Amsoil Formula 4-Stroke Synthetic Scooter Oil (ASO)

Amsoil Formula 4-Stroke Synthetic Scooter Oil (ASO)

Amsoil Formula 4-Stroke Synthetic Scooter Oil meets the needs of today’s high-tech air- and water-cooled four-stroke motorized scooters. Unsurpassed wear protection and friction reduction for longer equipment life. Protects transmissions and gear boxes. Wet-clutch compatible to insure smooth clutch operation. Provides long-term protection during storage.

Product Highlights

Meets the needs of today’s high-tech air- and water-cooled four-stroke motorized scooters. Unsurpassed wear protection and friction reduction for longer equipment life. Protects transmissions and gear boxes. Wet-clutch compatible to insure smooth clutch operation. Provides long-term protection during storage.

AMSOIL Formula 4-Stroke 10W-40 Synthetic Scooter Oil is formulated specifically to meet the special needs of today’s high-tech air- and water-cooled four-stroke motorized scooters, offering outstanding wear protection and friction reduction for longer equipment life and cooler operating temperatures. Its exceptional shear stability provides consistent viscosity protection and additional protection for transmissions and gearboxes, while its friction-modifier-free formulation ensures wet-clutch compatibility and smooth clutch operation. A special anti-corrosion additive package provides long-term protection during periods of inactivity and storage.

Package Sizes (ASO)

CodeSizesUnits
ASOQT (ASOQT-EA)QuartEach
ASOQT (ASOQT-CA)QuartCase of 12

Shear Stability

High engine rpm common to scooter applications increases shear, causing conventional lubricants to lose viscosity and reduce their ability to control wear, resulting in shorter engine life. The synthetic formulation of Formula 4-Stroke Synthetic Scooter Oil effectively resists shear, delivering consistent viscosity protection for outstanding wear protection and extended equipment life.

Thermal Stability

Scooter engine operating temperatures fluctuate greatly, especially in air-cooled engines. Formula 4-Stroke Synthetic Scooter Oil resists breakdown at elevated temperatures, maintaining its protective viscosity for maximum wear control.

Transmission and Gear Box Compatibility

In many scooter applications, the engine and transmission and gearbox share the same oil reservoir. Formula 4-Stroke Synthetic Scooter Oil is shear stable and resists thinning from mechanical activity, providing superior protection for transmissions and gearboxes.

Wet-Clutch Compatibility

Some scooters employ a frictional clutch to engage and disengage the engine from the drivetrain. In many cases, this clutch is immersed in the same oil used in the engine and transmission. Formula 4-Stroke Synthetic Scooter Oil is wet-clutch compatible. It contains no friction modifiers, offering smooth clutch operation and increased clutch life.

Rust and Corrosion Protection

Scooters are often subjected to extended periods of inactivity and storage, exposing the equipment to internal rust and corrosion. Formula 4-Stroke Synthetic Scooter Oil is formulated with a special anti-corrosion additive package designed to provide long-term protection during periods of inactivity and storage.

  • Protects against wear
  • Resists shear for excellent gear protection
  • Delivers smooth clutch operation
  • Applications and Recommendations

Use wherever SAE 10W-40 motor oil is specified in air-and water-cooled four-stroke motorized scooter engines, transmissions and gearboxes recommended for any of the specifications below, including those made by Honda*, Kawasaki*, Suzuki,* Yamaha*, Vespa*, Aprilia*, Piaggio*, Benelli*, Vento*, Kymco*, Tank* and TGB*.

  • API SG, SL/CF
  • JASO MA/MA2 (motorcycle wet clutch)
  • ISO-L-EMA2

Service Life

Follow the equipment manufacturer’s recommended drain intervals.

Compatibility

AMSOIL Formula 4-Stroke Synthetic Scooter Oil is compatible with other synthetic and conventional motor oils. Mixing AMSOIL motor oil with other oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL motor oils.

WARRANTY SECURE®

Outboard Synthetic 2-Stroke Oil is Warranty Secure, keeping your factory warranty intact. Outboard Synthetic 2-Stroke Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the Amsoil Limited Warranty (G1363). For details, visit www.amsoil.com/warrantysecure.

TYPICAL TECHNICAL PROPERTIES 2-Stroke (ASO)
Amsoil Injector Oil
Kinematic Viscosity @ 100°C, cSt (ASTM D445)14.6
Kinematic Viscosity @ 40°C, cSt (ASTM D445)96.7
Viscosity Index (ASTM D2270)157
Fire Point ˚C (˚F) (ASTM D92)250 (482)
Pour Point °C (°F) (ASTM D97)-40 (-40)
Flash Point °C (°F) (ASTM D92)238 (460)
High-Temperature/High-Shear Viscosity, cP (ASTM D5481)4.2
Noack Volatility, % weight loss (ASTM D5800)5.4
Total Base Number8.5

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil (AFF)

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil (AFF)

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil is specially formulated for 4-stroke recreational motors, ATVs and snowmobiles. Reduces wear. Wet-clutch compatible. Contains no friction modifiers. Broad viscosity range makes it excellent for use in both hot and cold weather conditions.

