Energy content of liquid fuels
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                                          Energy Content
                                          ______________________________
                                          By volume  Specific  By weight
                                                      volume
                                          ______________________________
                                          
                                          MJ/L       L/t       GJ/t
                                          
LPG
- propane                                 25.4      1960      49.6
- butane                                  28.0      1760      49.1
- mixture                                 26.2      1890      49.4
- naturally occuring (average)            26.5      1866      49.4
Aviation gasoline                         33.1      1412      46.8
Automotive gasoline                       34.2      1360      46.4
Power kerosene                            37.5      1230      46.1
Aviation turbine fuel (jet fuel)          36.8      1261      46.4
Lighting kerosene                         36.6      1270      46.5
Heating oil                               37.3      1238      46.2
Automotive diesel fuel                    38.6      1182      45.6
Industrial diesel fuel                    39.6      1135      44.9
Fuel oil
- Low sulphur                             39.7      1110      44.1
- High sulphur                            40.8      1050      42.9
Refinery fuel (fuel oil equivalent)       40.8      1050      42.9
Naphtha                                   31.4      1534      48.1
Lubricants and greases                    38.8      1120      43.4
Bitumen                                   44.0       981      42.7
Solvents                                  34.4      1229      44.0
Waxes                                     38.8      1180      45.8
Crude oil and other refinery feedstocks  
- indigenous to Australia (average)       37.0      1250      46.3
- imports (average)                       38.7      1160      44.9
Orimulsion                                 na        na       28.0
Ethanol                                   23.4      1226      29.6
Methanol                                  15.6      1263      19.7
Tallow                                     na        na       35.0
Liqefied natural gas (NW shelf)           25.0      2174      54.5

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Sources: Australia Department of Industry, Tourism and Resources: Woodside Petroleum

From Australian Bureau of Agricultural and Resource Economics
    http://www.abareconomics.com/
    http://www.abareconomics.com/pdf/ENERGYDEFINITIONS.pdf 

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1 BTU = 1054 - 1060 Joules
1 kWh = 3600 kJ
MJ    = Mega (million) Joule
GJ    = Giga (1000 million) Joule
L     = liter
t     = ton