Well then, I'm ahead of the curve 
Diesel Market to Double or Triple by 2020 » AutoGuide.com NewsThe price of diesel fuel often rises or falls for reasons unrelated to the price of standard gasoline, such as last winter when diesel cost nearly $1 more than gasoline in some areas of the U.S. As demand for diesel rises around the world, U.S. oil refineries are investing aggressively to produce more diesel, especially since the fuel recently surpassed gasoline as the most common oil-based fuel.