Description
Vehicle Compatibility
This is a 15W-40 engine oil commonly listed as Castrol GTX Diesel, selected by specification. Use only where the manufacturer specifies SAE 15W-40 viscosity and API CF-4 (diesel) and/or API SL (petrol). Confirm the required viscosity and API category in your owner’s manual before servicing or topping up.
- For diesel engines requiring API CF-4
- Also suitable for petrol engines requiring API SL where 15W-40 is specified
- Use where SAE 15W-40 engine oil is specified
Do not substitute if your engine requires a different viscosity grade, ACEA category, or OEM approval not listed here.
Specifications
| Brand | Castrol |
|---|---|
| Product | Castrol GTX Diesel |
| Product Type | Engine Oil |
| Capacity | 5 L |
| SAE Viscosity Grade | 15W-40 |
| API Specification | CF-4, SL |
| SKU | 3359202 |
Features
- 15W-40 multi-grade engine oil for engines specifying this viscosity
- Meets API CF-4 for compatible diesel engine requirements
- Meets API SL for compatible petrol engine requirements
- 5L service-size bottle for routine maintenance (confirm your engine oil capacity)
Why Buy From Us
- Local South African stock
- 12-month warranty (manufacturing defects)
- Spec-check support available if you share your vehicle make, model, year, and engine
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Confirm the correct viscosity and API spec in your owner’s manual before use
- Replace the oil filter at every service where applicable
- Fill to the correct level and re-check after running the engine briefly
- Avoid mixing oil grades/specs unless the manufacturer allows it
- 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).

