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AMSOIL Four-Stroke Oils

Synthetic 4-Stroke Oil

4-Cycle AMSOIL Product Recommendations (PDF 224k)

AMSOIL SAE 0W-40 Formula 4-StrokeŽ Synthetic PowerSports OilSAE 0W-40 Formula 4-Stroke® Synthetic PowerSports Oil {AFF}
AMSOIL Formula 4-Stroke® Power Sports Synthetic Motor Oil (AFF) is specially formulated for ATVs, UTVs, snowmobiles and other power sports applications. Its broad viscosity range and wax-free formulation make it excellent for use in both hot and cold temperature extremes. As an SAE 40 weight motor oil, AMSOIL AFF provides outstanding protection for hot operating engines, while its 0W rating and -60°F pour point ensure easy cranking, excellent cold weather starting and quick post-startup protection. Formula 4-Stroke® Power Sports is an extreme temperature lubricant that provides outstanding performance in high performance, recreational or work/utility engines.
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AMSOIL 10W-30/SAE 30 Formula 4-StrokeŽ Synthetic Small Engine Oil
10W-30/SAE 30 Formula 4-Stroke® Synthetic Small Engine Oil
{ASE}
A commercial grade formulation designed for hot temperature, severe service operation of small engines where routine maintenance is often difficult or infrequent. Recommended for use wherever SAE 10W-30 or SAE 30 oil is specified in gasoline or diesel engines, transmissions, hydraulics, and chain cases requiring the listed specifications. Applications include maintenance equipment, tractors, lawn and garden equipment, generators, compactors, pumps, light towers, welders, log splitters, power washers, cement mixers and trowels, skid-steers, excavators and compressors.
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AMSOIL SAE 10W-30 Formula 4-StrokeŽ Synthetic Marine Motor Oil
SAE 10W-30 Formula 4-Stroke® Synthetic Marine Motor Oil
{WCT}
AMSOIL 10W-30 Formula 4-Stroke® Marine Synthetic Motor Oil (WCT) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. It withstands the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. Formula 4-Stroke® Marine Synthetic Motor Oil is specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. It excels in both high horsepower applications and all-day trolling conditions.
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AMSOIL SAE 10W-40 Formula 4-StrokeŽ Synthetic Marine Motor Oil
SAE 10W-40 Formula 4-Stroke® Synthetic Marine Motor Oil
{WCF}
AMSOIL 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil (WCF) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. It withstands the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. Formula 4-Stroke® Marine Synthetic Motor Oil is specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. It excels in both high horsepower applications and all-day trolling conditions.
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AMSOIL SAE 10W-40 Formula 4-StrokeŽ Synthetic Scooter Oil
SAE 10W-40 Formula 4-Stroke® Synthetic Scooter Oil
{ASO}
AMSOIL 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil (WCF) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. It withstands the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. Formula 4-Stroke® Marine Synthetic Motor Oil is specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. It excels in both high horsepower applications and all-day trolling conditions.
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AMSOIL Series 2000 Octane Boost

Series 2000 Octane Boost
{AOB}
AMSOIL Series 2000 Octane Boost improves the performance of all two-cycle and four-cycle gasoline-fueled engines. Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines. Increases octane number up to seven points. Reduces engine knock, improves ignition and engine response, helps fuel burn cleaner and inhibits corrosion. Recommended for off-road and racing use.
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