I run 93 and once in awhile throw in a can of sea foam.

 

I'm hoping 93 Octane drops soon cause I'm dying to try out my "Race Tune" in the Mustang.

 

I run regular 87...when I had my tune done, I had it tuned for 87 octane. Will at Overkill said that tuning for 91 octane would only net about 2 whp, which in my opinion was not worth the added expense for 91 octane...especially when I'm over here throwing on 36K a year.

As for the station, I go pretty much anywhere...sometimes its Chevron, Shell, or 76...other times its Safeway or Costco. I can never tell the difference between one or the other.

 

I use 93 octane, required on all the boosted montes. I try to stick with the same gas stations, I was using mobil for a while but ever since the move back to moms I've been going to the Valero down the road. And also, I never go to full service, No one touches my tank, i pump my own gas! (and thats why I'll never live in NJ!)

 

I run 90 from Cenex. For a while I was running just the ethanol free 87 from Cenex because I figured it was better for the car but that was always 10cents higher than the 90 so I just started running the 90 and have no problems with it.

 

I use Kroger gas and from what i have heard they get their gas from Shell. Has anyone else heard this. I also go to speedway and sometimes a marathon by work