Description
Vehicle Compatibility
This product is a high viscosity axle and differential gear oil selected by specification. Use only where the manufacturer specifies SAE 85W-140 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 applications specifying SAE 85W-140 gear oil
- Commonly used in heavier-duty driveline applications where a thicker gear oil is required (confirm spec)
Do not use where GL-4 is specified, and confirm limited-slip requirements if your differential requires a specific friction-modified oil.
Specifications
| Brand | Castrol |
|---|---|
| Product | Castrol Axle EPX |
| Fluid Type | Axle / Differential Gear Oil |
| Capacity | 500 ml |
| SAE Viscosity Grade | 85W-140 |
| API Specification | GL-5 |
| SKU | 3428890 |
Features
- API GL-5 extreme-pressure gear oil for compatible axle and differential applications
- SAE 85W-140 viscosity grade suited to driveline units specifying a higher viscosity gear oil
- Designed to help support protection under load when used to the correct specification
- Convenient 500ml bottle for top-ups 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 differential requires GL-5 and 85W-140 before use
- Clean around fill and drain plugs before opening to prevent contamination
- Fill to the manufacturer’s specified level only (overfilling can cause foaming and leaks)
- If your vehicle has a limited-slip differential, confirm whether a dedicated LS fluid or additive is required
- 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).