How can I remove engine oil from mono blocking on driveway?
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Get a can of Gunk from Halfords and apply liberally, do it twice if the stain is bad. An alternative is caustic soda this works well too.
Brake cleaner is cheap and works great.
try using muratic acid
If Dry way is concrete you have that till ever. to decries visibility put dry sand on top two three times.
If is asphalt only apply sand and sweep .
First I would have recommend buying and scrubbing with MURATIC ACID from like a local paint store. Also I would recommend you research and be extra careful when using Muratic Acid to protect your hands with heavy duty gloves (that you might need to toss if the acid were to damage), eye protection from goggles or safety googles as well as wearing old clothes. If that doesn't work, I would personally recommend you renting a commerical grade gasoline powered pressure washer (again you might try commercial paint stores) that professional painters get all their supplies and paints from bec the pressure is so POWERFUL if not used carefully moving the tip side-to-side, it can rip the surface just like a sandblaster esp on paint. Believe me I once let my 11 year old son handle it on our asphalt driveway to remove grease and guess what? After it dried, you could see how the stroke marks but luckily once we painted the asphalt with coal based sealer over the entire driveway it covered the blemish from the pressure washer being so powerful. Good Luck!
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