In article ,
James Robinson wrote:

I have seen people quote average mileage numbers as low as 25 mpg in very
cold or hot climates, to over 55 mpg under ideal conditions. Some quote
consistent numbers of 35 mpg. So it seems that people can experience a
great spread of fuel economy with the car.

Some things that adversely impact the per mile fuel economy of my hybrid:

1) ethanol in the fuel
2) New England winters (the engine runs much more often to stay warm)
3) short trips

--
Bob Noel
(goodness, please trim replies!!!)