MTL 75W80 GL-4 - Quart
- Popular replacement for and improvement over GM Synchromesh® (#12345349), Auto-Trak II® (#12378508) and Chrysler spec MS-9224
- Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
- Offers quicker shifts, A perfect synchronizer coefficient of friction
- Eliminates notchy shifting, even when cold
- High performance gear protection and longer synchro life
- Satisfies the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 30, 10W30 and 5W30
- Recommended for GL-1, GL-3 and GL-4 applications as well as where most special synchromesh fluids are specified
| API Service Class | GL-4 |
| SAE Viscosity Grade (Gear Oil) | 75W80 |
| Vis @ 40°C, cSt | 50.8 |
| Vis @ 100°C, cSt | 10.4 |
| SAE Viscosity Grade (Motor Oil) | 5W30 |
| Viscosity Index | 201 |
| Pour Point, °C | -50 |
| Pour Point, °F | -58 |
| Brookfield Viscosity @ -40°C, Poise | 120 |