uc_on_factors_loaded("Fuel_Efficiency-Mass", ["joule/kilogram",4186.8,"kilojoule/kilogram",4.1868,"calorie (IT)/gram",1,"calorie (th)/gram",1.00066921606,"Btu (IT)/pound",1.8,"Btu (th)/pound",1.80120458891,"kilogram/joule:2",1,0.000238845896627496,"kilogram/kilojoule:2",1,0.238845896627496,"gram/calorie (IT):2",1,1,"gram/calorie (th):2",1,0.999331231490627,"pound/Btu (IT):2",1,0.555555555555556,"pound/Btu (th):2",1,0.555184017494176,"pound/horsepower/hour:2",1,1413.57420980223,"gram/horsepower (metric)/hour:2",1,6.32415090283749E+5,"gram/kilowatt/hour:2",1,8.59845227858985E+5])