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⚙️ Shift smoother, last longer — the gear oil pros trust!
Red Line 50305 MT-90 is a synthetic 75W-90 GL-4 manual transmission lubricant designed to enhance gear protection and extend synchronizer life. Its unique formula ensures quicker, smoother shifts even in cold conditions, while being safe for brass synchros by eliminating reactive sulfurs. Rated for high-temperature performance up to 300°F, this 1-gallon 4-pack is ideal for GL-1, GL-3, and GL-4 gear oil applications, making it the go-to choice for professional-grade transmission care.
| ASIN | B000T9TMX8 |
| Best Sellers Rank | #1,105,380 in Automotive ( See Top 100 in Automotive ) #487 in Gear Oils |
| Brand | Red Line |
| Brand Name | Red Line |
| Compatible Material | Brass |
| Container Type | Pail |
| Customer Reviews | 4.7 out of 5 stars 10 Reviews |
| Global Trade Identification Number | 00083522503259 |
| Included Components | MT-90 75W-90 GL-4 |
| Item Form | Fluids,Liquid,Oil |
| Item Weight | 10 pounds |
| Liquid Volume | 512 fluid ounces |
| Manufacturer | Red Line |
| Material | Synthetic |
| Model Number | 50325 |
| Number of Items | 4 |
| Number of Packs | 4 |
| Package Information | Pail |
| Part Number | 50325 |
| Recommended Uses For Product | Lubricant |
| SAE J300 Viscosity Grade | 75W-90 |
| UPC | 083522503259 |
| Unit Count | 512 Fluid Ounces |
| Upper Temperature Rating | 300 °F |
| Viscosity | 75W90 |
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