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 and little to no air moving
across the cylinders. 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.
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 wear.
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