fuel economy on the optra 5?

i just bougt a 2004 optra 5 LS , its automatic. i just figured out my gas mileage and i am getting 25.5 mpg, ok its cold here ( -25) all week but my 99 cavalier was getting 33 mpg in this weather. i thought for sure this car could do better than this... let me know what you guys are getting please. ..thanks.....

Optra is the fuel efficient car, its market reviews, user reviews, buyer comments all says it is fuel efficient car....For more today i just found one optra blog visit at http://chevy-optra.blogspot.com