Tuesday, March 29, 2011

No more cheap diesel

Since the efficiency of diesel engines are better than gasoline powered engines, market share of light-duty diesel engines are increasing. However increasing diesel consumption causes diesel prices increase more than gasoline prices. A question in my mind does using diesel powered light-duty engine will be no more cheap at future? Here are some figures historical diesel and gasoline and diesel prices. The time base is 1979 and 2011. The real price for gasoline was 2.62$ at 1979, now(2011 Jan) it is 3.56 $ which gives us a %35 increase at gasoline retail prices. On the other hand, The real price for diesel was 2.39$ at 1979, now(2011 Jan) it is 3.81 $ which gives us a %59 increase at gasoline retail prices. Gasoline retail prices are 23cent higher at 1979, but now it is 25 cent cheaper.

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