Cold temperatures and winter weather significantly affect your vehicle's fuel economy, but there are some things you can do to improve gas mileage that will save you some money. With gas prices nearly $1 higher than they were this time last year — every little bit helps. Swipe for some fuel saving tips from the U.S. Department of Energy and read more on FOXWeather.com. #gasprices #gas #cartips #winter #winterdriving #highprices