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
Important: Product information, kit contents and compatibility are provided as a guide and may contain errors or omissions. Please verify that this part and any included components are correct for your vehicle before installation. For full details see our Website Disclaimer (Errors & Omissions).