AMSOIL Formulates a Wide Selection of Synthetic Lubricating Oils for all types of engine and gear applications. AMSOIL Synthetic Motor Oils and lubes are Made in America. Amsoil Inc. is determined to continue to set the bar high for the lubrication industry across the board, including with regards to environmental responsibilities. Our long-standing quality products lead the way to a greener, healthier planet for all. Fewer Oil Changes equals less used oil waste.

In 1972 AMSOIL developed the first synthetic motor oil in the world to meet American Petroleum Institute service requirements. Currently, the AMSOIL product line includes the finest quality synthetic motor oils, synthetic diesel oils, Synthetic Motorcycle Oils, gear lubes, synthetic greases, industrial lubricants, oil filters, air filters and automotive performance products.

Improved Performance

More Power The smooth molecular structures of AMSOIL synthetic motor oils create less intrafluid friction than the relatively rough molecular structures of conventional motor oils, while their high film strengths reduce metal-to-metal friction. Engines running AMSOIL synthetic motor oil waste less energy overcoming intrafluid and metal-to-metal friction, allowing them to deliver more power to the transmission. Vehicles respond quicker and achieve faster top speeds. Making Amsoil The Best Motor Oil.

Increased Fuel Economy The low intrafluid friction and metal-to-metal friction reducing properties of AMSOIL synthetic motor oils also improve fuel economy by delivering more of the energy created through combustion of the air-fuel mixture to the transmission. Unlike conventional oils, AMSOIL synthetic motor oils contain no light molecules that may be lost to volatilization. Volatilization thickens conventional oils and makes them more difficult to pump, while the low volatilization of AMSOIL synthetic motor oils helps them maintain their original viscosity and fuel economy benefits. Making Amsoil the Best Motor Oil.

Cold Temperature - Starting AMSOIL synthetic motor oils retain better cold temperature cranking and pumping characteristics than petroleum oils. Because AMSOIL synthetic motor oils resist viscosity increases in cold temperatures, they allow the crankshaft to turn fast enough to start the engine in cold winter temperatures. Resistance to cold temperature viscosity increases also allows AMSOIL synthetic motor oils to maintain their pumpability for fast post-startup engine lubrication and excellent wear protection.

Increased Vehicle Life

Wear Control Viscosity Retention - The superior chemistry of AMSOIL synthetic motor oils helps them maintain thick protective oil films in high temperature operating conditions. Many competing motor oils contain low quality additives prone to rupture during periods of mechanical stress, affecting the oil's ability to maintain a thick protective oil film during high temperature operating conditions and exposing critical engine parts to increased levels of wear.

Film Strength - AMSOIL synthetic motor oils feature molecules of uniform size and shape and uniformly strong intermolecular bonds, helping them maintain an unbroken lubricating film even when faced with stressful engine operations such as rapid acceleration and deceleration.

Corrosion Protection - Acids form as combustion by-products, such as water, combine with oxidation by-products or fuel or air constituents such as sulfur or nitrogen. Acids corrode metals, while heat helps acids damage metal engine parts very rapidly. AMSOIL synthetic motor oils contain highly effective acid-neutralizing additives, something especially beneficial for diesel engines. Water is a normal combustion by-product that condenses on engine surfaces once they cool. Allowed to remain on these engine surfaces, it promotes corrosion. Stored engines are particularly prone to corrosion damage. AMSOIL synthetic motor oils form a water occlusive barrier on metal surfaces, protecting them from corrosion.

Foam Suppression - Engine operation can whip air into motor oil and impair its ability to provide adequate wear protection. Anti-foam additives in AMSOIL synthetic motor oils enhance wear protection by collapsing entrained air bubbles.

Contaminant Suspension - Dirt, engine wear metals and combustion by-products such as soot work to accelerate engine wear. Motor oil reduces the damage caused by these contaminants by carrying them to the oil filter, where they become trapped. AMSOIL synthetic motor oils are formulated with highly effective dispersant additives that keep contaminants suspended in the oil stream until they reach the oil filter. Diesel engines are particularly subject to soot contamination. AMSOIL synthetic motor oils reduce damage caused by soot by keeping soot particles from agglomerating. As soot agglomerates and particles grow in size, wear can occur. Furthermore, viscosity increases which may lead to filter plugging.