I was chatting with my auto mechanic the other day and I asked him if he thought all gas was pretty much the same these days - an idea I'd been encountering. He didn't agree at all.
Now I guess I should say that I have no connections with the petroleum industry of any kind, none in the auto industry either, or any other industry associated in any way with gasoline.
He said his truck was running sluggishly and he put in a tank of 76 high octane and could hardly believe the difference it made. Suddenly the truck ran smoothly. He said he has a lot of evidence that he and other people are getting very significantly better mileage since switching to 76. I guess that's 76 Union, unless they've changed their name.
I asked him if he had any experience with their regular gas, and he couldn't really say, it seemed.
I thought I'd throw this out there and see what other people think.
Myself, I've been using the cheapest regular I can find, usually from Costco, or a station I know where they sell pretty cheap if you give them cash. I drive less than 2000/year with my two cars, so it isn't a giant deal for me, but more mileage and smoother performance would be reason enough for me to switch to a recommended brand.