Hello; my question is simple. What is the best gas for performance/best milage available here in the southeast NC? Not so much octane rating but the overall best there is. I goggled the question, and to my surprise
(not really, damned oil companies), I was not able to secure any answers.

Thanks so much for any data.

RES

 

I use 93 octane form Shell in my Durango. I use Turbo Blue 110 (?) octane in my Demon. Not sure why I use Shell over Sunoco as they are both next to each other, but I refuse to use BP or bargain gas,
FF