So during the snow "blizzard" storm in San Antonio this week, you north guys can laugh but it was very bad for us, regular gas was out at the pump. So I had to use premium 93 gas in the Colorado. And there was a huge difference in performance. I could feel the truck running and performing better. Just that little change made a noticable difference. I probably wont be using premium every time, maybe once in a while. Felt like a new truck actually. My foot just kept getting heavier it felt so good! Lol.