A report published by the United States Energy Department says gasoline will continue to be the fuel of choice by 2040.

A report published by the United States Energy Department says gasoline will continue to be the fuel of choice by 2040.

According to Energy Information Agency's report, the fuel efficiency of U.S. made cars will increase from 2012's 21.5 mpg to 37.2 mpg by the year 2040. The analysis indicates 78 percent of cars in America will run on gasoline in 2040, representing a 4 percent decrease compared to 2012. According to the estimations, 42 percent of all cars will feature micro-hybrid or similar technologies by 2040.

EIA says 5 percent of all 2040 cars will be full hybrids, while diesel popularity will double to four percent. Plug-in hybrids will represent only 1 percent of the market, with another 1 percent going to full electric cars. The same report mentions the price of gasoline will increase to 3.90 USD (adjusted for inflation) while diesel will cost 4.73 USD.

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U.S. Department of Energy predicts gasoline will still dominate by 2040