Driveway cleaner
Paint thinner
NEW Cat litter
To clean greasy stains from a tar driveway, pour paint thinner on the spots
(and around the stains), Spread a thick layer of Litter over the area, let sit 2 hours.
Sweep up the soiled litter with a strong (stiff Bristled) push broom.
Repeat as necessary.
Hubby worked on an aircraft carrier – they just dump down clay litter and do the Twist on top of it until the litter is fine sand. No more oil! We use this in our concrete garage.