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Advance Auto Parts offers the Permatex Fast Orange Grease X Mechanic's 40-oz. Laundry Detergent for $12.99. Redeem this mail-in rebate to cut that to $0. With free shipping, that's the lowest price we could find by $20. It's designed to eliminate most automotive stains such as fuel, oil, and grease, and claims to help repel future stains. Deal ends September 15.