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Red Line 50304 MT-90 is a premium synthetic 75W-90 GL-4 manual transmission and transaxle lubricant designed to enhance gear protection, extend synchro life, and deliver smoother, quieter shifts. Its unique formula is safe for brass synchros, eliminates notchy shifting even in cold conditions, and withstands high heat and load, making it the go-to choice for performance-minded drivers seeking reliable, long-lasting transmission care.






| ASIN | B003P550IE |
| Best Sellers Rank | #33,840 in Automotive ( See Top 100 in Automotive ) #59 in Gear Oils |
| Brand Name | Red Line Oil |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (429) |
| Item Form | Fluids,Oil |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Synthetic |
| Model Number | 50304 |
| Number of Items | 4 |
| Part Number | 50304 |
| Recommended Uses For Product | Gear Oil |
| SAE J300 Viscosity Grade | 75W-90 |
| Specific Uses For Product | Manual transmissions and transaxles, particularly in vehicles from Nissan, Toyota, and Mazda, and in conditions that require gear protection, smooth shifting, and longer synchro life. |
| UPC | 737534816608 |
| Unit Count | 128.0 Fluid Ounces |
| Viscosity | 75W90 |
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