many years ago i saw an older guy scrub oil stained floor with gasoline and stiff broom then wash the gas/oil away with water (the oil/gas floats away). it scared me when I thought about one spark from air compressor or anything could cause fire and I left, next time I saw his floor it was really clean but his driveway was oily nasty mess. I'll bet you could wet the floor everywhere that was not stained (so it doesnt spread)and use mineral spirits like bronze bird said and catch the mess with rags.Please don't just let the mess run out on the ground. let me know if you try it and it works.I rather not know if you catch fire or pass out from dangerous fumes,I have hard enough time sleeping now the bird keeps me up at night