One last comment...Wow i did not expect that! Thanks a lot for the explanation. I guess what's appealing about a good 15w40 is low Noack as well as as high-ish HTHS and of course lower price as i don't really like waste of any kind. Usually i still buy a high end synthetic to have something with a low Noack as i believe this is important to the health of the engine but it sounds like there are other options. This oil seems more up to date compared to many others on the shelves that are only SL rated.
SN 15W40 oils like this are almost certainly Group II/III oils.
SL 15W40 oils are more likely to be original Group I oils. There's nothing wrong with these. I did 15W40 Quartz for Total back in the day & it sold consistently for years & years (but has probably been superseded now). Be selective in the EU if only because American Group II base oil imports are restricted to protect what's left of the European Group I refining industry (I think both Total & CEPSA are still in the game but a lot has closed down).