Engineered specifically for Harley-Davidson high-performance engines and other high-output V-Twin motors, spectro heavy duty platinum full synthetic uses our G4 technology to dramatically increase throttle response and horsepower. Formulated with a special additive package to combat high heat and stress which is found in air-cooled V-Twin engines. Exceeds All known OEM and Harley-Davidson warranty requirements.
Engineered specifically for Harley-Davidson high-performance engines and other high-output V-Twin motors, spectro heavy duty platinum full synthetic uses our G4 technology to dramatically increase throttle response and horse...
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