This classification denotes a lubricant that has passed rigorous API (American Petroleum Institute) and OEM (Original Equipment Manufacturer) tests for severe service conditions, ensuring protection against wear, pitting, and scuffing under high loads. Using GL-5 in a transmission designed for GL-4 can sometimes lead to issues such as rough shifting or clutch slippage due to the heightened friction characteristics of the EP additives.
Anti Corrosion Metal Protection with GL-5 Gear Oil
Excellent thermal stability to prevent breakdown at high operating temperatures. Compatibility with seals and gaskets found in modern transmissions.
This specification is reserved for gears operating under the most demanding conditions, typically involving sliding motion such as those found in hypoid gears common in rear differentials. The additive package is where the magic happens for GL-5; it includes sulfur-phosphorus compounds that create a reactive layer on gear surfaces, ZDDP (zinc dialkyldithiophosphate) for anti-wear protection, and rust inhibitors that keep moisture at bay.
GL-5 Gear Oil Anti Corrosion Metal Protection
Effective lubrication of hypoid gears where sliding action is prevalent. Selection and Maintenance Best Practices.
More About Gl5 gear oil
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