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.
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
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
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
Applications and Recommendations
AMSOIL Formula 4-Stroke Synthetic Scooter Oil is recommended
for use wherever SAE 10W-40 motor oil is specified in
air- and water-cooled four-stroke motorized scooter engines,
transmissions and gearboxes that require the following:
- API SG, SL/CF
- JASO MA/MA2 (motorcycle wet clutch)
Engine manufacturers include, but are not limited to, Honda,
Kawasaki, Suzuki, Yamaha, Vespa, Aprilia, Piaggio, Benelli,
Vento, Kymco, Tank and TGB.
Follow the equipment manufacturer's recommended
AMSOIL Formula 4-Stroke Synthetic Scooter 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.
Aftermarket oil additives are not recommended for use with
AMSOIL motor oils.
AMSOIL Product warranty
AMSOIL products are backed by a Limited Liability Warranty.
For complete information visit www.amsoil.com/warranty.aspx.
Health & Safety
This product is not expected to cause health concerns when
used for the intended application and according to the recommendations
in the Safety Data Sheet (SDS). An SDS
is available online at www.amsoil.com or upon request at
(715) 392-7101. Keep Out of Reach of Children. Recycle
used oil and bottle.
Formula 4-Stroke® 10W-40 Synthetic Scooter Oil (ASO)
Viscosity @ 100°C, cSt (ASTM D-445)
Viscosity @ 40°C, cSt (ASTM D-445)
Index (ASTM D-2270)
°C (°F) (ASTM D-97)
°C (°F) (ASTM D-92)
°C (°F) (ASTM D-92)
(ASTM D-4172B: 40 kgf, 75°C, 1200 rpm,
1 hr), Scar, mm
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
(ASTM D-4683 @ 150°C, 1.0 X 106 s.-1), cP