Stock No. 62629. SAE 80W-90, API GL-5 Performance. Recommended for most outboards & stern drives. Pennzoil Marine High Viscosity Lower Unit Gear Lube with lower unit gear lube pump. Pennzoil Marine Lower Unit Gear Lube is formulated for the high performance requirements of most stern drives and outboard gear boxes. It's formulated with special antiwear additives and corrosion inhibitors to protect gears and bearing surfaces. This product has been formulated to meet API Service GL-5.