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.
| Castrol
V-Twin 20W-50 (Below) |
 |
| AMSOIL
MCV (Below) |
 |
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 (MCV) |
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 |
Thursday, November 20, 2008 03:50 am
