Description
Vehicle Compatibility
This product is an axle and differential gear oil selected by specification. Use only where the manufacturer specifies SAE 80W-90 and API GL-5. Confirm the required viscosity grade and GL rating in your owner’s manual before topping up or servicing.
- For axle drives and differentials requiring API GL-5
- Suitable for driveline units specifying SAE 80W-90 gear oil
- Commonly used for top-ups and maintenance where GL-5 80W-90 is explicitly required
If your vehicle has a limited-slip differential, confirm whether a dedicated LS fluid or additive is required. Do not substitute where GL-4 or an OEM-specific fluid is specified.
Specifications
| Brand | Castrol |
|---|---|
| Product | Castrol Transmax (Axle EPX) |
| Fluid Type | Axle / Differential Gear Oil |
| Capacity | 0.5 L |
| SAE Viscosity Grade | 80W-90 |
| API Specification | GL-5 |
| Information | Axle EPX |
| SKU | 3428950 |
Features
- API GL-5 extreme-pressure gear oil for compatible axle and differential applications
- SAE 80W-90 viscosity grade suited to driveline units specifying this gear oil
- Designed to help support protection under load when used to the correct specification
- Convenient 500ml bottle for top-ups, travel kits, and workshop use
Why Buy From Us
- Local South African stock
- 12-month warranty (manufacturing defects)
- Spec-check support available if you share your make, model, and whether it’s diff, axle, or transfer case use
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Confirm your driveline unit requires GL-5 and 80W-90 before use
- Clean around fill and drain plugs before opening to prevent contamination
- Fill to the manufacturer’s specified level only (avoid overfilling)
- If noise, vibration, or chatter occurs after top-up, re-check the required spec and LS requirements
- Dispose of used oil responsibly at an approved recycling facility