Product Highlights

Specially formulated for 4-stroke recreational motors, ATVs and snowmobiles. Reduces wear. Wet-clutch compatible. Contains no friction modifiers. Broad viscosity range makes it excellent for use in both hot and cold weather conditions.

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil is specially formulated for ATVs, UTVs, snowmobiles and other powersports 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 Formula 4-Stroke Power Sports Oil 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 Oil is an extreme-temperature lubricant that provides outstanding performance in high-performance, recreational or work/utility engines.

Package Sizes (AFF)

CodeSizesUnits
AFFQT (AFFQT-EA)QuartEach
AFFQT (AFFQT-CA)QuartCase of 12
AFF30 (AFF30-EA)30-Gallon DrumEach
AFF55 (AFF55-EA)55-Gallon DrumEach

Resists Heat and Thermal Breakdown

Amsoil engineered Formula 4-Stroke Power Sports Synthetic Motor Oil to withstand the high temperatures of recreational engines. It effectively resists oxidation and oil vaporization to help prevent carbon/varnish formation, control oil consumption and minimize exhaust emissions. It also controls oil thickening, promoting improved fuel economy, and it helps keep engines clean for peak operating efficiency.

Excellent For Transmissions

Amsoil Formula 4-Stroke Power Sports Oil is wet-clutch compatible and contains no friction modifiers, making it ideal for both two- and four-stroke ATV transmissions. The friction-modifier-free formulation is designed to prevent clutch slippage, helping deliver maximum torque and power to the wheels – a critical feature for towing or high-horsepower engines. It meets the frictional requirements of JASO MA/MA2 and ISO-L-EMA2.

Superior Wear Protection

Amsoil Formula 4-Stroke Power Sports Oil is formulated with high levels of anti-wear additives that provide excellent protection for pistons, bearings and gears in transmission-containing units. Its shear-stable, SAE 40 viscosity delivers a thick lubricating film for an extra margin of protection in hard-working engines.

Anti-Foam

Churning occurs in high-rpm engines that can cause oil to foam, depleting its lubricating abilities and increasing heat and wear. Amsoil Formula 4-Stroke Power Sports Oil controls foam, promoting cooler engine operation and reduced wear.

Special Additives

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil contains robust dispersant/detergent additives that effectively neutralize the high levels of acids and combustion by-products prone to small engines. It is anti-rust fortified for superior rust prevention, which is especially important in seasonally or infrequently used powersports equipment.

APPLICATIONS AND RECOMMENDATIONS

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil is recommended for four-stroke engines. It is also recommended for transmissions in two- or four-stroke applications. It is an all-climate/all-season oil that replaces 0W-30, 0W-40, 5W-30, 10W-30 and 10W-40 oils for ATVs, UTVs, snowmobiles and other powersports equipment. Also recommended as a replacement for Polaris Synthetic PS-4 Plus and Arctic Cat Synthetic ACX. Manufacturers include Polaris®, Honda®, Yamaha®, Ski-Doo®, Can-Am® (Bombardier®), Suzuki®, Kawasaki® and Arctic Cat®.

  • API SL/CF, SJ, SH, SG
  • JASO MA/MA2
  • ISO-L-EMA2

COMPATIBILITY

Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil is compatible with conventional and synthetic motor oils. Mixing Amsoil motor oils with other oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. Amsoil does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with Amsoil motor oils.

SERVICE LIFE

Follow the equipment manufacturer’s recommended drain intervals.

WARRANTY SECURE®

Outboard Synthetic 2-Stroke Oil is Warranty Secure, keeping your factory warranty intact. Outboard Synthetic 2-Stroke Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the Amsoil Limited Warranty (G1363). For details, visit www.amsoil.com/warrantysecure.

TYPICAL TECHNICAL PROPERTIES 2-Stroke (AFF)
Amsoil Formula 4-Stroke Power Sports Synthetic Motor Oil
Kinematic Viscosity @ 100°C, cSt (ASTM D445)14.8
Kinematic Viscosity @ 40°C, cSt (ASTM D445)87.0
Viscosity Index (ASTM D2270)179
CCS Viscosity @-35°C cP (ASTM D5293)5805
Pour Point °C (°F) (ASTM D97)-50 (-58)
Flash Point °C (°F) (ASTM D92)234 (453)
Four-Ball Wear Test
(ASTM D4172B@40kg,75°C, 1200rpm, 1hr), Scar, mm
0.36
Noack Volatility, % weight loss (ASTM D5800)7.8
Total Base Number9.1