Based on your search for a 15W40 oil in 5 litres, I would recommend either the Castrol GTX Diesel Engine Oil 15W-40 5L for R399.99 or the Totai Total - MC3 Quartz Ineo - 5 Litre for R627. Both of these options are full synthetic 15W40 oils suitable for diesel engines, with the Castrol being more affordable. The Castrol is a trusted brand known for protecting engines under all driving conditions. I hope one of these recommendations works well for you! Let me know if you need any other details.
