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AMSOIL Performance Test
Signature Series Synthetic Motor Oil
Signature Series helps keep engines cleaner, longer.
Signature Series Synthetic Motor Oil
Signature Series delivers powerful protection.
Signature Series Synthetic Motor Oil
Signature Series fights wear.
Signature Series Synthetic Motor Oil
Signature Series protects against LSPI.
Signature Series Synthetic Motor Oil
Signature Series guards turbos.
Signature Series Synthetic Motor Oil
Signature Series cleans.
Signature Series Synthetic Motor Oil
Signature Series fights viscosity breakdown.
Signature Series Synthetic Motor Oil
Signature Series helps keep valves clean.
AMSOIL Signature Series Synthetic Motor Oil
Signature Series resists viscosity increase.
Signature Series keeps pistons cleaner.
Signature Series keeps pistons cleaner.
XL Synthetic Motor Oil
XL resists oil breakdown.
OE Synthetic Motor Oil
OE Protects against wear.
Synthetic Diesel Oil
AMSOIL synthetic diesel oil delivers more wear protection.
DOMINATOR® Competition Diesel Oil
DOMINATOR protects better.
Synthetic Diesel Oil
Synthetic Diesel Oil reduces oil consumption
Signature Series Max-Duty Synthetic Diesel Oil
Signature Series keeps turbos clean.
Signature Series Max-Duty Synthetic Diesel Oil
Signature Series protects against rust.
Signature Series Max-Duty Synthetic Diesel Oil
Signature Series fights wear.
Signature Series 0W-40 Max-Duty Synthetic Diesel Oil
Signature Series excels in extreme cold.
Synthetic V-Twin Motorcycle Oil
AMSOIL resists viscosity breakdown.
Z-ROD® Synthetic Motor Oil
AMSOIL delivers superior rust protection.
SEVERE GEAR® Synthetic Gear Lube
AMSOIL fights water contamination.
SEVERE GEAR® Synthetic Gear Lube
AMSOIL delivers more cold-temperature protection.
Synthetic Marine Gear Lube
AMSOIL fights water contamination.
SABER® Professional Synthetic 2-Stroke Oil
SABER Professional fights carbon.
Synthetic Dirt Bike Oil
AMSOIL delivers confident clutch feel.
INTERCEPTOR® Synthetic 2-Stroke Oil
INTERCEPTOR fights wear and deposits.
Oil Filters
99% efficiency at 20 microns.
Upper Cylinder Lubricant
Preserves horsepower and performance.
P.i.® Performance Improver
P.i. increases horsepower.
Diesel All-in-One
Superior cold-temperature protection.
Diesel All-in-One
AMSOIL improves lubricity.
Gasoline Stabilizer
AMSOIL fights corrosion.
Gasoline Stabilizer
AMSOIL improves stability.
AMSOIL Antifreeze & Coolant
AMSOIL resists corrosion.
AMSOIL Antifreeze & Cavitation
AMSOIL resists cavitation.
ECHO 100:1 String Trimmer Technical Study (G3470)
AMSOIL SABER® Professional Synthetic 2-Stroke Oil mixed at 100:1 resisted deposits and maintained power better than ECHO Power Blend XTended Life Universal 2-Stroke Oil mixed at 50:1.
A Study of LUCAS Semi-Synthetic 2-Cycle Oil in ECHO* String Trimmers (G3466)
AMSOIL SABER® Professional Synthetic 2-Stroke Oil mixed at 50:1 provided improved resistance to performance-robbing deposits and power loss compared to LUCAS Semi-Synthetic 2-Cycle Oil in ECHO string trimmers.
ECHO String Trimmer Technical Study (G3455)
AMSOIL SABER® Professional Synthetic 2-Stroke Oil resisted performance-robbing deposits and maintained power and performance in ECHO string trimmers.
3,469-Mile Case Study in Rotax E-TEC Engine (G3038) (1.1 MB PDF)
AMSOIL submitted the pistons from a Ski-Doo Rotax E-TEC 800R engine to an ASTM-calibrated rater following 3,469 miles of aggressive trail riding to reveal that AMSOIL INTERCEPTOR® Synthetic 2-Stroke Oil provided outstanding protection and prevented piston skirt scuffing and ring sticking.
AMSOIL P.i. - A Study in Performance (G2543) (1 MB PDF)
8-page 4-color brochure detailing performance testing of AMSOIL P.i.
Redmax 100:1 Trimmer Technical Study (G3522)
AMSOIL SABER® Professional Synthetic 2-Stroke Oil mixed at 100:1 resisted deposits better than RedMax* 2-Stroke Engine Oil mixed at 50:1.
View More In The Performance Test Archive
The AMSOIL Performance Test Archive documents the consistent high performance of AMSOIL synthetic lubricants throughout the company’s history. Enter the archive to review samples to review samples of past performance tests and technical studies.
View Archive