AMSOIL INC.
Oil and GasWisconsin, United States501-1000 Employees
AMSOIL INC. develops and markets synthetic lubricant technology designed to protect against wear and maximize performance for cars, trucks, motorcycles, industrial machinery, and other equipment. Its lubricants aim to reduce maintenance needs and improve fuel efficiency for a wide range of users, from individual vehicle owners to demanding fleets and heavy-duty applications such as wind turbines and racing vehicles. The company validates performance through in-house laboratories and extensive field trials in challenging conditions. Headquartered in Superior, Wisconsin, AMSOIL formulates, blends and packages its products in the United States, supported by a network of distribution centers and independent dealers, with availability in more than 80 countries. The business traces its origins to founder Al Amatuzio, who began selling synthetic motor oil in 1968 and achieved a milestone in 1972 when AMSOIL 10W-40 Synthetic Motor Oil met API service requirements, signaling a new era in lubrication science. In 2026, AMSOIL introduced a 0W16 formulation within its Signature series.
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