Professional Main Seal Motor Oil Leak Repair, No. MS-1

The Bar's Leaks Professional Main Seal Motor Oil Leak Repair, No. MS-1, is a high-tech synthetic blend of the seal restorer additives and polymers designed to stop all engine oil leaks. A specially engineered seal-rejuvenating additive restores seal size, flexibility and elasticity lost due to engine heat, age and high mileage. In addition, an advanced seal polymer additive package works by building a polymeric film around the seal to help prevent excess oil from bypassing the seal during normal engine operation. Bar’s Leaks Main Seal Motor Oil Leak Repair is safe to use in all gasoline, diesel, turbocharged and racing engines. It works with all types of motor oil, including regular petroleum, high mileage, synthetic blends and fully synthetic. One quart bottle treats oil capacity from 5 to 7 quarts, and can easily replace a quart of oil when needed or during an oil change.