The first professional grade mechanic's laundry detergent with a built in pre-treater specifically formulated to remove up to 99% of automotive stains and odors. In addition, its proprietary soil release antistatic agent actually helps repel future soils - all while keeping your washer clear of residual grease. For stains and heavy soils, pretreat by pouring a small amount of detergent directly onto the stained area of clothing and allow product to penetrate prior to washing.