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AMSOIL 20W-50 Synthetic Motorcycle Engine Oil
AMSOIL Synthetic Motorcycle
Oils have been reformulated with new high performance
additive technology that provides even greater multi-functional
benefits for the special requirements of motorcycle
applications. These independent and exclusive new
AMSOIL formulations provide second-to-none viscosity
protection for hot-running American and foreign motorcycle
engines, transmissions and primary chaincases. Performance
specifications include: API
SG/CF, JASO MA
See product application notes for
Harley Davidson Motorcycles at bottom of page
PRODUCT DESCRIPTION
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.
TYPICAL TECHNICAL PROPERTIES
|
SAE 20W-50 Synthetic Motorcycle
Oil
|
Kinematic Viscosity @ 100°C, cSt
(ASTM D-445)
|
20.1 |
Kinematic Viscosity @ 40°C, cSt
(ASTM D-445)
|
151.98 |
Viscosity Index (ASTM D-2270)
|
153 |
CCS Viscosity (ASTM D2602)
|
5609
@ -15°C |
Pour Point °C (°F) (ASTM D-97)
|
-39 (-38) |
Flash Point °C (°F) (ASTM D-92) |
240 (464) |
High Temperature/High Shear
Viscosity @ 150°C , 1.0 x 106 s-1
(ASTM D 4683), cP |
6.02 |
Four Ball Wear Test (ASTM D-4172
@ 40 kgf, 150°C, 1800 rpm, 1 hour), Scar in mm |
0.40 |
Noack Volatility, % weight loss
(g/100g) (ASTM D-5800)
|
3.89 |
Total Base Number
|
11 |
Foam (ASTM D-892, Sequence I,
II & III) |
0/0/0 |
Harley Davidson Motorcycles
Harley-Davidson
Confirms To AMSOIL That The Use Of Synthetic Motor
Oils Other Than Harley-Davidson Oil Does Not Void
Warranty Coverage - warranty
addendum
Crankcase requiring 20W50 lubricant; Harley Davidson
part numbers 99903-93 and 99896-88, use the AMSOIL
High Performance Synthetic 20W-50 Motorcycle Engine
Oil, product code AMV.
Transmission requiring 75W90 lubricant; Harley Davidson
part numbers 99892-84 and 98853-96, use the AMSOIL
Series 2000 Synthetic 75W90 (AGR/TGR) Gear Lube, product
code TGR.
Chain Case Oil (primary) lubricants requiring 10W40;
Harley Davidson part number 99887-84, uses the AMSOIL
High Performance Synthetic 10W40 Motorcycle Engine
Oil, product code AMF.
The exception is the Sportster. It has two oil reservoirs
instead of three and uses the same oil in both reservoirs.
Use AMSOIL 20W50 Synthetic Engine Lubricant in both
reservoirs, product code AMV
Note: The AMSOIL 20w50 (AMV) and 10W40 (AMF) Motorcycle
Engine Oils do not contain friction modifiers and
meet Harley Davidson specification for the wet clutch
system.
Harley-Davidson forks that recommend type "E" or "B"
fork oils, use the AMSOIL Shock Therapy Suspension
Fluid, product code STM
Harley Davidson air filter part numbers, 2900252,
29002-52A, 29002-57, 29002-58, and 29036-56 uses the
AMSOIL, product code TS-77.
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