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⚙️ Shift into the future with STARFIRE – where power meets precision.
STARFIRE Full Synthetic SAE 50W HD Manual Transmission Oil is a premium 5-gallon pail designed for heavy-duty manual transmissions. Engineered to resist thermal breakdown and oxidation, it extends oil life and reduces maintenance frequency. Its advanced synthetic formula ensures smoother shifting, improved fuel economy, and superior wear protection, meeting API MT-1 and OEM specifications trusted by fleet operators and mechanics alike.










| ASIN | B01J8HR1CK |
| Best Sellers Rank | #65,671 in Automotive ( See Top 100 in Automotive ) #160 in Transmission Fluids |
| Brand Name | STARFIRE |
| Container Type | Pail |
| Customer Reviews | 4.5 4.5 out of 5 stars (203) |
| Item Form | Oil |
| Liquid Volume | 5 gallons |
| Manufacturer | StarFire Premium Lubricants |
| Material | Synthetic |
| Model Number | SF F/S 50W TO 5 Gallon |
| Number of Items | 1 |
| Part Number | SF F/S 50W TO 5 Gallon |
| Recommended Uses For Product | • API MT-1 • Eaton PS-164 Rev 7 • Navistar/International TMS 6816 • Mack TO-A Plus • MERITOR® O-81 (Publication TP-90014) • ZF Freedomline |
| SAE J300 Viscosity Grade | 50 |
| UPC | 810029022057 |
| Unit Count | 640 Fluid Ounces |
| Viscosity | 50W |
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