Rislone 4416 High Mileage Ring Seal Smoke Repair 16 oz. (473ml) – USA IMPORT. The result isreduced smoke, less oil consumption, and extended engine life. ???? Why Choose Rislone 4416?. Rislone 4416 High Mileage Ring Seal Smoke Repair is a premium engine additive designed for vehicles with high mileage and signs of wear.
