concrete cleaning?

[Memphis]

Anyone have a good way to clean oil/grease spots from a concrete driveway? Fairly large spots that I want to clean up and am trying to avoid acidy type cleaners so as to avoid killing the grass along side it. Any suggestions?

[SSmike1]

good question, i need advice on that too!

[wrath]

Powdered Tide and a stiff push broom. Not liquid Tide or any other detergent. It's got to be the original normal powdered Tide, not any of the fancy shit. I prefer the Mountain Spring scent for mixing with gear oil.

I don't know if it works for cleaning clothes as I don't use it for that. But it's cheap and works great for cleaning driveways.

If that doesn't do it, then use Lysol Basin, Tube, and Tile cleaner and a tire brush. Not Scrubbing Bubbles, it doesn't work as good.

And if that doesn't do it, it's time to get out the chlorinated brake cleaner.

[cheap80Z28]

I've had luck just using a power washer, I think mine id either 1500, or 1800 psi

[TransAm12sec]

Pour gas on it right after it spills, for future reference.

[xxsn0blindxx]

While I've never tried it myself, I hear CLR is supposed to work well for cleaning concrete.

[fly5150]

muratic acid. rinse it well and the grass should be ok. thats what I have used in the past.

[Feature Pony]

I've had luck just using a power washer, I think mine id either 1500, or 1800 psi

X2 on this

[Todd Z]

Pour gas then cover with oil dry or kitty litter. The gas will bring the oil to the surface and then is absorbed by the OD or KL. Cleaning with Muratic acid does work very good but will etch the concrete and be dusty for a few days.

[wikked]

Any grease/blood/wine/grass stain remover meant for clothes works great.

I used Zout, and I thought it bleached the concrete at first, but it was just that much cleaner.

[animal]

What about rust stains on concrete? Same treatment?

[wikked]

What about rust stains on concrete? Same treatment?

I'd use CLR.

[1320PNY]

We have some aerosol called High-Tech at work that works well. Kinda stuff that takes paint off of metal and melts plastic though. I can get you a few cans you can try if you like. Our office is in Menomonee Falls (W134 N5373 Campbell Drive). Just call my office phone 262-252-5690 and let me know if you are going to stop.

[Cjburn]

If you use Muriatic acid on concrete, use it VERY diluted. When I did flatwork, we used it as a way to wash off extra relief concrete on stamped concrete. If it's strong enough it will definitely do damage to the surface of the concrete. The cream part of concrete is very thin, and when damaged it will expose the aggregate underneath which isn't very attractive at all. Personally, I would not ever put Muriatic Acid on my white concrete.

[Sprayaway Fox]

Jungle jake mix 50/50 with hot water. Scrub in with a broom. Let sit for about a hour then powerwash or garden hose.

[Memphis]

Couple applications of the tide and a broom, then the hose seemed to do a pretty good job!