Save 10-20% on your Amsoil order by signing up for our Preferred Customer Account

Why Use Amsoil?

• Increase Fuel Efficiency
• Decrease Dependency On Foreign Oil
• Increase Vehicle Performance
• Save Money with Fewer Oil Changes
• The Right Environmental Choice

Where and When to use Amsoil

• Passenger Cars
• Pickup Trucks/ Work Trucks
• Racing & Performance Vehicles
• Outboards & Marine
• Motorcycles
• RV's & Motor homes
• Industrial
• Diesel Vehicles
• Power Sports

What's in Your Motor?

• The Great Oil Debate: AMSOIL;
• Fisherman Saves Time and Money;
• Engine Life Increases 500%;
• Motoroil Comparison Tests (pdf)
• A Study of Automotive Gear Lubes (pdf)
• A Study of Motorcycle Oils (pdf)

Amsoil News & Articles

• Harley-Davidson Shifts Gears on Synthetic Motorcycle Oil
• Harley-Davidson Confirms To AMSOIL That The Use Of Synthetic Motor Oils Other Than Harley-Davidson Oil Does Not Void Warranty Coverage
• The Great Oil Debate: AMSOIL

How to Purchase Amsoil

• Find a Dealer
• Shop Online
• Download Catalog
• Request Catalog

Learn More about Amsoil

• Amsoil History
• Amsoil News & Articles
• About www.tristatesynthetics.com