Internal Combustion Rapidshare What Is The Efficiency Of A Modern Internal Combustion Engine?

What is the efficiency of a modern internal combustion engine? - internal combustion rapidshare

Expressed as a percentage, say the efficiency of modern internal combustion gasoline engines for cars - a Honda or Toyota engine? Anyone have any ideas? Efficiency I speak in terms of how much energy is used to produce energy, and what is so lost in the heat or friction
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