MT-90 75W90 GL-4 Fully Synthetic Gear Oil 5L - Manual Transmission & Diff Fluid
7427248194200
- Dispatched in 2-3 days
- 30 Day Return Policy
- In stock, ready to ship
- Backordered, shipping soon
MT-90 75W90 GL-4 Gear Oil 5L
Fully Synthetic Premium Performance Lubricant
This MT-90 grade gear oil is a modern, high-performance lubricant engineered from a premium blend of synthetic base oils and shear-stable viscosity index improvers. Designed specifically for applications requiring an API GL-4 specification, it provides the perfect balance of protection and friction coefficient to ensure smooth gear engagement and long-term durability.
Key Benefits
- β Eliminates notchy shifting, even in cold climates
- β Superior film strength for gear tooth protection
- β Fully compatible with mineral-based gear oils
- β High thermal stability for track or heavy-duty use
Technical Specs
| Viscosity Grade | SAE 75W-90 |
| API Service Class | GL-4 |
| Volume | 5 Litres |
| Pour Point | -45Β°C |
| Flash Point | 224Β°C |
Compatibility / Fitment Guide
| Application Type | Recommended For | Notes |
|---|---|---|
| Manual Transmissions | Toyota, Mazda, Nissan, Mitsubishi, VW, Audi | Excellent for brass synchro boxes |
| Transaxles | FWD Drivetrains calling for 75W90 GL-4 | Balanced friction for smooth shifting |
| Differentials | Non-Hypoid gear sets / Marine applications | Verify API requirement (GL-4 vs GL-5) |
OEM Cross Reference
| Audi / VW | G 052 911 |
| BMW | 81 22 9 407 305 |
| Ford | WSS-M2C203-A1 / M2C175-A |
| GM | 12345371 / 12345724 |
| General Spec | GL-1, GL-3, GL-4 |
Questions & Answers
Is this oil safe for brass synchronizers?
Yes. Unlike standard GL-5 oils which contain aggressive sulfur compounds that can corrode "yellow metals," this GL-4 formula is specifically engineered to be non-corrosive and safe for all manual gearboxes containing brass components.
Can I use this in a differential that requires GL-5?
No. If your differential requires a GL-5 rating (common in heavy-duty hypoid gear sets), you should use a dedicated GL-5 lubricant. This MT-90 fluid is designed for GL-4 applications where smooth shifting is a priority.
Does this oil contain friction modifiers?
Yes, it includes advanced friction modifiers specifically tuned to help synchronizer rings engage efficiently, resulting in faster and smoother gear changes even in cold weather.
Note: Always verify the required oil viscosity and API service class in your vehicle or equipment owner's manual before use. Distributed by 4boats.co.uk.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
