Heard At The Show: Snippets from SAE 2009 World Congress
Green Car Congress
APRIL 30, 2009
For every kJ of chemical energy in the fuel for a spark ignition internal combustion engine, 73 % is sacrificed to chemical and thermal losses. Breaking out the 22%, aerodynamic losses account for 39%, tire resistance is 25%, transmission and drivetrain 20%, accessories 12% and bearings 3%. How did the high fuel prices impact customer behavior in 2008? A $1 change in gas prices can lead to a 4-6% shift in take rates (i.e. Cash for Clunkers.