Cleaning Concrete

[WHF]

How does one best clean engine oil (the black stuff) from a concrete driveway. Have several spots of about 6 inch diameter.

thanx

 

[RACE427]

Oven Cleaner

Give Easy-Off Oven cleaner a try, it dissolves old grease without a problem.

 

[2-ND TIME]

You could use Gas or Diesel fuel, and scrub it well. Sorry I didn't see where you were at? Failing that you could get some MR. Clean I have been using it for 15 yrs or so to clean my work clothes. Use it full strength and just scrub it very well then again. Don't ask me how I know that it works on concrete that is a sore spot. only 5 liters of used oil.

 

[RDHamill]

might try TSP , which you'll find in a paint supply dept.