Good morning Dear community, Once again there is a theme about motor oil, of course, such topics are already too high, but I have not yet been answered a question (or I really haven’t found it) . Since I want to make an oil change in predictable time and I now tend towards mobile: Is the 0W30 really worth it or is the 0W40 already more than enough? What are the most striking differences of these two synt. oils? Move my audio currently with 5w40 GoldSynt of Gamaparts –> AMAG oil (Audi, VW and Co. representation in Switzerland) thank / gruss