As of Wednesday, the price of regular unleaded gasoline averaged $3.04 across Iowa, according to AAA. Prices rose 7 cents from last week’s price and are down 67 cents from a year ago. The national average on Wednesday was $3.21, down 1 cent from last week’s price. Retail diesel prices in Iowa held steady this week with a statewide average of $3.34. One year ago, diesel prices averaged $4.32 in Iowa. The current Iowa diesel price is 25 cents lower than the national average of $3.59. Tips for saving energy on the road or at home are available at energy.gov and fueleconomy.gov.