1St-Synthetics.com
About 1St-Synthetics.com
Innovation and Leadership AMSOIL has a documented history of innovation and leadership. In 1972, AMSOIL introduced the first American Petroleum Institute rated 100% synthetic motor oil for automotive applications. AMSOIL was the first to introduce a concept of "extended drain intervals" with a recommended 25,000-mile / 12-month drain interval. AMSOIL Synthetic lubricant technology has been field tested over the last 35 years in the most severe driving conditions.
