1972... First to develop an API rated 100% synthetic motor oil. AMSOIL revolutionized the industry with the first synthetic motor oil in the world to pass API standards for passenger vehicles.
1972... First to introduce the concept of "extended drain intervals" with a recommended 25,000 mile/12-month drain interval. And AMSOIL backed it's customers with a Warranty.
1973... First to manufacture a 100:1 pre-mix synthetic 2-cycle oil. AMSOIL introduced the first synthetic 100-1 2-cycle oil. AMSOIL Synthetic 2-Cycle Oil shattered the industry's standards with its economical mix ratio.
1974... First to manufacture synthetic gear lube for automotive use. AMSOIL introduced the world's first synthetic gear lube for general automotive use. Porviding customers long lasting wear protection and fuel economy.
1976... AMSOIL formulated a multi-purpose grease with a new synthetic base. The synthetic grease was a breakthrough for AMSOIL and for the industry.
1979... First to produce synthetic motor oils for diesel engines and marine engines. AMSOIL introduced the first synthetic multigrade diesel oil.
1980... First to manufacture a synthetic automatic transmission oil for automotive use. AMSOIL introduced the world's first synthetic automatic transmission fluid for general automotive use. Most oil companies still have not developed one.
1982... AMSOIL developed an oil filter that set new standards for motor oil filtration. By removing virtually all wear-causing contaminants to 1/10th micron, the AMSOIL By-Pass Oil Filter helps engines last longer and require fewer repairs over their service life.
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