I have a question. Brought on by the thread about how much people pay for gas, I was wondering. What is the difference between stations? Is Chevron, Shell, 76, AM/PM better than Mos? I was under the impression that the independent mom and pop shops buy their gas from the leftover stock of the big guys, so whats the difference? I understand the difference between the octane levels, but does the pump station matter? Does the Technron in Chevron or the V power in shell really do anything?
I don't know the answer, but I think it makes a small difference. My moms car had a problem running on Chevron, it was jerky, so we starting filling up with Shell and it felt much smoother, and it didnt jerk around alot, or sound like it was going to die on the highway. EDIT: I just read over your post, my post doesnt help at all, sorry.
I have always had good luck with Chevron and Exxon. While I've tried Shell because of all the fuss about it, and my car didn't perform or run as well. I won't fill up at Randalls again though. A few weeks ago I did and that entire tank my car had a starting issue. Now that it's completely out, it's back to normal.
A few years ago my family was using Shell gas because it seemed to burn better. I have a huge family and there are a lot of businesses being run including heavy machinery. When tens of thousands of dollars of fuel is being purchased each month you do want the best for your dollar. My grandfather owned an equipment company and for the last 40 years and used Shell fuel pretty much continuously.
Some companies (Chevron for example) have additives in their fuel. But other than that, you'd be surprised how many companies (big names and no-name retailers) all get their fuel from the same suppliers. We have a few stations in Ontario Canada, and when the delivery comes the same truck delivers to some of the competition (different brands). So in the end, the brand MAY matter, but what really matters more is their supplier.