AND, I have heard [but cannot confirm] that the Chevy Volt REQIURES premium gas ...
Our Harleys get premium.
The truck and car take whatever they can get....LOL
Most new cars “need” premium, so I’ve been told.
They were built to run on it and something dreadful happens if they’re deprived.
I dunno because ours are old...;D
Recommends, but not requires. The engine computer will retard mentally challenge the timing for lower octane, which will reduce overall economy.
This article dances around the subject, but never actually mentions using regular gas: GM Says Chevy Volt Will Require Premium Gas; Fuel Costs 10% More Than Regular
This article does mention both can be used, but that regular will degrade mileage, and may cause more engine noise: Does the Chevy Volt Require Premium Fuel? Yes and No