Some fuels contain less energy than others. Using oxygenated fuels or reformulated gasoline (RFG), for example, can cause a small decrease (1-3%) in fuel economy.
The energy content of gasoline varies seasonally. Typical summer conventional gasoline contains about 1.7% more energy than typical winter conventional gasoline.
Auto Spectator hosted by:
Information relating to the 2009 Chicago Auto Show on February 13 - 22.
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Playtime is over. ‘Coke Zero’ brings you Wayne Rooney’s Street Striker 09.
24 players. 6 challenges. 3 shows. The ultimate goal to crown the new, undisputed ‘Coke Zero’ Street Striker 09.
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Everything you need to know about Cockfights on tour...
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Meet your ancestors on DVD and Blu-ray from 2nd November
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