API SG, SL/CF, CG-4; JASO MA/MA2; ISO-L-EMA2; API GL-1
Advanced multi-functional formula for both domestic and foreign motorcycles. Excellent in air-cooled motorcycle engines due to high heat resistance. Can be used in engines, transmissions and the primary chain case. Not recommended where an API GL-4 or GL-5 gear oil is required.
AMSOIL 20W-50 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 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. AMSOIL Synthetic Motorcycle Oil is multifunctional 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 motorcycle.
A 2012 Harley Street Bob is put through some of the most extreme heat testing at the AMSOIL Mechanical Test Facility in an effort to see if and when AMSOIL 20W-50 motorcycle oil could fail.
Temps rose to 550 degrees, well above the average temp of 280-300 degrees. Watch to see how the oil held up after the extreme testing.
To prove its extreme-heat performance, AMSOIL 20W-50 Synthetic Motorcycle Oil was installed in a 2012 Harley-Davidson FXDB Dyna Street Bob motorcycle. After deactivating the electronic temperature controls to increase severity, the engine was subjected to extensive idle time broken by short bursts of engine revving to simulate the intense heat conditions of a rally or parade route. Despite little air flow and cylinder temperatures reaching more than 500°F, the oil maintained viscosity and delivered outstanding protection (see graph).
AMSOIL Synthetic Motorcycle Oil contains a heavy treatment of anti-wear additives to reduce wear regardless of the operating conditions. It is thermally (heat) stable and contains maximum levels of oxidation inhibitor additives. AMSOIL Synthetic Motorcycle Oil is extremely resistant to breakdown and engineered to prevent damaging sludge and carbon deposits for superior engine cleanliness.
With AMSOIL Synthetic Motorcycle Oil, 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 20W-50 Motorcycle Oil performs like a gear lube without the negative effects of extreme-pressure additives. In the FZG gear test, AMSOIL achieved a perfect score with a "zero" wear rating.
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 Motorcycle Oil contains special anti-rust agents. It passes the ASTM D1748 humidity cabinet rust test, demonstrating superior rust protection.
AMSOIL Synthetic 20W-50 Motorcycle Oil contains no friction modifiers and promotes smooth shifting and positive clutch engagement. It controls heat and helps prevent slippage and glazing, while its high TBN helps improve clutch life by resisting the acids that can degrade clutch material.
AMSOIL 20W-50 Synthetic Motorcycle Oil is recommended for air- or liquid-cooled four-stroke engines. It meets SAE 90, API GL-1 gear oil requirements and is recommended for transmissions and primary chaincases. AMSOIL 20W-50 Motorcycle Oil is recommended for Harley-Davidson®, Buell®, KTM®, Ducati®, Aprilia®, BMW®, Triumph® and other motorcycles where 15W-50 or 20W-50 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.
AMSOIL 20W-50 Synthetic Motorcycle Oil is compatible with other conventional and synthetic motor oils; however, mixing oils may shorten the oil’s life expectancy and reduce its 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 Oils.
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 Ea®, change the filter at standard intervals.
For off-road use, change AMSOIL 20W-50 Synthetic Motorcycle Oil at motorcycle manufacturer-recommended intervals. Racing or modified engines are excluded from extended drain interval recommendations. Oil changes are at the owner's discretion.
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.
This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.
TYPICAL TECHNICAL PROPERTIES
SAE 20W-50 Synthetic Motorcycle Oil (MCV)
|Kinematic Viscosity @ 100°C, cSt (ASTM D445)||20.1|
|Kinematic Viscosity @ 40°C, cSt (ASTM D445)||150.3|
|Viscosity Index (ASTM D2270)||155|
|Pour Point °C (°F) (ASTM D97)||-40 (-40)|
|Flash Point °C (°F) (ASTM D92)||240 (464)|
|High Temperature/High Shear Viscosity (ASTM D5481 @ 150°C , 1.0 x 106 s-1), cP||6.0|
|Four Ball Wear Test (ASTM D4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour), Scar, mm||0.4|
|FZG (ASTM D5182), Load Stage Pass (Wear in mm)||13 (0 mm)|
|Noack Volatility, % weight loss (g/100g) (ASTM D5800)||5.4|
|Foam (ASTM D892, Sequence I, II & III)||0/0/0|
|Shear Stability Kurt Orbahn (ASTM D6278), % viscosity change 120 cycles||0.25|
|Rust Test - Humidity Cabinet (ASTM D1748)||No Rust, Pass|
|Total Base Number||11.1|