Engine Brand name gas vs cheap gas

I always buy 91-93 octane only at Shell,Chevron,76,Texaco and Mobil,
also I discovered that Ethanol gives your car fewer mpg and I went to a Texaco with 10% ethanol and techron it eats gas but gives me an advantage on the steep hills I can go faster than 90mph when I used it.

Are you turboed? If not, why you running premium?


1.engine doesn't sound bad when strained
2. fuel economy appears to have gone up
3. I can find it cheaper than generic regular

way it was 73
cheapest REGULAR in the city was 78 that week
regular was 72 (in that particular texaco)

so w.e. ... 1 cent