I own a 2022 Corvette, and before that, a 2015 with a dry sump engine. The 2015 came with a 5w-30 recommendation, which GM later changed to 0w-40. After the warranty period on the 2022, I think I will run 5w-30. The car is out of service all winter, so sub freezing operation never occurs. And the car is almost always under 3000 rpm.
And I am suspicious and resentful of the Dexos licensing requirement. I actually prefer Pennzoil Ultra Platinum. Shell lubrication experts are just as good as the folks at ExxonMobil. How could an oil good for a supercharged Hellcat be unsatisfactory for a direct injected, naturally aspirated Vette?
Tying a warranty to the use of products that GM collects licensing fees probably violates Moss-Magnuson.