How do I remove an OLD oil stain from concrete?

[fjmeat]

I recently sold my oil-leaking pickup truck. It has been leaking oil in the driveway overnight for over a year. The puddle of oil is about the size of two basketballs side by side. I've tried pour-n-restore and it seemed to help only little bit. The stain is still there and now the HOA is on my butt to get it removed. I've even had a pressure washing service try to bleach it out. No luck with that either. The oil is stain is very old therefore the oil is deeply embedded into the concrete. Anyone know of a suggestion or home-remedy I can try? All comments welcome.

 

[NuclearNed]

muriatic acid

 

[Saint Nick]

I actually have used laundry detergent with great success.

 

[NuclearNed]

This is like Jeopardy. We post the answers, then the OP posts the question.

 

[highland145]

This is like Jeopardy. We post the answers, then the OP posts the question.

 

[SunnyD]

You're about 2 years too late to the party, OP.

Super duper obligatory:

Link

and

Link

 

[highland145]

You're about 2 years too late to the party, OP.

Super duper obligatory:

Link

and

Link

Love those.

 

[MotionMan]

MotionMan

 

[zerocool84]

Gasoline or nuke from orbit

 

[MotionMan]

Gasoline

and a match?

MotionMan

 

[MotionMan]

OP, can you paint it concrete-colored?

MotionMan

 

[nboy22]

carb cleaner. I got a bunch of oil all over my patio from both cooking and working on motors. Spray a bunch of carb cleaner on the ground, start scraping at it with a strong wire brush. The concrete came out sometimes looking better than new.

 

[dr150]

Spit

 

[foghorn67]

Kitty litter. The cheap kind that doesn't clump when wet.
Spread over stain. Be liberal about it. You want it layered on there, not just covering it. Use your feet to grind it in to the concrete. Like John Travolta doing the twist.
It goes away in a matter of days.
If the weather takes it out overnight, repeat process.

 

[chubbyfatazn]

Semen

 

[coldmeat]

Semen

I can sell the OP some of mine for no more that $25 a gallon.

 

[Shawn]

Replace cement.

 

[fjmeat]

Thanks for the tips. I'll try kitty-litter; carb cleaner; gasoline; and semen. In that order. Concrete colored paint eh? :hmm:

 

[chubbyfatazn]

I can sell the OP some of mine for no more that $25 a gallon.

Psh, I'll sell to the OP for $15. I've got 7 gallons of the stuff stockpiled for a rainy day like this.

 

[MasterAndCommander]

I've had good success with this stuff:
http://www.amazon.com/Oil-Eater-AOD1...2905131&sr=8-1

but I got it cheaper at Costco.

I had a couple of old cars leak oil and power steering fluid on my driveway and my HOA was on my butt. I tried pressure washing, oil eating enzyme solutions, bleach, muriatic acid, purple degreaser stuff from the auto parts store, and some sort of citrus paste to no avail. This was the only thing that got the stains out. It took several applications of spraying and brushing but it did do the trick.

 

[Zebo]

Dish Soap, wire brush, water and pressure washer. acid will just eat concrete with little effect on oil. (that's why they store acid in oil based plastic containers)