For prospective car buyers, comparing gasoline versus diesel options often requires a comparison of diesel fuel vs PREMIUM gasoline, and in 2014, in 4 out of the 12 months, diesel was actually cheaper than premium unleaded. And diesel car buyers are looking at the big picture beyond today's price at the pump comparison.
Global warming, clean air and energy security are all in the news and it seems like these goals are all mutually exclusive. America's new found energy reserves might help support energy security but may come at the expense of clean air and mitigating climate change. Well....not really if you consider clean diesel.
Are low diesel fuel prices a good thing? Well.... it depends on who you are asking.