Three Tiers of AMSOIL Quality
AMSOIL XL Synthetic Motor Oil provides better wear control, improved high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oil provides superior performance for up to 10,000 miles/six months, or longer when recommended in owners’ manuals or indicated by electronic oil life monitoring systems.
AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Combining the industry-premier synthetic technology with AMSOIL premium additives, AMSOIL Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines, withstanding the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils and delivers long-lasting performance and protection for up to 25,000-mile/one-year drain intervals.