The first professional grade mechanics 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.