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⚙️ Shift into the fast lane with gear oil engineered for winners!
Red Line 57904 75W90 Synthetic Gear Oil is a premium, high-performance lubricant designed for hypoid and limited-slip differentials. Featuring a synthetic polyol ester base and friction modifiers, it delivers superior wear protection, thermal stability up to 227°C, and optimized slipperiness for smooth gear operation. Trusted by racers and everyday drivers alike, this gear oil meets or exceeds API GL-5 and Chrysler MS-9763 standards, making it the go-to choice for enhanced drivetrain efficiency and durability.






| ASIN | B000CPCBF0 |
| Best Sellers Rank | 71,607 in Automotive ( See Top 100 in Automotive ) 171 in Gear Oils |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,526) |
| Flash Point | 227 Degrees Celsius |
| Global Trade Identification Number | 00083522579049 |
| Included Components | Gear Oil |
| Item Form | Oil |
| Item Weight | 771 g |
| Liquid Volume | 946 Millilitres |
| Manufacturer | Yukon Gear & Axle |
| Material | Synthetic |
| Recommended Uses For Product | Truck,Car |
| Specific Uses For Product | Differentials, Limited-slip differentials, Racing applications, Transmissions, Transaxles |
| UPC | 083522579049 |
| Unit Count | 1.0 Count |
| Viscosity | 75W90 |
D**S
Good stuff
Great lubricant, lasted in the car for several years.
F**U
Very good product.
Exellent
I**N
Five Stars
great product for a great price.
J**A
Five Stars
best oil for my e46 differential. Recommend on many forums.
C**E
Five Stars
Great product, delivered on time !
K**Y
Red line
After hearing about it on a MX5 Forum, I tried it and found it an excellent product. Noticeable difference in the Differential Gear.
M**U
Mejor aceite para mi diferencial
K**E
Red Line Gear Oil consistently delivers superior performance under high-stress operating conditions, making it an optimal choice for both professional and enthusiast-grade mechanical applications. Engineered with advanced synthetic formulations, this product offers exceptional thermal stability, shear resistance, and long-term protection across a wide range of gear systems. In real-world application, the oil has demonstrably improved drivetrain smoothness, reduced operating noise, and contributed to extended service intervals—resulting in reduced downtime and maintenance overhead. Its performance in high-load and high-temperature scenarios reinforces its reputation as a category leader in gear lubrication.
ふ**。
デフ特有のガリガリ音も少なく効きもとてもいい感じです。 夏場やサーキット走行するにはもっと固めのでもいいかもしれませんが街乗りではとても十分です!
D**N
Excellent customer service, perfect product
X**2
スバルサンバー4WDに入れていますが、ミッションオイル後のシフトフィールが良くなりました。