AMSOIL has a documented history of leadership and innovation First to develop an API-rated 100 percent synthetic motor oil (1972). First U.S. company to utilize the NOACK volatility test as a standard of performance. First to produce synthetic motor oils for diesel engines, racing, turbo and marine engines. First to introduce synthetic oils that legitimately contribute to improving fuel efficiency. First to manufacture synthetic gear lube for automotive use. First to manufacture a 100:1 pre-mix synthetic 2-cycle oil. First to manufacture a synthetic automatic transmission fluid (ATF) for automotive use. First to introduce "nanotechnology" in filtration for auto/light trucks. First to introduce full synthetic media in a diesel cartridge filter. First to introduce the concept of "extended drain intervals" with a recommended 25,000-mile or 1-year drain interval (1972).