Here in SE Michigan gas has been in the low $2 range for a few weeks. We have "winter blend" and "summer blend" here and that was always used as a reason (or excuse) to raise prices. Has anyone else noticed that they don't give any kind of reason any more when gas prices go up. I think they figure people are just acclimated to that now.
Diesel always used to be cheaper than gas. Then in late 1993 when they passed a law about diesel emissions the refiners had to supply only low sulfur content fuel. That was the major cause of the increase of diesel fuel.