Yes of course. But we can’t have an infinite number of grades, so each grade has a range. So again if 20 grade is specified, use with confidence.So, what would you say to a 20 weight that had an HTHS of a 30 weight? I know of a couple of such oils. What about a thick 20 weight compared to a thin 30 weight? You do recognize that any grade is a range, and the actual "thickness" of the oil could vary quite a bit.
You don’t get one with the car?I noticed the new 2023 Prius recommends 0w-16. Personally, I like to go buy the owners manual.
You should.
5W-30 across the board and don't look back.
Your engine will love you for it, especially when it gets a little longer in the tooth and the tolerances widen.
20 weight is pee-water...
I mean, I already got dragged as being wholly unqualified to comment on the subject of bearings in this thread by somebody who didn't know the difference either, lol.Really? Tolerances widen?
Plus there are PDF’s for freeYou don’t get one with the car?
Only on the night shift when the inspector goes homeReally? Tolerances widen?
Alcohol is a great tool for expanding tolerancesOnly on the night shift when the inspector goes home
Good point - the Toyota 1.8L (non turbo) is an old school PFI system , so less fuel dilution except for short tripping) but still far less than a GDI engine .You are leaning pretty hard on the use of the word shear in your posts. In many instances the biggest source of viscosity loss is fuel dilution. Since basically every UOA we see posted here doesn't include HTHS, we really don't know how much it gets impacted on average.
Or when the boss says ship that red tagged lot on the MRB shelf.Only on the night shift when the inspector goes home