High Performance Synthetic Blend Gear Lube by SierraSynthetic blended marine formulation reduces operating friction for increased performance and protection of gears, bearings and other gearcase components. Recommended for use in high performance engines. Sierra Hi-Performance gear lube has been designed to surpass the performance of the O.E. Hi-Performance gear lubricants. For the finest product available demand Sierra Hi-Performance gear lube.Sierra High Performance Synthetic Gear Lube FAQHow much gear lube does my engine need?It varies model to model, check out our Gear Lube Capacity Guide for more information and capacity charts!// Features: Color: Blue/Green; GL-5 Rated; Weight: 80W-90; Replaces: Mallory; 9-82501; Mercury (Quicksilver); Hi-Performance Blend ,92-858064Q01; OMC (System Matched); Ultra-HPF Blend; Yamaha (Yamalube); LUB-GEARL-11-00; High Performance Synthetic Oil SDS