There has been the steady 'movement' from <span style="font-weight: bold">5W40</span> to 0W40 to 5W30 to 0W30 and even to 0W20 (eg for the 2019 VW GTI).
BUT as of today, if you if you <span style="font-style: italic">still</span> had to use a 5W40 oil which one would it be? (Which has the most...