Harley Archives - AMSOIL Blog

Watch how AMSOIL performs in this 2019 Harley with a Milwaukee-Eight 107 engine after 1,000 miles of extreme-heat testing on...

June 15, 2020

We submitted AMSOIL synthetic motorcycle oil and Harley-Davidson SYN3 oil to independent testing. Who came out on top? Find out...

March 12, 2020

Engine detuning to prevent knocking can lead to rough idle and poor throttle response. Here's an easy solution to motorcycle...

July 12, 2016

What Does Oil Viscosity Mean

Oil viscosity is the measure of its resistance to flow. How quickly or slowly motor oil flows affects how well it protects your engine.

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