AMSOIL extended-drain synthetic motor oils provide reserve protection, allowing you to go longer between oil changes if you choose. They deliver peace of mind so you can fit maintenance into your schedule. Some drivers want to follow the oil-change frequency outlined in their vehicle owner’s manual. Others choose AMSOIL products for the comfort of knowing their vehicle is protected should maintenance be delayed, or for the convenience of a once- or twice-a-year oil change.
Extend oil drains by 100 miles or thousands. The choice is yours. AMSOIL Signature Series Synthetic Motor Oil and XL Synthetic Motor Oil deliver guaranteed protection for up to 25,000 miles/12 months (15,000 miles/12 months in severe service) and 12,000 miles/12 months, respectively.