Fuel energy in	=	cooling water losses	+	engine energy output	+	exhaust losses
100%	=	36%	+	26%	+	38%
Engine energy output	=	energy used in acceleration	+	rolling friction	+	energy for accessories
26%	=	3%	+	6%	+	3%
	+	coasting and idling losses	+	air resistance	+	power transmission losses
	+	4%	+	7%	+	3%