Joe Gibbs Driven Racing Oil 01506 HR-4 10W-30 Synthetic Hot Rod Oil - 1 Quart Bottle It has synthetic high zinc and high performance motor oil Protects against rust and corrosion while your car is in storage; modern ethanol blended fuels can draw moisture into an engine, which can lead to rust and corrosion, Joe Gibbs hot rod oils prevent that from occurring Higher levels of zinc anti-wear to protect older style push-rod and flat tappet engines Synthetic formula provides improved cold-start protection compared to conventional oils, which reduces engine wear Designed for Hot Rods, Classic Cars and Historic Racers