Gator Clean XP Oil and Grease Remover easily removes tough stains such as motor oil, cooking oil & grease. Just shake the bottle, spread it on the stain, let it dry, and sweep it up. Use it on concrete, brick and stone. Not recommended for synthetic oil stains. Gator Clean XP Oil and Grease Remover is biodegradable and phosphate-free. Shake it, Spread it (let it dry), Sweep it!