Gas prices are up again around the country in all areas compared to the week before. The national gasoline average is $.31 above the price this time last year. Diesel fuel is about $.24 above this time last year. Premium fuel is $4.12, up about four cents from last week.

[Click here for the latest average gas prices on Consumer Reports Online.]

Source: Energy Information Administration, 3/19/12. Figures rounded to the nearest cent.

See our guide to fuel economy for advice on saving gasoline, including reports on how to get the best gas mileage and where to find the cheapest gas. Learn about future technologies in our in our guide to alternative fuels.