Specification and approval
Oils meeting API MT-1
API category for non-synchronised manual transmissions in trucks and buses, with high thermal stability.
11 oils meet this specification according to the manufacturer's data sheet.
| Oil | Class | Viscosity 100 °C |
|---|---|---|
| Castrol Syntrax Universal Plus 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15 |
| Elf Tranself Syn FE 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15 |
| Liqui Moly Fully Synthetic Hypoid Gear Oil (GL4/5) 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15.6 |
| Mobilube 1 SHC 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15.1 |
| Shell Spirax S6 AXME 75W-90API GL-5, MT-1 | 75W-90 | 15.2 |
| Valvoline Heavy Duty TDL Pro 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15 |
| Valvoline TDL 75W-90API GL-4, GL-5, MT-1 | 75W-90 | 15 |
| Ravenol MTF-2 75W-80API GL-4, MT-1 | 75W-80 | 9.1 |
| 77 Lubricants Autogear Oil Syn LS 75W-140API GL-5, MT-1 | 75W-140 | 25.9 |
| Chevron Delo Syn-Gear XS 75W-140API GL-5, MT-1 | 75W-140 | 26 |
| Valvoline SynGear 75W-140API GL-5, MT-1 | 75W-140 | 26.03 |
The list is based on the oil makers' data sheets. Before buying, always check the specification and viscosity in your vehicle manual.