Description Silkolene Comp-Gear Oil Semi-synthetic ester technology based, gear oil Developed primarily for competition offroad motorcycles Formulated for use with aluminum or steel clutch plates Reduced oil contamination from less clutch and gear wear Eliminates clutch drag and improves clutch and gear operation Meets API-GL3 and GL4 requirements for motorcycles and ATVs SAE Rating 80W90 (Gear), 10W40 (Engine) 1 Liter