AMSOIL SAE 10W-40 Synthetic Motorcycle Oil (MCF)
AMSOIL 10W-40 Synthetic Motorcycle Oil is a premium oil designed for those who demand the absolute best
lubrication for their motorcycles. It is the result of extensive research and is specially formulated to excel in
all areas unique to motorcycles, including high engine rpm, wet-clutch lubrication, extremepressure regions of
gears and rust common to short drives and storage. AMSOIL 10W-40 Synthetic Motorcycle Oil is multi-functional and
fulfills the requirements of both domestic and foreign motorcycles.
AMSOIL, the leader in synthetic lubrication, produced the world's first API qualified synthetic motor oil in
1972. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your
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Package sizes include:
1-Quart Bottles (case of 12)
Harley Davidson Recommendations
Reduces Friction, Heat and Wear
In high heat conditions, engine protection is not sacrificed with AMSOIL Synthetic Motorcycle Oil. It has the best
high temperature film strength (see High Temperature Viscosity Protection graph below) of all oils tested and
contains a heavy treatment of anti-wear additives to reduce wear regardless of the operating conditions (see Wear
Comparison graph at right). AMSOIL 10W-40 Motorcycle Oil is thermally (heat) stable and contains maximum levels of
oxidation inhibitor additives. It is extremely resistant to breakdown and engineered to prevent damaging sludge and
carbon deposits for superior engine cleanliness.
Provides Extreme Pressure Quality Protection for Gears
With AMSOIL Synthetic Motorcycle Oil, there is no need for separate transmission lubricants. It is absolutely shear
stable and will not thin out from mechanical activity. AMSOIL MCF performs like a gear lube without the negative
effects of extreme pressure additives. In the FZG gear test, AMSOIL MCF achieved a perfect score with a “zero” wear
rating (see photo below).
Delivers Superior Rust Protection
Motorcycles are prone to rust from storage, humidity and short drives. Rust can cause major damage such as
uncontrolled wear, compression loss and blow-by. Good rust protection, however, comes by design and is not natural
to engine oils. Unlike many motorcycle oils, AMSOIL MCF contains special anti-rust agents. It passes the ASTM
D-1748 humidity cabinet rust test and clearly demonstrates superior rust protection (see photos below).
Provides Excellent Wet Clutch Performance
AMSOIL 10W-40 Synthetic Motorcycle Oil contains no friction modifiers and promotes smooth shifting and positive
clutch engagement. It is engineered to control heat and prevent slippage and glazing, helping improve clutch life,
while meeting the wet-clutch frictional requirements of JASO Standard T903:2006, MA/MA2 and ISO-L-EMA2 of ISO
Standard 24254:2007. 10W-40 Synthetic Motorcycle Oil High-Performance Lubricant for Engines and Transmissions
AMSOIL 10W-40 Synthetic Motorcycle Oil is a premium oil designed for those who demand the absolute best lubrication
for their motorcycles. It is the result of extensive research and is specially formulated to excel in all areas
unique to motorcycles, including high engine rpm, wet-clutch lubrication, extremepressure regions of gears and rust
common to short drives and storage. AMSOIL 10W-40 Synthetic Motorcycle Oil is multi-functional and fulfills the
requirements of both domestic and foreign motorcycles.
AMSOIL Synthetic 10W-40 Motorcycle Oil is recommended for liquid or air-cooled 4-stroke engines. It meets SAE
80W/90, API GL-1 gear oil requirements and is recommended for transmissions on both 4- and 2-stroke motorcycles.
AMSOIL MCF is recommended for Honda®, Kawasaki®, Yamaha®, Suzuki®, BMW®, Husqvarna®, Victory® and other motorcycles
where 10W-40 or 20W-40 engine oils or SAE 80W/90, GL-1 gear oils are used. Not recommended where an API GL-4 or
GL-5 gear oil is required.
AMSOIL Synthetic 10W-40 Motorcycle Oil is compatible with conventional and synthetic motor oils;
however, mixing oils may shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not
support extended drain intervals where oils have been mixed.
Aftermarket oil additives are not recommended for use with AMSOIL motorcycle
For “on-road” use in engines and transmissions, change AMSOIL MCF and AMSOIL engine oil filter at twice the
motorcycle manufacturer change interval or one year, whichever comes first. Change other brand oil filters at
For “off-road” use in engines and transmissions, change AMSOIL MCF at the standard
motorcycle manufacturer change interval.
For racing or in engines modified from the original factory design, no change
interval recommendation is made. Oil changes are at the owner’s discretion.
|TYPICAL TECHNICAL PROPERTIES
|SAE 10W-40 Synthetic Motorcycle
|Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
|Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
|Viscosity Index (ASTM D-2270)
|Pour Point °C (°F) (ASTM D-97)
|Flash Point °C (°F) (ASTM D-92)
|High-Temperature/High-Shear Viscosity (ASTM D5481 @ 150°C, 1.0 X 106 s-1),
|Four-Ball Wear Test (ASTM D-4172 @ 40 kgf, 150°C, 1800 rpm, 1 hr), Scar, mm
|FZG (ASTM D-5182), Load State Pass (Wear in mm)
||13 (0 mm)
|Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
|Foam (ASTM D-892, Sequence I, II & III)
|Shear Stability Kurt Orbahn (ASTM D-6278), % viscosity change 120 cycles
|Rust Test - Humidity Cabinet (ASTM D-1748)
||No Rust, PASS
|Total Base Number