RV Fuel Issues & Prices - Post 'Em Here!

I know there were some significant advances in cat cracking and reforming at that time that greatly increased the the percentage of gasoline made per barrel of crude oil. For years diesel being the smaller market was over supplied in order to produce sufficient gasoline. I think this is the cause. I'll virtually bet on it.

Refining is a very delicate balancing act and increased environmental regulations especially by region add another few variables in the mix.