To clean old grease from concrete, saturate first with paint thinner or engine degreaser, then use the kitty litter or corn starch treatment. Sprinkle corn starch or kitty litter over the area and sweep up after the oil is absorbed.
By Monica from Cortez, CO
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Clean oil stains from a concrete drive or garage by covering with mineral spirits and allowing to soak for thirty minutes to one hour. Scrub with a stiff brush, adding more mineral spirits if necessary.
