HPF PRO is the factory fill gearcase lubricant for Evinrude E-TEC outboards. Use HPF PRO gear case lubricant for high performance outboards, commercial fleets, rental operations and stern drives. A high-viscosity blend of enhanced friction reducers, anti-foam agents, and synthetic E-P additives systematically deliver exceptional durability and reliability with ultimate film strength. Marine-specific inhibitors and emulsifiers deliver unequaled protection against corrosion and lubricant breakdowns caused by water intrusion. Follow the procedures specified in the owner's manual or service manual for gearcase lubricant service.