On Tue, 03 Jan 2006 15:35:45 +0000, Steve Firth wrote:

Conor wrote:
In article , Steve Firth says...

75% of energy stored in your tank is wasted,
Incorrect.

I think he's going along the lines that the average petrol engine is
only 25% efficient.

Which would be fine if it were true.

Overall its not far off for the average of most (petrol) cars.