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AMSOIL 20W-50 Synthetic Motorcycle Oil (MCV) is recommended for
Harley-Davidson, Buell, Victory, Ducati, BMW, Aprilla and Triumph
motorcycles calling for a 15W-50 or 20W-50 viscosity, providing
superior protection in engines, transmissions and primary chaincases.
AMSOIL 10W-40 Synthetic Motorcycle Oil (MCF) is recommended for
Honda, Kawasaki, Yamaha, Suzuki, BMW, Husqvarna and KTM motorcycles
calling for a 10W-40 or 20W-40 viscosity, providing superior
protection in engines and transmissions.
Improved
Transmission Protection
AMSOIL
Synthetic Motorcycle Oils not only provide superior protection for
motorcycle engines, they also provide superior gear protection,
meeting API GL-1 gear lube viscosity requirements. AMSOIL Synthetic
10W-40 Motorcycle Oil (MCF) meets SAE 80W-90 gear lube requirements,
while AMSOIL Synthetic 20W-50 Motorcycle Oil (MCV) meets SAE 90 gear
lube viscosity requirements.
Viscosity is
the most important characteristic of a lubricant. Motorcycle gears
create a shearing effect that causes permanent oil viscosity loss.
This thinning effect reduces the oil's ability to prevent
metal-to-metal contact and wear. The stability and natural operating
temperature ranges of the premium synthetic base stocks used to
formulate AMSOIL Synthetic Motorcycle Oils eliminate shear and
reduce wear. AMSOIL Synthetic Motorcycle Oils exhibit absolute shear
stability as measured by the Kurt Orbon shear stability test.
The high
temperatures and tight tolerances common to motorcycle applications
also affect viscosity. The High Temperature/High Shear (HTHS) Test
(ASTM D-4683) measures a lubricant's viscosity under severe high
temperature and shear conditions. The more resistant an oil is to
high temperature viscosity loss, the better it protects, and even a
HTHS difference of 0.1 cP makes a significant difference.
AMSOIL
Synthetic Motorcycle Oils exhibit higher HTHS viscosities than
competing conventional and synthetic motorcycle oils. As seen in the
graphs, AMSOIL Synthetic 20W-50 and 10W-40 Motorcycle Oils displayed
the highest High Temperature/High Shear viscosities in their
respective test groups, providing motorcycle engines and
transmissions operating in the harshest conditions with superior
protection against wear and viscosity loss and eliminating the need
for separate gear case oils as recommended by some competitors.
Synthetic 10W-40 may also be used in two-cycle transmissions.
Excellent
Wet Clutch Performance
Many motorcycles utilize a clutch that is immersed in the motor oil.
The friction modifiers present in many automotive motor oils and the
extreme pressure additives present in EP gear lubricants produce a
low coefficient of friction between the clutch discs and plates,
resulting in clutch slippage and glazing. Slippage leads to
increased operating temperatures and reduced clutch life. AMSOIL
Synthetic Motorcycle Oils are formulated without friction modifiers,
providing positive clutch engagement, longer equipment life and
reduced temperatures. AMSOIL Synthetic Motorcycle Oils meet the
clutch compatibility requirements mandated by JASO MA.
Excellent
Corrosion Protection
Most
motorcycles spend the majority of their lives either parked or in
storage, but most motorcycle oils fail to address corrosion
problems. Corrosion protection during storage and in humid
conditions is essential to extending equipment life. AMSOIL
Synthetic Motorcycle Oils are formulated with specialized additive
technology that not only protect against corrosion and acids during
operation, but also provide exceptional protection during storage.
The ASTM D-1748 Rust Test measures a lubricant's ability to protect
against rust and corrosion. A standard metal reference coupon is
immersed in the test oil before being placed in a humidity cabinet
for 24 hours at 120 degrees F. As seen in the photos, the reference
coupon treated with AMSOIL 20W-50 Synthetic Motorcycle Oil showed no
signs of rust and corrosion, while the competitor failed the test.
Outstanding
Heat Resistance
Motorcycles
operate in demanding, high heat conditions that require robust high
temperature deposit control additives. While many conventional oils
break down and oxidize when faced with high temperatures, causing
formation of carbon and sludge deposits, AMSOIL Synthetic Motorcycle
Oils effectively withstand oil break-down and oxidation, keeping
equipment running cooler and minimizing oil consumption, thickening
and emissions. Air-cooled engines get especially hot while idling in
traffic, commonly reaching temperatures up to 240 degrees
Fahrenheit. The extra margin of protection provided by AMSOIL
Synthetic Motorcycle Oils is especially important for hot running
air cooled motorcycle engines.
Foam
Control
High engine
speeds and transmission gears in motorcycles churn the oil,
suspending air and causing foam. When this oil and air mixture is
drawn into a loaded area, the air compresses and decreases the
thickness of the oil film, compromising wear protection. In
addition, suspended air promotes oil oxidation, reducing its service
life. AMSOIL Synthetic Motorcycle Oils greatly reduce foaming to
provide long term lubricating protection in high speed, high RPM
conditions.
Robust
Additive Levels
Recent
automotive motor oil regulations have limited certain additive
levels, including the anti-wear additive known as ZDDP. ZDDP is an
extremely effective anti-wear, anti-oxidant additive, and reducing
its level results in compromised wear control and shortened service
life. Because motorcycle applications require robust additive
systems to control wear and oxidation, use of an automotive motor
oil or an automotive motor oil re-labeled as a motorcycle oil
compromises protection and performance. AMSOIL Synthetic Motorcycle
Oils are overtreated with robust additive packages, including high
levels of calcium, phosphorus, zinc and additional oxidation
inhibitors, to extend oil life expectancy, provide unmatched engine
cleanliness and greatly reduce wear.
AMSOIL
Synthetic Motorcycle Oils are recommended for twice the
manufacturer's recommended drain interval for on-road motorcycles.
The Four Ball
Wear Test (ASTM D-4172) determines the wear protection properties of
a lubricant. The smaller the average wear scar, the better the wear
protection provided by the lubricant. AMSOIL Synthetic Motorcycle
Oils produce significantly smaller wear scars than competing
motorcycle oils, providing unsurpassed protection against engine
wear, reducing maintenance costs and extending equipment life.
Cost
Effective
AMSOIL
Synthetic Motorcycle Oils provide excellent cost effectiveness and
are cost competitive with competing high end motorcycle oils. The
unmatched protection and performance provided by AMSOIL Synthetic
Motorcycle Oils is excellent insurance for today's expensive
motorcycles and custom bikes.
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