our driveway is covered with oil from a leaky pick up truck, tried pressure washing and muriatic acid?

Question

Neither of the previous worked , any ideas would be appreciated

Answer 1

spreading cat litter and grinding it under foot into a fine dust will help soak up anything that wicks to the surface of the concrete. with the heat of summer you may actually get quite a bit of it out over time.

The problem is that the oil/grease has penetrated into the pores in the concrete and will be a major pain to remove, try scrubbing/soaking with Dawn dish detergent (used to clean crude oil off of wildlife) it is an exceptional degreaser, but you will likely need some sort of industrial grade concrete cleaner to truly get it clean. Muriatic acid will do more to eat away at the concrete than attack the grease.

Answer 2

Presume the oil is now dried in and sticky?
Try a good concentrated wash-up liquid.
If you can get Ammonia in the US, get that. It is a very potent chemical, I doubt the US laws will let people sell it. If you do get it, wear gloves, DO NOT breathe the fumes (I know this is always stated on products nut Ammonia is particularly potent and dangerous)
You could also try burning it with a blow-lamp, but that may just bake it in and become harder to shift. In fact, don't do that.
Also, a bit more expensive, there are products for getting tar and oil off the front of cars. This will work.
Finally, If you can do it, turn the affected flags/stones of your driveway the other way up.

Answer 3

Try a little gas on the oil to float it out of the concrete. Kitty litter is then used to soak up the oil and gas. Lite rubbing with broom on gas helps lift oil. Do in small areas. Works for me .

Answer 4

Try spreading cat litter over the top of the driveway. Let oil soak in and sweep

Answer 5

if pressure washing wont bring it out then it is stained so you should try some orange cleaner, if that dont work maybe paint over it with a driveway sealant. its not hurting anything other than being a big stain.

Answer 6

you can also try, after the kitty litter, Comet cleanser....wet the stains, pour cleanser on them, let it set (for a min or two, not dry) and use a broom to brush the stain..then rinse..it might not get all the stain out, but they WILL fade quite a bit. (goo gone or orange cleaner doesn't work on cement)

Answer 7

http://www.pour-n-restore.com/
Works really well at lifting out the oil----you can get it at hardware stores or online.