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.
Many of the advanced technology clean diesel engines come with precise fuel injection systems that require a consistent fuel blend that is exceeded in some states. A nationwide B5 standard would ensure reliable engine performance and increase the distribution of this renewable fuel across the economy.
Beginning in the 1960s and 1970s, locomotives and trucks began the transition to a cleaner and more fuel efficient technology - diesel. Since then, decades of innovation in diesel technology have greatly improved fuel economy and exponentially reduced emissions to near zero levels not to mention advances in cleaner diesel fuel.