Fuel oil spill

I hope I have the right section for my post. I own a home that my daughter and her family is/was renting from me until they were displaced due to a house fire in November. The fire was knocked down quickly but the smoke damage was incredible. The restoration people are working in the house and are about to put up new drywall, and the man working on it this week called his boss who then called me. He told me there was an oil spill from the oil tank and I told him I would go up and see the problem. The fuel DID somehow escape from the tank and was on the floor in the basement. It wasn't a lot of oil and it looked like it didn't get into the floor drain, so I sopped up what I could with rags. My question is, after all that explanation, is what is the proper way to clean that floor? Should I be using some sort of cleaner, like mineral spirits or something similar? Thank you.

 

While you "sopped up what you could", I'd try again. Make certain you don't rub hard which pushes the oil into the concrete. Use a concentrated cleaner directly on the stain. Then, scrub with a brush to clean. It will likely take more than one attempt.

 

Get a degreaser or at least use Dawn dish soap.