The price of regular unleaded gasoline fell 2 cents this week, averaging $2.95 across Iowa according to AAA. Prices  are up 4 cents from a year ago. The national average on Wednesday was $3.15, up 2 cents from last week’s price. Retail diesel prices in Iowa fell 2 cents this week with a statewide average of $3.45. One year ago, diesel prices averaged $3.78 in Iowa. The current Iowa diesel price is 22 cents lower than the national average of $3.67. Propane prices averaged $1.67 per gallon in Iowa. Home heating oil prices had a statewide average of $3.02 per gallon. Tips for saving energy on the road or at home are available at energy.gov and fueleconomy.gov.