I remember when I bought my '05 ZX3 (automatic) the sticker said 26mpg city and 34mpg hwy, I was only getting at best 27mpg (30% city) took it in to be checked under warranty. The dealer said they were getting 30mpg on the dyno and in perfect conditions (no wind), I was still unhappy then and have been checking it regularly. I get between 22mpg and 26mpg in the winter and now get 29.6mpg (50% city) but have never seen more than 32mpg on a hwy trip. I still think the ratings are not actual for my vehicle but I do have an automatic and I watch my driving habits to (more coasting and less stopping/starting). On average I usually see 27-28mpg all day long with my daily drive and I was hoping for 30mpg plus
