25W/60 Multi-viscosity Klotz® American V-Twin Synthetic TechniPlate® Lubricant is custom-formulated for the Harley Davidson® air-cooled engine. Exceeds all warranty requirements for Harley Davidson® engines. Use of this lubricant provides certified warranty compliance and protection. Will not shear like petroleum oils and stays-in-grade even under the most stressful situations. High power output and piston speeds of the V-Twin engine demand the protection Klotz® TechniPlate® advanced lubrication technology provides.