Topping up my engine oil as it was a little low after a service. Are these two interchangeable? I use 5w-30 but a little lost on the 'LL' or 'c4' bit :
159BAB CASTROL Magnatec, Stop-Start C2 Engine Oil 5W-30, Capacity: 4l PSA B71 2290, ACEA C2 ❱❱❱ price and experience