So a few weeks ago i stop at the gas station. the one i always go to and always get ninety ****ing three. My tank was empty, i ask him kindly to fill it with 93. He starts the pump, I'm going through my center console waiting for it to fill up. I look over to see how much its going to cost, when i see its cheaper than usual and my tank is just about full, well i look down and see that the "87" button was lit up, i screamed "HOLY ****ING ****!", i then jumped out of the car, yanked the pump out and through it down. When the guy came back over, i told him he was a ****ing idiot and i left. I added octane booster thinking it might help some, well it didn't. I ran down the tank 2wice now, the first time adding 14.9 gallons of 93 and the second time with 16 gallons of 93 and I'm still getting a good amount of 2nd gear knock. I'm out of ideas and don't know what to do
