Armada Full Synthetic Trans-Fluid 50 is a premium quality synthetic oil for manual transmissions and is formulated to provide excellent component protection and cold weather performance. Meets the following requirements: APIMT-1, GL-1 to GL-4, Recommended specs Eaton PS 164 rev.7; Navistar TMS 6816 Mack Truck TO-A Plus; Volvo I Shift/ 97305; ZF Freedomline