From: stephen@sprunk.org   
      
   On 02-Sep-15 18:41, John Levine wrote:   
   >   
   >> Fuel economy tips, e.g. from the Car Talk guys, always say to   
   >> avoid jackrabbit starts   
   >   
   > I think that's about the way gasoline engines work.  When you   
   > accelerate hard there's likely to be unburned fuel in the exhaust.   
   > Also, unless you have a hybrid there's no regnerative braking so   
   > when you slow down all the energy is wasted as heat.   
      
   I'm not sure about unburned fuel, but an ICE has uneven power output;   
   higher RPMs mean lower fuel economy.  That doesn't apply to electric   
   traction, however; output is the same regardless of motor speed.   
      
   S   
      
   --   
   Stephen Sprunk         "God does not play dice."  --Albert Einstein   
   CCIE #3723         "God is an inveterate gambler, and He throws the   
   K5SSS        dice at every possible opportunity." --Stephen Hawking   
      
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