While the Viper and Corvette are factory fill with synthetic, the engines are broken in at the engine plant. They don't say how they break the engine in or what oil they use to do so. As an engine isn't typically abused abused during break-in, dino oil should work fine and help the rings seat that much sooner.

But, I'm still a big believer in Mobil 1. When the new engine is ready to be run, the first oil will be dino, then Mobil 1 from 2500 miles on.