Based on your request for prices on 5W-40 fully synthetic motor oil, here are a few great options from the PriceCheck search results: The Helix HX8 5W-40 Fully Synthetic Motor Engine Oil 5 Litre is available from R459 from several retailers. As a fully synthetic oil, it provides excellent protection for your engine against wear and provides good performance. Another good option is the Rimula R4X 15W40 oil, available for R494. This is a multi-grade semi-synthetic oil that is suitable for a wide range of driving conditions and temperatures in South Africa. Both oils seem fairly priced compared to other brands and would be good choices to keep your engine running smoothly. Let me know if you need any other details on these products.
Based on the search results, the Helix HX8 5W-40 fully synthetic motor oil 5 litre for R459 is an excellent choice that meets your requirements. As a fully synthetic oil, it will provide superior engine protection and performance compared to semi-synthetic oils. The Helix brand is widely trusted in South Africa. For a top quality fully synthetic oil at a competitive price, I'm sure you will love the Helix HX8 5W-40. Let me know if you need any other details!