Protection against extreme heat is of the utmost importance in motorcycle applications.
The air-cooled V-twin engines used in Harley-Davidson motorcycles can get extremely
hot, particularly when idling or traveling at low speeds. If a motorcycle oil cannot
withstand hot operating temperatures, its ability to provide adequate engine protection
is compromised. AMSOIL Synthetic Motorcycle Oil is formulated to withstand extreme
heat conditions beyond the hottest temperatures motorcycles typically experience,
providing peace of mind that motorcycles receive outstanding protection and performance
no matter how extreme the operating conditions.
To demonstrate its extreme-heat protection qualities, AMSOIL 20W-50 Synthetic Motorcycle
Oil (MCV) was subjected to a dynamometer test designed to simulate conditions even
more extreme than the demanding stop-and-go driving conditions of a motorcycle rally
or parade route.
A 2012 Harley-Davidson FXDB Dyna Street Bob motorcycle equipped with AMSOIL 20W-50
Synthetic Motorcycle Oil was operated for 68.5 minutes at low speeds, with significant
idle time broken by engine revving. Like most Harley-Davidson motorcycles, the Dyna
Street Bob features an air-cooled V-twin engine, which relies on cooling fins arrayed
along the cylinder walls to conduct heat away. To create the most-severe operating
conditions possible, the electronic temperature controls, which safeguard the motorcycle
when temperatures reach dangerous levels, were deactivated. The test subjected the
oil and engine components to intense heat not normally experienced in the real world,
with cylinder temperatures reaching more than 500°F.
AMSOIL Withstands the Heat
The extreme temperatures were no match for AMSOIL Synthetic Motorcycle Oil. After
nearly 70 minutes of torturous testing and heat exposure, oil analysis revealed
no change in oil viscosity and only minor levels of oxidation, TBN depletion and
Not only did AMSOIL Synthetic Motorcycle Oil prevent the engine from overheating
and seizing, it did so without losing chemical integrity or ability to protect vulnerable
engine components, demonstrating that it provides outstanding protection even in
compromising and severe high-temperature riding and idling conditions not experienced
by most riders.
Your bike should never get this hot. If it does, AMSOIL has you covered.