A couple of nights ago, just as I was ready to quit and hop in bed (naturally), I had a massive oil spill in a corner of my garage/shop.
Somehow I snagged the little drain plug of a plastic oil change container and before I noticed and got it stopped, I had probably a quart or two ...maybe more, of black oil spread out over a 4ft square area.
Fortunately I had a large bag of Oil Dri on hand, and with it and a piece of plexiglass used as a squeegee I got it contained and soaked up.
After cleaning up all the liquid soaked clay granules, I left a fresh layer of Oil Dri on overnight and next day removed that, and then scrubbed over the area with Gunk engine cleaner. Then I cleaned up the Gunk with Simple Green, followed by hot water to dilute/remove the Simple Green.
The area still appears as a stain, darker than the surrounding concrete, but that's probably the best I'm going to do appearance wise.
The problem now is the odor of that Gunk. ...a strong kerosiney, gasoliney smell.
Anybody have any good suggestions for ridding the odor?
For that matter, I'd be interesting in hearing of other, better approaches than what I did.