AMSOIL Signature Series

AMSOIL vs. Harley-Davidson Oil: How We Perform

AMSOIL Signature Series, Synthetic Motor Oil, Synthetic oils /

AMSOIL 20-50 V-TWIN Motorcycle Oil surpassed Harley Davidson SYN3 motorcycle oil 6X better for much superior protection in independent lab tests. Especially loss of viscosity, compensator wear, and transmission wear. With AMSOIL 20-50 there was no “ticking” or “thunking” noise when tested. Harley Engines ran cooler and shifted smoother with Amsoil. This article discusses the […]

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Should I Use a Lighter Winter Oil Weight?

AMSOIL Signature Series, Synthetic Motor Oil, Synthetic oils /

AMSOIL recommends using a lighter winter oil weight when the temperatures drop. This improves cold starts and maximizes wear protection at startup. Synthetic oils provide better cold starts because petroleum-based oils contain wax. Wax thickens when it gets cold. Amsoil Signature series 5-30 will actually pour at -50 degrees F. Petroleum-based oils of the same

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