Let's try and get back OT. One of the things that is interesting in S.Calif is the discrepancy between the various gas prices...or lack thereof. One stand out...which I am not really sure as to why...is Costco. Their prices are typically lower than the usual suspects, and in some instances considerably lower.
Several years ago, a friend of mine, who was in the gas station business, told me something very interesting. At the time, the price of diesel was much lower than regular gas. This had been the situation for decades and with everyone expecting it to continue. ( after all the refining process and therefore cost to produce for diesel is much less than gas). Apparently, the oil companies had just completed a study on the usage of diesel and the comparative history of diesel consumption in the US. They found to their surprise that the usage numbers were appx. the same over the several years that the study was conducted. This lead to a decision to greatly increase the price of diesel to a higher point that gas. The rationale being that the usage was not going to drop-off or increase at all and therefore why not maximize profits to the industry. Today, i think we can still see that the rationale still exists!