I’ll give you that - but I’ve seen Subarus struggle to kick over on 0W-20 in Tahoe - these are new Outbacks and Foresters, not some beat on WRX or dirtbag Legacy wagon in the Heavenly parking lot.

Toyota backspeced to 0W-20 for the US/Canadian market because CAFE and there is a statement in the owner’s manual that “thicker oils provide better protection for high-speed driving or severe use.” It’s worded to avoid a brush with the EPA/CAFE - Toyota says indirectly thicker oil is OK. Severe use to me is towing, extended freeway runs(like a roadtrip” or gig work like Uber or Amazon/Doordash. The same engines in Southeast Asia, Australia/New Zealand and Middle Eastern/African nations allow for thicker oil.

The only cars I’ll feel comfortable running 0W-20 or even 0W-16 full time is a Honda and the new Toyota Dynamic Force engines that were designed to accommodate thinner oils. Honda was the first to introduce 0W-20 and they have a dire warning not to use anything except that.

For the US the recommend 0W-20. In Japan, they allow up to a 10W-30, for Southeast Asia and Australia/Middle East, up to a 20W-50.

0W-20 is a fuel economy grade. It works fine for Honda - they invented it and engineered for it. Right now, Mopar and GM are having lifter issues on V8s with DoD and 0W-20.