when i was living in fla i had my car tuned by madz28 for 93 gas. since i have now moved to fargo, there highest rating gas is 91.
how bad is it to run the car like this? and is it giving me bad gas mileage? like 14-17 mpg is where im at.
i plan on doing some dynotuning in the next few months and will have it changed, but for now this is what i have to work with!

thanks in advance, brian

 

Is that Fargo Ga?! As long as your cars not pinging I dont think its hurting but if it was me I would buy octane booster and fill up on 93 whenever I could.

 

my bad, didnt know there was another fargo. fargo north dakota is where i am at now. i dont hear anything unusual though. just my gas mileage is terrible, 170-190 a tank