Red Line 75W90 GL-5 Gear Oil

Red Line 75W90 GL-5 Gear Oil is a fully-synthetic, high-performance gear lubricant engineered for a wide range of passenger cars, light trucks, and racing vehicles. This formulation is the most popular in the Red Line gear oil lineup, offering proven performance and protection in thousands of applications.

• Contains additional friction modifiers for compatibility with clutch-type limited-slip differentials; in most cases, no supplemental friction modifiers are required.
• Not recommended for use in most manual transmissions or transaxles in passenger vehicles, as the high slipperiness may cause synchronizer mesh issues and shifting problems.
• Suitable replacement for differentials requiring 80W90 or SAE 90 gear oil.
• Meets or exceeds API GL-5, GL-6, MT-1, MIL-L-2105E, SAE J2360, and Chrysler MS-9763 specifications.

Product Features

• Fully-synthetic formula based on polyol ester base stocks for excellent lubrication under extreme conditions.
• Extreme pressure additives ensure maximum protection for road and racing applications.
• Friction modifiers (except NS) deliver proper limited-slip operation and reduce sliding friction in hypoid gears for lower operating temperatures.
• High viscosity index maintains consistent viscosity and film thickness across temperature changes.
• Superior shear stability and oxidation resistance compared to conventional and other synthetic gear oils.
• Engineered for optimal differential efficiency, reduced wear, longer drain intervals, and improved mileage.

Technical Details