AMSOIL stands out in the motor oil industry, not just for its quality, but for the extensive, rigorous testing each product undergoes before reaching customers. AMSOIL’s commitment to testing ensures that its synthetic oils consistently outperform competing brands, providing unmatched protection, durability, and performance. Whether on the road, track, or trail, AMSOIL delivers reliable results, backed by rigorous science and decades of engineering.

Rigorous Testing in Extreme Conditions

AMSOIL products undergo intense testing in conditions far beyond what typical engines experience. Engineers test for extreme heat, cold, high RPMs, and heavy loads to ensure AMSOIL performs under the toughest scenarios. This process includes high-temperature tests that measure the oil’s resistance to oxidation, a key factor in preventing sludge and maintaining viscosity. Cold-flow tests determine how quickly AMSOIL circulates in frigid temperatures, allowing it to provide immediate lubrication and protection even in extreme winter conditions.

Unlike competing brands that may focus on standard conditions, AMSOIL subjects each product to real-world scenarios and beyond. This means AMSOIL users can trust that their engine oil will protect their vehicle in any weather or driving condition.

Independent Laboratory Testing Confirms AMSOIL’s Superiority

AMSOIL frequently submits products to independent laboratories for testing against other major brands. These labs conduct industry-standard tests to measure wear protection, viscosity stability, oxidation resistance, and fuel efficiency. AMSOIL consistently ranks at the top in each category, often outperforming leading conventional and synthetic oils.

One of the standout areas where AMSOIL excels is in the Four-Ball Wear Test, which measures an oil’s ability to reduce friction and wear. AMSOIL repeatedly demonstrates low wear scars, indicating high durability under pressure, outperforming other oils that often fail to meet the same level of protection. This level of wear protection not only prolongs engine life but also reduces the need for repairs, ultimately saving AMSOIL users time and money.

Extended Drain Intervals Proven Through Long-Term Testing

AMSOIL’s extended drain interval capability is another area where rigorous testing shines. While conventional oils may require changes every 3,000 to 5,000 miles, AMSOIL Signature Series Synthetic Motor Oil is designed to last up to 25,000 miles or one year, depending on driving conditions. Long-term testing under various driving scenarios proves that AMSOIL retains its protective qualities well beyond the mileage limits of most competitors. This extended interval not only lowers maintenance costs but also reduces environmental impact by minimizing oil waste.

Consistent Performance for Every Application

Whether it’s for high-performance racing, heavy-duty trucks, or everyday commuters, AMSOIL consistently outperforms other brands across all applications. Testing on different engines and vehicles ensures that AMSOIL products provide maximum protection and efficiency, tailored to each unique need. The level of testing AMSOIL performs goes above industry standards, which means drivers get a product they can rely on, no matter where or how they drive.

Choose AMSOIL for Proven Performance

AMSOIL’s rigorous testing process delivers a product that drivers can trust to protect and enhance their engine’s performance. The extensive testing on each oil ensures it outlasts and outperforms competing brands, providing protection that’s backed by science and proven in the field. When you choose AMSOIL, you’re choosing oil that’s engineered for excellence.