20W60 MOTORCYCLE OIL- Recommended for V-twins that need more viscosity due to operation in extremely hot climates- Popular for Evos and Twin Cam engines with big bore kits, stroker kits or issues with valvetrain noise- Specifically blended for air-cooled V-Twin engines with traditionally wide clearances like Knuckleheads, Shovelheads and Panheads engines- Superior film strength through the use of ester base stocks for protection and ring seal- Extended drain intervals over other brands due to higher quality base stocks and excellent dispersants