I tend to go to the lowest priced stations that accept credit cards. (In the DC area, some stations only accept cash, and they have the cheapest gas.) This tends to be Sunoco right now. In the past I would got to LukOil, Amoco, BP, Citgo or Shell. Never seen a difference in the last few decades.

On Feb 5, 2012, at 11:16 AM, Loren Busch wrote:

> I see, in several responses to my posting about Arco's 35 cent surcharge on
> gas purchases, that virtually everyone expresses a preference for Chevron
> gasoline.  That includes me.  But is there any objective data to support a
> superiority of Chevron gas?  Curious minds wonder.