Formulated with high viscosity index paraffinic and synthetic base stocks plus specialty performance additives, HELIOS 80W-90 GL-5 GEAR OIL exceeds the American Petroleum Institute’s specifications per the GL-5 category. Specialty anti-scuffing additives provide advanced protection and lubricity in extreme pressure conditions. Additionally, HELIOS 80W-90 GL-5 GEAR OIL resists rust, oxidation, foaming, and varnish. HELIOS 80W-90 GL-5 GEAR OIL is a multi-grade lubricant designed for use in all seasons.