Looks like we are back in the warm weather here in Texas. For the first time since December my fuel economy has jumped back up to around 19 MPG (I prefer to drive between 80MPH-85MPH). I noticed it dropped to the low 16s, with an occasional dip into the mid-15s or jump to the mid-17s. Now I am consistently above 18 MPG and haven't changed the way I drive. I don't think we saw below 24* this past winter, and only had a few freezes total, making it interesting that the mileage could be affected so much (~15%-20%) by such mild temperature changes. I kind of feel for you guys up north, but that may be the breakfast burrito I had this morning.