Vehicle Compatibility
This is an engine oil selected by specification. Use only where the manufacturer specifies SAE 20W-50 viscosity and API SL (petrol) and/or API CF (diesel). Confirm the required viscosity and API category in your owner's manual before servicing or topping up.
- For petrol engines requiring API SL
- For diesel engines requiring API CF
- Use where SAE 20W-50 engine oil is specified
Do not substitute if your vehicle requires a different viscosity grade, ACEA category, or OEM approval not listed here.
Specifications
| Brand | Castrol |
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| Product | Castrol GTX |
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| Product Type | Engine Oil |
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| Capacity | 5 L |
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| SAE Viscosity Grade | 20W-50 |
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| API Specification | SL, CF |
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| SKU | 3359766 |
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Features
- 20W-50 multi-grade engine oil for engines specifying this viscosity
- Meets API SL for compatible petrol engine requirements
- Meets API CF for compatible diesel 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
