Do you think the last gen Silverado SS was the same? A buddy of mine had one, he was well aware that he had to run premium, but it would run like a bag of poo if he had midgrade in it.

 

All I know is it states Premium fuel on the window sticker.

They called me, again, wanting me to early-out on the lease. Didn't have the time or the energy to jack with them while I was going thru all of that funeral business.

 

This thread just reminded me I should go and remove the battery from my garden tractor so it doesn't freeze over the winter.