Custom formulated for the Harley Davidson Big Twin models. Exceeds all warranty requirements for Harley Davidson engines. Use of this lubricant provides certified warranty compliance and protection. TechniPlate technology reduces friction and absorbs gear shock loading and gear galling. Protects against wear and lowers transmission temperatures.100% synthetic Hypoid transmission lubricant offers improved thermal stability and contains extreme pressure lubricity systems to withstand shearing stress. One quart.