If you have over 75,000 miles, you need the superior protection of America's first high mileage Motor Oil. Valvoline High Mileage MaxLife helps extend the life of your vehicle by fighting the four major signs of engine wear - reduced power, loss of fuel economy, oil leaks and increased oil consumption. The synthetic blend formula contains extra additives designed to combat these problems unique to aging cars and trucks. Valvoline High Mileage with Maxlife Technology meets the API SN with SN PLUS specification, protecting gasoline direct injected engines from low-speed pre-ignition.. Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks. Extra wear protection helps prevent future engine wear. Extra detergents help keep older engines cleaner by bonding with and removing sludge and deposits. Anti-oxidants help prevent oil breakdown, preventing engine-clogging sludge and deposit formation.