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Keep your gearbox and differentials in peak condition with high-performance API GL-5 gear oil from Opie Oils. Designed for extreme pressure applications, API GL-5 transmission oil offers excellent protection against wear, corrosion, and high-temperature breakdown. Browse our full range below to find the ideal gear oil for your vehicle.
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79 Products (Viewing: 1 - 60 of 79)
GL-5 specification gear oils are made for severe conditions, containing up to 6.5% effective anti-scuffing additives. The general application of oils in this class is for hypoid gears with significant displacement of axes. The most common use of GL5 oils is in differentials, but they are often used in gearboxes and sometimes in transfer boxes.
There is a lot of out-of-date and incorrect information about GL5 oils being unsafe for use in a lot of gearboxes. If you are concerned about that, please contact our expert team for more details, but generally, gearboxes are fine with GL5 oils.
At Opie Oils, we stock a comprehensive selection of API GL-5 oil, with options from leading brands such as Castrol, Millers Oils, Red Line, and LIQUI MOLY. Whether you need a mineral, semi-synthetic, or fully synthetic formula, we have the perfect solution to meet your vehicle’s specifications.
Shop for GL-5 gearbox oil at Opie Oils today, and don’t forget to explore our full range of transmission fluids and differential oils to keep your vehicle running at its best.