GP Gear Oils are premium multipurpose lubricants designed for a wide range of gearboxes and transmission systems in vehicles and industrial machinery. They provide excellent resistance to oxidation and ageing, ensuring long service life even under high-load and high-temperature operating conditions. These oils protect transmission components against wear and provide effective rust and corrosion protection, making them suitable for gear systems containing yellow metals. GP Gear Oils are suitable for manual transmissions, axles, transfer cases, and other transmission systems requiring API GL-4 performance. They are available in a range of viscosity grades. GP 75W-85 Gear Oil is a fully synthetic lubricant specially developed for manual transmissions in Japanese vehicles, including Subaru and Mitsubishi, as well as many European vehicles such as Peugeot.