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eBay£26.80Visit shop Red Line High Performance Synthetic 75W-85 Gear Oil - 1 US Quart 0.946 L
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The Red Line 75W85 GL-5 Fully Synthetic Gear Oil is designed for high-performance manual gearboxes, transfer cases, and differentials, especially those in racing applications. Its key benefit is reduced drag for maximized power output while offering superior protection to transmission components, even in demanding conditions. A potential consideration is its specialized formulation, best suited for specific gearbox types including those with Limited Slip Differentials (LSDs). This oil is a popular choice for race cars using Hewland LD-200 and FTR sequential transaxles, but also performs well in both race and road car hypoid differentials and transaxles.
| Model Part Number | 50109 |
|---|---|
| Brand | Red Line |
The primary benefit is reduced drivetrain drag, which helps to maximize power output, combined with high levels of protection for transmission components.
Yes, the formulation includes specific friction modifiers for use with plate-type limited-slip differentials (LSDs).
This oil is designed for non-synchro manual gearboxes. While it meets GL-5, always check your vehicle manufacturer's specific recommendations, as some synchromesh transmissions may require a different formulation or viscosity to ensure proper synchro operation.
GL-5 is an API (American Petroleum Institute) service classification for gear oils that indicates the oil is designed for hypoid gears and other high-pressure applications typically found in differentials.
This product comes in a 1 Quart (0.94 Litre) bottle.
It meets API GL-5, and is recommended for API G:-5, MT-1, MIL-L-2105E, SAE J2360, and specific manufacturer requirements like Acura, Alfa Romeo, Audi, Buick, and BMW/Mini 83 12 0 445.
It is suitable for road cars, particularly performance-oriented vehicles or those with differentials and gearboxes that specify GL-5 oil. However, its specialized formulation is optimized for high-stress conditions.
Verify that the correct viscosity (75W85) and specification (GL-5) oil has been used and that the transmission is designed for non-synchro operation. Ensure the oil level is correct. Consult vehicle service manual if issues persist.
Ensure the correct GL-5 oil is used and the level is adequate. If the noise is related to turns, confirm the oil's LSD additive package is functioning correctly or if bearing wear is the cause. Check for leaks.
Check that the fill and drain plugs are properly tightened. Leaks may indicate worn seals or gaskets which require replacement. Ensure the oil has not degraded seals (though synthetic oils are generally seal-friendly).
Ensure the oil was filled to the correct level and that the old oil was completely drained. Some performance benefits, like reduced drag, are subtle and may be more noticeable under high load or racing conditions. Verify compatibility with your specific gearbox.
Compatibility:
This gear oil meets API GL-5 specifications and is recommended for API G:-5, MT-1, MIL-L-2105E, SAE J2360. It is also approved or recommended for various manufacturers including Acura, Alfa Romeo, Audi, Buick, and BMW/Mini (83 12 0 445). Always consult your vehicle's owner's manual or a qualified mechanic to confirm GL-5 compatibility and specific viscosity recommendations for your transmission, differential, or transfer case. This oil is designed for non-synchro manual gearboxes and differentials, including those with LSDs.
Usage:
Ensure the vehicle is safely supported on jack stands if working underneath. Drain the old gear oil completely from the transmission, differential, or transfer case. Fill with the Red Line 75W85 oil to the manufacturer's specified level, typically to the bottom of the fill plug opening. Reinstall drain and fill plugs securely.
Care:
Gear oil does not require routine cleaning. However, regular inspection for leaks and periodic fluid changes according to your vehicle manufacturer's maintenance schedule are essential. Use a quality fluid extractor or pump for filling to ensure accurate oil level. Store the unused oil in its original container in a cool, dry place away from direct sunlight.
