ASUKI® DOWNFORCE ダウンフォース 15W40 is an all-weather, all-purpose engine oil for gasoline engines of passenger cars and commercial vehicles, equipped with turbochargers and multivalve trains. ASUKI® DOWNFORCE ダウンフォース 5W40 is fortified with ASUKI®’s signature NANO Technology that possess excellent lubrication characteristics, while the anti-wear additives package provides outstanding protection of engine parts under high loads and in extreme operating temperatures. Due to its enhanced detergency characteristics, ASUKI® DOWNFORCE ダウンフォース 15W40 maintains cleanliness of engine parts, provides maximized engine durability and increases the service interval of vehicle.