Description
SHELL SPIRAX S4 AT 75W-90
Premium Synthetic Blend API GL-4/GL-5 Automotive Gear Oil for Manual Transmissions, Axles, Differentials & Heavy-Duty Drivetrain Applications
Product Description
Shell Spirax S4 AT 75W-90 is a premium synthetic blend automotive gear lubricant formulated using advanced base oil technology and a high-performance additive system to provide excellent protection for manual transmissions, axles, differentials, and drivetrain components.
The SAE 75W-90 multigrade formulation provides excellent viscosity stability across a wide temperature range, combining:
- Strong oil film protection at high temperatures
- Excellent low-temperature fluidity
- Reduced wear
- Smooth gear operation
- Long lubricant service life
It is designed for heavily loaded automotive transmissions and axle applications requiring API GL-4, GL-5, or MT-1 performance.
Features and Benefits
Excellent Gear Protection
The advanced extreme pressure (EP) additive system provides:
- Superior protection against gear tooth wear
- Excellent load-carrying capability
- Reduced scuffing under severe operating conditions
- Protection against shock loading
Outstanding Thermal and Oxidation Stability
The synthetic blend formulation provides:
- Resistance to high-temperature oxidation
- Reduced sludge and deposit formation
- Longer oil drain intervals
- Cleaner transmission components
Excellent Low-Temperature Performance
The SAE 75W viscosity rating provides:
- Faster oil circulation during cold starts
- Smooth gear engagement at low temperatures
- Reduced friction during start-up operation
The pour point is approximately -42°C, supporting operation in cold environments.
Stable Viscosity Performance
The high viscosity index formulation provides:
- Minimal viscosity change with temperature variation
- Strong lubricating film at operating temperature
- Reliable protection across different climates
Anti-Rust and Corrosion Protection
Protects internal components against:
- Rust formation
- Corrosion
- Moisture-related damage
helping improve gearbox and axle reliability.
Applications
Shell Spirax S4 AT 75W-90 is recommended for:
Automotive Transmissions
- Manual gearboxes
- Synchronised transmissions
- Non-synchronised transmissions
Axle Systems
- Heavy-duty axle drives
- Differentials
- Final drives
Commercial and Industrial Vehicles
- Trucks
- Buses
- Vans
- Light commercial vehicles
- Heavy-duty transport equipment
Specifications & Approvals
Meets or exceeds:
- API GL-4
- API GL-5
- API MT-1
- ZF TE-ML 12E
- ZF TE-ML 17B
- ZF TE-ML 19B
Typical Physical Characteristics
| Property | Typical Value |
|---|---|
| Oil Type | Synthetic Blend Gear Oil |
| SAE Viscosity Grade | 75W-90 |
| Density @ 15°C | 875 kg/m³ |
| Kinematic Viscosity @ 40°C | 92.6 mm²/s |
| Kinematic Viscosity @ 100°C | 15.4 mm²/s |
| Viscosity Index | 177 |
| Flash Point (COC) | 170°C |
| Pour Point | -42°C |
Performance Characteristics
- Premium synthetic blend gear lubricant
- API GL-4 / GL-5 performance
- Excellent extreme pressure protection
- High shear stability
- Excellent low-temperature performance
- Smooth shifting characteristics
- Strong anti-wear protection
- Good oxidation resistance
- Excellent corrosion protection
- Suitable for heavily loaded transmissions and axles
Storage & Handling
- Store in original sealed containers.
- Protect from moisture, dust, and contamination.
- Store in a cool, dry location away from direct sunlight.
- Keep containers tightly closed when not in use.
Health & Safety
When used as intended and handled according to good industrial hygiene practices, Shell Spirax S4 AT 75W-90 presents minimal health risk.
Avoid prolonged skin contact and follow the recommendations provided in the Safety Data Sheet (SDS).
