I don't pay a whole lot of attention to diesel generally, but I'm always looking for something to read while filling up to distract me myself from the depressing way the dollars roll upward during fillup...& in that reading, there seems to be some new higher quality standards for diesel (emission standards) that weren't in play a year or two ago...that would tend to drive the cost up a bit. The "creeping up" you noticed back when everybody went diesel would have been explained by ole reliable "supply & demand", which quickly began to look like "bait & switch"...

Saw a Benz in the bank drive-thru the other day with a bumper sticker, "BioDiesel: No War Required."

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