AMSOIL FORMULATES A WIDE SELECTION OF SYNTHETIC LUBRICATING OILS for all types of engine and gear applications, including those for specialized vehicles and severe operating conditions. In addition, AMSOIL has developed sophisticated fuel additives, filtration systems and other companion products that supplement and extend lubricant performance.
This complete line of quality products is recognized by countless private motorists, fleet managers and industrial administrators as the best and most cost-effective choice for increasing engine performance, reducing maintenance and prolonging vehicle and equipment life.

Synthetic lubricants are superior to conventional petroleum lubricants. Petroleum lubes are refined from crude oil, a natural substance pumped from the earth and containing diverse chemicals. Some of the chemicals in petroleum oil are detrimental to the lubrication process and to the lubricated components. For example, some petroleum oil chemicals invite oxidation in hightemperature operation. Oxidation quickly destroys lubricant integrity.
Synthetic lubes, on the other hand, are not refined from crude oil, but constructed from pure chemicals selected for their ability to lubricate. The purity of synthetic lubricant base stocks significantly reduces lubricant oxidation, which promotes the ability of synthetics to be used in higher-temperature applications than conventional lubes may be and promotes their ability to be used for extended drain intervals. In fact, AMSOIL synthetic lubricants are specifically formulated for extended drain intervals.
Synthetics are also free of the paraffins found in conventional petroleum oils. With no paraffin to congeal at low temperatures, synthetics maintain better low-temperature fluidity than petroleum oils, which protects equipment operating in cold environments — even the relative cold of a just-started engine.
The precise blend of synthetic base stocks and high-quality additives promotes superior lubrication and friction reduction, which in turn promotes superior heat control, wear control and energy efficiency. Molecular uniformity also helps synthetics maintain their protective viscosity in high-temperature operations, which also promotes superior wear control.