Using a lubricant with a viscosity that is too low can result in inadequate film strength, while a viscosity that is too high may cause increased drag and reduced fuel economy. This category was developed to address the requirements of vehicles manufactured primarily before the widespread adoption of GL-5 specifications.
Synthetic GL-4 Gear Oil Benefits for Modern Drivetrains
This particular classification denotes a specialized gear lubricant engineered to meet the demands of specific differential systems. GL-5 formulations contain higher levels of sulfur and phosphorus compounds designed to handle high sliding speeds and shock loads typical in modern hypoid gears.
Distinguishing GL-4 from GL-5 and Other Ratings A common point of confusion exists between GL-4 and GL-5 gear oils, as both are prevalent in the heavy-duty lubricant market. The defining characteristic of a GL-4 lubricant is its ability to provide adequate protection against pitting and scuffing under moderate shock loads and sliding conditions.
Unlocking the Advantages of Synthetic GL-4 Gear Oil
These additives, while effective, can sometimes corrode yellow metals found in brass synchronizers, which is why GL-5 is not recommended for manual transmissions. Compatibility with Modern Vehicles While often associated with older vehicle models, GL-4 gear oil remains relevant for specific drivetrain configurations found in contemporary automotive designs.
More About Gl-4 gear oil
Looking at Gl-4 gear oil from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Gl-4 gear oil can make the topic easier to follow by connecting earlier points with a few simple takeaways.
