I see plenty of new Corvette C7 at the track running 0w40 or 5w40 without any issues. If you have no mods and need to keep the car under warranty then 15w50 would be the clear choice.
The new Corvettes we see at my speed shops are getting modded and the warranty is out the door as well and we use Royal Purple 5w40 over 0w40 because 5w40 contains synerlec.
The new Corvettes we see at my speed shops are getting modded and the warranty is out the door as well and we use Royal Purple 5w40 over 0w40 because 5w40 contains synerlec.