SIERRA HI-PERFORMANCE SYNTHETICLOWER UNIT GEAR LUBE•Synthetic blended marine formulation reduces operating friction for increased performance and protection of gears bearings and other gear case components •Recommended for use in high performance and high load operating conditions in both outboard and I/O lower units •Designed to suprass the performace of the O. E. Hi-Perfomance gear lubricants •GL-5 Rated •Replaces: Mercury (Quicksilver) Hi-Performance Blend OMC (System Matched) Ultra-HPF Blend Yamaha (Yamalube) LUB-GEARL-11-00 •Size: Quart •12 per case