Thanks man and yeah, Sunoco is not on that list. I know my 93 going wot throttle boosted showed some knocks according from Lund rep while data logging. I’ll try those other stations close to my area. I just don’t like the idea going octane boostane all the time, but I also know they’re good insurance.All of your top tier gas comes from the same places. The only difference is additives. Here's a list. https://www.toptiergas.com/licensed-brands/
You shouldn't be getting knock if you're using what your car is meant to run.
I don’t think I’ll ever use H-E-B gas. I just don’t know how they’re better than Sunoco. I could be wrong of course and I don’t think I’ll take that gas. It’s going to be expensive blowing my engineI use HEB most of the time and haven’t had any issues. I also agree with Bucee’s.