EXPLAINED: The Difference Between Summer and Winter Gas Summer has its benefits: Fishing season. Dirt-track racing. Wrenching in the garage with the door open and the tunes blaring. Another benefit is a slight fuel-economy boost. That’s because refiners alter their
Save Every Drop of Horsepower with UPPER CYLINDER LUBRICANT
AMSOIL UPPER CYLINDER LUBRICANT: Preserves Horsepower; Performance New as of October 2019: AMSOIL Upper Cylinder Lubricant (UCL) is the latest addition to the gasoline additive lineup. It delivers more lubricity than the competition and battles ethanol-related corrosion. Upper cylinders are