
Fuel question for K5 GT owners
So with the current prices of gas being high, I've been contemplating running a lower grade of fuel instead of the usual 93 octane. Those of you who also own the 25 GT, have you experimented with lower octane fuels? If so, what grade did you run, and how did the car behave while doing so? I already know that with turbocharged vehicles you want to run the highest grade possible for optimal performance, but being that the car is just a daily cruiser I am wondering how it will act on something like 87 octane once the ECU senses it and stabilizes. I'm expecting performance to likely be somewhat sluggish, but not to the point where the car can't get out of its own way.