Specially formulated for muscle, showroom, classic and trophy cars without catalytic converters Manufactured with top-quality paraffinic base oils and fortified with a unique additive package containing high levels of zinc, molybdenum, and phosphorous for maximum protection Good cold temperature properties and withstands high operating temperatures Unique formula includes rust and corrosion protection Compatible with methanol and all racing fuels as well as synthetic and non-synthetic oils Backward compatible with all old and new engines using Ultra Low Sulfur Diesel