







⚙️ Shift smarter, drive smoother — the ultimate gear oil upgrade!
Red Line50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant is a premium 1-quart gear oil designed to protect and extend the life of manual transmissions. Its 75W-90 viscosity ensures optimal lubrication, while a brass-safe GL-4 formula prevents synchro damage and guarantees smoother, quicker shifts even in cold conditions. Trusted since 1979, this lubricant is compatible with GL-1, GL-3, and GL-4 applications, making it the go-to choice for professional-grade transmission care.






| Material | Brass |
| Brand | Redline Oil |
| Package Information | Bottle |
| Liquid Volume | 32 Fluid Ounces |
| Item Weight | 1.7 Pounds |
| Recommended Uses For Product | Lubricant,Lube |
| Viscosity | 75W90 |
| Specific Uses For Product | Lubricant for manual transmissions and transaxles, Prevent corrosion, Enable smooth shifting, Provide gear protection |
| Item Form | Fluids,Oil |
| Global Trade Identification Number | 00083522503044 |
| Manufacturer | Yukon Gear & Axle |
| Unit Count | 32.0 Fluid Ounces |
| UPC | 083522503044 |
| Number of Items | 1 |
| Model | MT90 75W90 GL4 QT |
| Item Weight | 1.7 pounds |
| Product Dimensions | 9 x 4 x 4 inches |
| Item model number | 50304 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 50304 |
| OEM Part Number | 50304 |
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