Mean Green® Auto & Garage is a concentrated, multi-purpose cleaner and degreaser. Specially formulated to remove and dissolve petroleum-based grease, grime, and oil from engines, tools, and concrete, to outdoor furniture, grills, painted surfaces, and more. Mean Green is the #1 Heavy Duty cleaner! Safely Removes Road Grit, Grease & Grime. #1 Heavy Duty Cleaner. Concentrated Formula.