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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.

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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

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AMSOIL 100% Synthetic Stationary Natural Gas Engine Oil

Formulated to Provide Top Efficiency in Stationary Engines Fueled by...
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AMSOIL SAE 30 Break-In Oil

Quickly seats piston rings Increased zinc and phosphorus protect against wear Maximizes compression...
Black AMSOIL synthetic motor oil bottle.

AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil

A New Level of Motor Oil Technology 75% more engine...
AMSOIL Dominator Racing Oil bottle.

AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil

Formulated specifically for racing & high-performance engines Robust formulation resists viscosity loss...
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AMSOIL 10W-60 FS 100% Synthetic European Motor Oil

Designed for high-performance European vehicles. European formula features precise blend of synthetic...
Synthetic hybrid motor oil bottle.

AMSOIL 0W-8 100% Synthetic Hybrid Motor Oil

Specially Formulated For Hybrid Engines Superior Sludge & Deposit Control Maximizes Fuel Efficiency...
Amsoil European motor oil bottle.

AMSOIL 5W-40 MS 100% Synthetic European Motor Oil

Designed for the unique demands of gasoline, diesel and hybrid European...
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AMSOIL 5W-40 FS 100% Synthetic European Motor Oil

Designed for the unique demands of gasoline, diesel and hybrid European...
AMSOIL 20W-50 synthetic motor oil bottle.

AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil

High-zinc formula guards against wear Ideal for flat-tappet cams Resists deposits to help...
AMSOIL Z-ROD motor oil bottle.

AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil

Engineered for classic vehicles Helps retain horsepower High-zinc formula protects flat-tappet cams, lifters,...
AMSOIL European motor oil bottle, SAE 0W-30.

AMSOIL 0W-30 MS 100% Synthetic European Motor Oil

Designed for the unique demands of gasoline, diesel and hybrid European...
Black bottle of AMSOIL synthetic motor oil.

AMSOIL Signature Series 0W-30 100% Synthetic Motor Oil

75% more engine protection against horsepower loss and wear.1 50% more cleaning...
Synthetic European motor oil bottle, SAE 0W-40.

AMSOIL 0W-40 FS 100% Synthetic European Motor Oil

Designed for the unique demands of gasoline, diesel and hybrid European...
Synthetic motor oil bottle, AMSOIL 0W-40.

AMSOIL OE 0W-40 100% Synthetic Motor Oil

Fights sludge and deposits with 100% synthetic formulation. 47% more wear...
AMSOIL synthetic motor oil bottle, black background.

AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil

A New Level of Motor Oil Technology 75% more engine...
AMSOIL synthetic hybrid motor oil bottle.

AMSOIL 0W-16 100% Synthetic Hybrid Motor Oil

Specially formulated for hybrid engines Superior sludge and deposit control Maximizes fuel economy...
Amsoil motor oil bottle, advanced engine protection.

AMSOIL OE 0W-16 100% Synthetic Motor Oil

Fights sludge and deposits with 100% synthetic formulation. 47% more wear...
Amsoil motor oil bottle, synthetic, SAE 10W-40.

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

37% more cleaning power1 to help keep your engine running smoother,...
Amsoil Z-ROD motor oil bottle.

AMSOIL Z-ROD® 10W-40 100% Synthetic Motor Oil

Engineered for classic vehicles Helps retain horsepower High-zinc formula protects flat-tappet cams, lifters,...
AMSOIL synthetic racing oil bottle, black background.

AMSOIL DOMINATOR® 10W-40 100% Synthetic Racing Oil

Formulated specifically for racing & high-performance engines Robust formulation resists viscosity loss...
AMSOIL 10W-40 motor oil bottle.

AMSOIL Premium Protection 10W-40 100% Synthetic Motor Oil

High-zinc formula guards against wear Ideal for flat-tappet cams Resists deposits to help...