Sierra Type "C" Lower Unit Gear Lube Formulated for older model outboards and I/O's equipped with electric shift.; Reduces friction and protects gears, bearings and other gearcase components.; Replaces: OMC (System Matched) Premium Blend; Sierra Type C Lower Unit 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!// Sizes Available 10 oz.; Quart;