Person holding a large, beige bottle with measurement markings, in a store aisle lined with similar bottles.

Engineered for Performance and Protection

AMSOIL is a leader in synthetic lubrication solutions, offering products designed to enhance engine performance, reduce wear, and extend service life. With a reputation for quality and innovation, many AMSOIL diesel and motor oils deliver guaranteed protection for up to 25,000 miles, making them a preferred choice for those seeking reliability and efficiency.

AMSOIL Product Lineup

Stay Informed & Updated

Understanding Oil Viscosity Presentation Slide.

Understanding Oil Viscosity

12/11/2025
Viscosity is the measure of a fluid's resistance to flow. The physical properties of lubricants...

Unmatched Protection for Every Drive

AMSOIL’s advanced formulas provide unmatched protection, whether for daily use or high-performance applications. Reach out today to get access to top-tier AMSOIL products. Whether you need AMSOIL transmission fluid or accessories, we are your right choice.

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More AMSOIL® Products

AMSOIL synthetic grease tube, gray packaging.

AMSOIL 100% Synthetic High-Viscosity Lithium-Complex Grease

Industrial Synthetic Lubricant Formulated with EP additives and high-viscosity base oil...
Amsoil spray grease can with black cap.

AMSOIL Spray Grease

White lithium grease protects against wear and corrosion Lubricates moving parts for...
AMSOIL chain lube spray can.

AMSOIL Chain Lube

Provides outstanding wear and corrosion protection for all types of chains...
Amsoil X-Treme Synthetic Food-Grade Grease Tube.

AMSOIL X-Treme 100% Synthetic Food-Grade Grease

NSF-Approved Formula (formerly USDA H-1) Designed for use in food service and...
Engine assembly lube tube, AMSOIL brand.

AMSOIL Engine Assembly Lube

High-Quality Assembly Lube for Racing, Performance and Other Four-Stroke Engines...
AMSOIL Dominator Racing Grease tube.

AMSOIL DOMINATOR® 100% Synthetic Racing Grease

Exceptional High-Speed/High-Temperature Performance Excellent for high-speed, high-heat and heavily loaded bearings...
AMSOIL synthetic polymeric grease tube.

AMSOIL NLGI #2 100% Synthetic Polymeric Off-Road Grease

Outstanding extreme-pressure protection Stays in place to help seal out contaminants Resists impact...
Yellow AMSOIL synthetic polymeric grease tube.

AMSOIL NLGI #1 100% Synthetic Polymeric Off-Road Grease

Outstanding extreme-pressure protection Stays in place to help seal out contaminants Resists impact...
AMSOIL synthetic polymeric EP grease tube.

AMSOIL NLGI #2 100% Synthetic Polymeric Truck, Chassis and Equipment Grease

Formulated for medium- and heavy-duty applications Superior extreme-pressure and corrosion protection Excellent wear...
AMSOIL synthetic polymeric EP grease tube.

AMSOIL NLGI #1 100% Synthetic Polymeric Truck, Chassis and Equipment Grease

Formulated for medium- and heavy-duty applications Superior extreme-pressure and corrosion protection Excellent wear...
Blue AMSOIL synthetic grease tube.

AMSOIL 100% Synthetic Water-Resistant Grease

Superior Lubrication and Protection in Automotive, Powersports and Industrial Applications...
Red AMSOIL multipurpose synthetic grease tube.

AMSOIL 100% Synthetic Multi-Purpose Grease

Resists thermal and oxidation degradation for long-term performance Outstanding low-temperature pumpability and...
AMSOIL engine fogging oil spray can.

AMSOIL Engine Fogging Oil

Protection for Stored Seasonal Equipment Highly-effective rust preventive designed to protect...
Heavy-duty degreaser spray can, 15 oz.

AMSOIL Heavy-Duty Degreaser

Dissolves oil, tar and grime Removes sticky residue Works fast Low-VOC formula Non-foaming Product...
AMSOIL engine degreaser spray can.

AMSOIL Engine Degreaser

Clean Your Engine Like a Pro Professional-strength formula packed with powerful...
Marine gear lube pouch, AMSOIL brand.

AMSOIL 75W-90 100% Synthetic Marine Gear Lube

Excellent gear and bearing protection, even when contaminated with 15% water1...
AMSOIL chaincase and gear oil bottle.

AMSOIL 100% Synthetic Chaincase & Gear Oil

Long-Lasting Performance for ATVs and Snowmobiles Extreme-pressure additives promote long chain...
Amsoil synthetic V-Twin primary fluid bottle.

AMSOIL 100% Synthetic V-Twin Primary Fluid

Delivers consistent clutch feel for confident takeoffs Helps prevent clutch slip Provides smooth...
Amsoil Slip Lock additive tube.

AMSOIL Slip Lock® Differential Additive

Differential Additive Contains advanced friction modifiers. Helps eliminate gear housing chatter. Recommended for...
Black Amsoil lubricant bucket with label.

AMSOIL 80W-140 Long Life 100% Synthetic Gear Lube

Specifically engineered for 500,000-mile (805,000 km) service life in over-the-road trucks...
Amsoil gear lube bottle with blue cap.

AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube

Specifically engineered for 500,000-mile (805,000 km) service life in over-the-road trucks...