Engine Block Heaters might be a big step. Check the tire pressure, many folks on here run 42/40, I noticed a big change when I bumped up to 40/38. If you want to see big numbers, EBH and a bevy of techniques and you can do the I beat the EPA thing. I think there is a break in period for both the driver and the car. I noticed a lot of used Prius with 10k to 15k miles, which is when most owners say they start getting better mileage. Instead of I'm thinking you are not getting 51 or 60 mpg, think, what other car this size can get me 47?
