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eBay£27.99Visit shop Red Line 75W90 Limited Slip Diff Differential Transmission Gear Oil 57904 946ml
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The Red Line 75W90 Fully Synthetic Gear Oil is designed for drivers of performance and competition vehicles who need superior lubrication and protection for their rear differentials. Its key benefit is enhanced differential efficiency, leading to better economy and extended drain intervals, particularly for vehicles with clutch-type Limited Slip Differentials (LSDs). A potential caveat is that it's specifically formulated for differentials and may not be suitable for all transmission types.
| Model Part Number | 57909 |
|---|---|
| Brand | Red Line |
No, this product is specifically formulated for differentials and gearboxes, including those with clutch-type LSDs. It is not recommended for manual transmissions unless explicitly stated by the vehicle manufacturer.
Yes, this oil contains friction modifiers specifically designed to work with clutch-type LSDs in both road and competition applications, ensuring smooth operation.
Red Line 75W90 is suitable as a replacement for applications requiring 80W90 or SAE 90 gear oils.
The amount varies by vehicle. A typical rear differential holds around 1.5 to 2.5 quarts. This product is sold in 1-quart bottles. Always check your vehicle's service manual for the exact capacity.
Red Line Synthetic Oil products are typically warranted to be free from manufacturing defects. Refer to the official Red Line Oil website or product packaging for specific warranty details.
For normal road use, drain intervals can often be extended compared to conventional oils. However, for performance or track use, more frequent changes (e.g., every 10-20 track days or annually) are recommended. Always consult your vehicle's manual and consider your driving conditions.
Ensure the correct Red Line product is used for your specific differential and LSD type. If chatter persists with a clutch-type LSD, double-check that the correct amount of friction modifier is present (this oil includes it). If whine occurs, it might indicate mechanical issues with the differential itself or incorrect fluid level.
This is likely a mechanical issue with the seal, not the fluid. Inspect and replace worn seals. Ensure differential breathers are clear to prevent pressure buildup.
This oil is primarily for differentials. If experiencing issues in a manual transmission, consult the manual for the correct transmission fluid specification. Using gear oil in a manual transmission not designed for it can cause significant problems.
Compatibility:
This 75W90 gear oil is recommended for use in rear differentials and is suitable for applications that normally require an 80W90 or SAE 90 gear oil. Always consult your vehicle's owner's manual to confirm specific fluid requirements and compatibility, especially concerning LSD specifications.
Setup/Application:
Care:
Store the oil in a cool, dry place away from direct sunlight. Ensure the container is tightly sealed when not in use. Regularly check differential fluid levels as part of your vehicle's maintenance schedule. While Red Line oils are known for their longevity, adhere to recommended drain intervals based on driving conditions (e.g., shorter intervals for track use).
