What makes AMSOIL synthetic motor oils so good?

The molecular uniformity and purity of synthetic oils allows them to protect and lubricate engines better and more efficiently in all operating conditions than conventional oils do. Synthetics lubricate and protect quickly in cold temperatures, maintain a dependable lubricating film in normal operating temperatures and shield moving parts from damage and wear during high stress, high temperature operations. AMSOIL synthetic motor oils exceed the most demanding world-wide performance standards and meet warranty requirements for all domestic and imported motor vehicle engines.

AMSOIL High Performance Oils

AMSOIL High Performance synthetic motor oils are specially formulated to operate in high-temperature/high-stress engines, such as those in sport utility vehicles, motor homes, pickup trucks and diesel-powered passenger vehicles. AMSOIL High Performance synthetic motor oils provide maximum TBN and dispersant protection to control acid and soot in diesel engines. They also provide high levels of key anti-wear chemistries and have outstanding ability to maintain a dependable lubricating film of protection in stressful operating conditions — like those experienced by sport utility vehicles, motor homes and pickup trucks.

AMSOIL XL Motor Oils

AMSOIL XL synthetic motor oils are made to deliver 10,000 miles or six months of service between oil changes (or longer when relying on factory-installed oil monitoring systems such as used on GM and some European vehicles). These oils provide outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.

Customer Testimonial

I thought, “There goes the engine for sure. Forty miles of stop-and-go driving with no oil had to hurt it.” When we saw the oil pan, we couldn’t believe how clean it was. We pulled the front and rear bearings and they showed literally no wear, no shiny spots. Later, we discovered the valve chambers and covers were as clean as the pan. After we put the engine back in the truck and started it up, everything was normal, even the oil pressure. The truck ran like new. The garage owner was amazed at the whole thing, but I told him that was AMSOIL motor oil doing its job.
O.B., RALEIGH, NORTH CAROLINA

Since 1979, I’ve used AMSOIL motor oil in every used auto regardless of mileage.
AMSOIL will not cure a bad engine, but it will save a sound engine and keep it going beyond your wildest expectations.
B. P., WRANGELL, ALASKA