Should I Use 20W-50 or Gear Lube in My Harley Transmission?
Update- May, 2024– AMSOIL now offers a dedicated V-Twin Synthetic Transmission Oil. This product is identical in performance and protection to the AMSOIL V-Twin 20W-50. The V-Twin 20W-50 and the dedicated V-Twin Transmission Fluid offer identical transmission performance and protection. AMSOIL no longer lists the Severe Gear products as secondary transmission fluid options as suggested…



