Amsoil

Amsoil is an American manufacturer of synthetic lubricants, founded in 1972 by Al Amatuzio in Superior, Wisconsin, where it is still headquartered today. The brand launched the first synthetic motor oil to meet the standards of the American Petroleum Institute. The range includes engine, transmission and differential oils, greases and fuel additives for popular US models from GM, Ford, Chrysler and other North American manufacturers.