Amsoil
Since day one, we’ve been on the leading edge of the industry. Our first breakthrough came in 1972 – AMSOIL 10W-40 Synthetic Motor Oil, the result of years of research and inspired by aerospace technology, became the first full synthetic motor oil in the world to meet American Petroleum Institute service requirements. We’ve since remained steadfast in our pursuit of developing products that help you get the most out of your vehicles.
