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⚙️ Shift smarter, not harder — unlock peak manual transmission performance!
Red Line 50504 MT-85 is a premium 75W85 GL-4 manual transmission gear oil designed for high-performance protection and smoother shifting. Its synthetic polyol ester base and sulfur-free GL-4 formula safeguard brass synchros and extend transmission life, making it ideal for cold climates and popular manual cars like Nissan 350Z/370Z and Mitsubishi Evolution.






| ASIN | B004D4URV6 |
| Best Sellers Rank | #42,144 in Automotive ( See Top 100 in Automotive ) #500 in Automotive Oils |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (837) |
| Global Trade Identification Number | 00083522505048 |
| Included Components | (1063027) MT-85 75W85 GL-4 GEAR OIL - QUART |
| Item Form | Oil |
| Item Type Name | ENGINE OIL |
| Item Weight | 1.95 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Polyol Ester |
| Model Number | RED50504 |
| Number of Items | 1 |
| Part Number | 50504 |
| Recommended Uses For Product | transmission oil |
| SAE J300 Viscosity Grade | 5W-30 |
| Specific Uses For Product | Differential oil, final drive oil, gear oil, transfer case fluid, Nissan 350Z and 370Z, Mitsubishi Evolution, Hyundai, Kia, Quaife synchro manual trans applications |
| UPC | 083522505048 |
| Unit Count | 32 Fluid Ounces |
| Viscosity | 75W85 |
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