what major city are youy close to. I just went to Austin like 5 weeks ago and I went to lubbock, tx 1 week ago. That is about the same prices they had in those two citys.
Last fill up was around 1.61 for 90 Octane Gas. That's one of the main reasons I don't wanna come back to the states. The gas price is crazy nowadays. I still can pay around 25 dollars and get a full tank of gas over here.
I just use the chevron 87 and I have my timing at 8 degrees. I don't know what else it would hurt. Plus I had stalling problems and ford told me to run 87.
Gas has gone way down here (Arkansas) in the last few days. It is anywhere from $1.74-$1.82 for 87. I have always run 93 octane for some reason, even when the GT was stock so I am used to paying more anyway. The gas prices really don't bother me though. Don't get me wrong, I wish it was cheaper but think of how much money you waste in a week anyway. I find that if I cut out a few stops at Arby's or Taco Bell a week, it more than makes up for it.
If you dont have Boost and your timing is stock or lower then running 87 won't hurt at all. I have my timing set high and can't find my timing light so i am stuck at 13 or 14* i want to go down a bit.