Synthetic Engine Oil Tips & News

The 2018 Dodge Challenger SRT Demon is the most powerful factory production muscle car ever built. This beast demands the highest level of engine protection. AMSOIL provides unmatched performance oils for extreme vehicles like the Demon. Drive with confidence, knowing your oil can handle the heat....

When your engine roars but the power doesn’t reach the wheels, you’re experiencing clutch slippage—a performance killer for motorcycles, dirt bikes, and ATVs. Riders often blame worn-out clutch plates, but in many cases, the real culprit is your oil. Using the wrong oil in a wet-clutch system can lead to: The good news? You can often fix clutch slippage—and prevent...

Racing engines demand more from motor oil. High speeds, elevated temperatures, and extreme stress require enhanced protection. AMSOIL DOMINATOR® Synthetic Racing Oil is designed for racers who push their engines to the limit. Benefits include: Whether you’re drag racing, circuit racing, or dirt track racing, DOMINATOR has you covered....

Whether you’re riding trails or racing motocross, your engine deserves premium protection. AMSOIL synthetic 2-stroke oil burns clean and reduces smoke, deposits, and wear. AMSOIL 10W-40 Synthetic Dirt Bike Oil is engineered for 4-stroke performance, offering improved clutch feel and superior gear protection. Designed for the demands of Honda, Yamaha, Kawasaki, Suzuki, KTM, and Husqvarna motorcycles. Get the control and...

When you’re on the water, reliability is everything. Marine engines face extreme demands, long hours at high RPMs, heavy loads, and constant exposure to moisture and salt. Without proper care, these conditions can quickly lead to corrosion, salt and carbon deposits, and costly repairs. That’s why marine engine maintenance begins with one crucial choice: the right marine engine oil. ContentsThe...

Ideal for chassis, joints, bolts, and suspension systems, our synthetic grease provides high-temperature protection and resistance to washout. Whether you’re racing or off-roading, synthetic grease is the best choice for extreme conditions. It stays in place, reduces friction, and extends component life. Key Benefits:...

Devoted to Protection AMSOIL Signature Series Synthetic Motor Oil delivers 75% more engine protection against horsepower loss and wear than required by a leading industry standard*. The superior performance of Signature Series extends the life of vital engine components such as pistons and cams. *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D7320 Engine Test as...

When it comes to engine maintenance, one of the most common questions drivers have is: What’s the difference between synthetic and conventional motor oil? While both are designed to lubricate, protect, and clean your engine, the way they’re made and how they perform under stress couldn’t be more different. Understanding these differences can help you make a more informed decision...

Few things are more frustrating—or potentially damaging—than an overheated engine. Whether you’re commuting, traveling, or running errands, excessive engine heat can leave you stranded and lead to costly repairs. Fortunately, overheating is often preventable with proper maintenance and smart driving habits. At Factory Direct Oil, we know how annoying it is to deal with an overheated engine, and we’re here...

ContentsWhy Oil Checks and Synthetic Oil Changes Are Essential for Engine SafetyHow Synthetic Oil Protects Your EngineWhy Regular Oil Checks MatterThe Importance of Timely Oil ChangesHow to Check Oil Level and ConditionProtect Your Engine with Proper Oil Maintenance Why Oil Checks and Synthetic Oil Changes Are Essential for Engine Safety Small maintenance oversights can quickly turn into major engine problems—especially...