SD Rebel
Spends too much time on here
I used to use Costco gas, but I ran into a huge problem with inconsistent quality on previous STi, it was tuned to run on 91, on every other gas station it was fine but it would knock really really bad on Costco 91, at the end I just didn't find it worth it to drive my way out and wait in line to fill up, doesn't help the one near me closes at 9pm.
Wow, sorry to hear that. That's the first I've heard of anything negative about Costco gas, at least I haven't heard of any issues in my area or the circles I run in.