AMSOIL Synthetic 20w50 Motorcycle Oil (MCV) is a premium oil designed for those who demand the absolute best motorcycle oil. Amsoil motorcycle oil is the preferred Harley Davidson oil and BMW motorcycle oil as claimed by our many riders. This motorcycle oil is a result extensive research, and it is specially formulated to excel in all areas unique to motorcycles, including high temperatures of air-cooled engines such as Harley Davidson® V-Twin, wet clutch lubrication, extreme pressure regions of gears and chains and rust common to short trips and storage.

Look at: Amsoil Recommended Oils for Harley Davidson

AMSOIL Motorcycle Engine Oil is multi-functional and fulfills the requirements of both domestic and foreign motorcycles. It outperforms other conventional and synthetic motorcycle oils.

Read The: Motorcycle Oil White Paper (1MB PDF)

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 motorcycle.

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 on reverse). AMSOIL Synthetic 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.

20w50 Motorcycle Oil High Temperature Viscosity Protection Higher values reflect better film strength ASTM Test Method D-4683 March 16, 2005	20w50 Motorcycle Oil Wear Comparison ASTM Test Method D-4172 March 16, 2005

Provides Extreme Pressure Quality Protection for Gears and Chains

With AMSOIL MCV, there is no need for separate transmission or primary chaincase lubricants. It is absolutely shear stable and will not thin out from mechanical activity. AMSOIL MCV performs like a gear lube without the negative effects of extreme pressure additives.

In the FZG gear test, AMSOIL Motorcycle Oil achieved a perfect score with a “zero” wear rating (see photo below).

FZG Gear Test (ASTM D-5182) AMSOIL 20W-50 (MCV)	FZG Gear Test (ASTM D-5182) Motul 300V 15W-50

Delivers Superior Rust Protection
Motorcycles are prone to rust from storage, humidity and short drives. Rust can cause major damage such as roller bearing failure, 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 Synthetic 20w50 Motorcycle Oil contains special anti-rust agents. It passes the ASTM D-1748 humidity cabinet rust test and clearly demonstrates superior rust protection (see photos below).

Rust Test ASTM D-1748 AMSOIL 20w50 (MCV)	Rust Test ASTM D-1748 Castrol GPS 20w50

Provides Excellent Wet Clutch Performance
AMSOIL MCV contains no friction modifiers and promotes smooth shifting and positive clutch engagement. AMSOIL Synthetic Motorcycle Oil MCV controls heat and prevents slippage and glazing, and its high TBN resists acids that can degrade clutch material, helping improve clutch life.

APPLICATIONS
AMSOIL 20w50 Motorcycle Oil is recommended for air or liquid cooled 4-stroke engines. It meets SAE 90, API GL-1 gear oil requirements and is recommended for transmissions and primary chaincases. AMSOIL Motorcycle Oil is recommended for Harley Davidson®, Buell®, KTM, Ducati®, Aprilia®, BMW®, Triumph® and other motorcycles where 15w50 or 20w50 engine oils or SAE 90, GL-1 gear oils are used. Not recommended where an API GL-4 or GL-5 gear oil is required.

MIXING AMSOIL
AMSOIL Synthetic 20w50 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 Synthetic  Motorcycle Oil.

SERVICE LIFE
Recommended for use up to twice the motorcycle manufacturer change interval (miles/hours) or one year, whichever comes first, in engines, transmissions and primary chaincases. For Big Twin Harley-Davidson transmissions only, follow the Harley-Davidson recommended drain interval for synthetic oil of up to 20,000 miles or one year, whichever comes first. When using an engine filter other than AMSOIL motorcycle oil filter, change the filter at standard intervals.

For “off-road” use, change AMSOIL Synthetic Motorcycle Oil at motorcycle manufacturer intervals.

Racing or modified engines are excluded from extended drain interval recommendations. Oil changes are at the owner’s discretion.

TYPICAL TECHNICAL PROPERTIES
AMSOIL Synthetic 20w50 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
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
FZG (ASTM D-5182), Load Stage Pass (Wear in mm)	13 (0mm)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800)	3.89
Foam (ASTM D-892, Sequence I, II & III)	0/0/0
Shear Stability Kurt Orbahn (ASTM D-6278), % viscosity change 120 cycles	0.25
Rust Test - Humidity Cabinet (ASTM D-1748)	No Rust, Pass
Total Base Number	11

                                  

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