This is not a thread about the best oil, I have no interest in opening that can of worms. I noticed that Tesco has 2l bottles of Castrol Magnatec 5w30 Start Stop on offer at £9 a pop, I am about to do an oil change so am picking some up some today. Ironically you can buy a 4l bottle for £28 or two 2l for £18 yet I still saw someone the other day buying a 4l bottle and they are side by side on the shelf.