As of Wednesday, the price of regular unleaded gasoline averaged $3.01 across Iowa, according to AAA. Prices rose 3 cents from last week’s price and are down 28 cents from a year ago. The national average on Wednesday was $3.20, down 1 cent from last week’s price. Retail diesel prices in Iowa rose 6 cents this week with a statewide average of $3.44. One year ago, diesel prices averaged $4.23 in Iowa. The current Iowa diesel price is 17 cents lower than the national average of $3.61. Tips for saving energy on the road or at home are available at energy.gov and fueleconomy.gov