Oil dry and a broom has always worked for me or cat litter that isn’t clay based even if the spot has been there for a while it still works I cleaned a spot in my driveway after a week with it and it is gone now
With one bit of caution applied full strength and not rinsed off will etch the surface. I had a bottle tip over in a boat and run out the deck drain onto the shop floor and a week later found a dinner plate sized oops on the shop floor.
I’ve been trying to clean up some transmission fluid for about a week. Not a huge spot by any stretch, but after a similar thread I picked up some oil eater. After two applications, there is still a small stain. The picture makes it look worse than it is, but I just cannot get it to disappear. The surrounding area is very clean from a powdered laundry detergent/Dawn slurry. I’ll try some pour and restore next if anybody ever has it in stock.