Gas prices are up across the country compared to the week before. The national gasoline average is 17 cents above the price this time last year. Diesel fuel is about 26 cents above this time last year.

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.

National regular gasoline prices Price Change from last week Regular gasoline/gallon $3.84 ↑ .07 Diesel fuel/gallon $4.13 ↑ .04 Regional regular gasoline prices East Coast $3.81 ↑ .06 --New England $3.86 ↑ .04 --Central Atlantic $3.82 ↑ .04 --Lower Atlantic $3.79 ↑ .08 Midwest $3.88 ↓ .10 Gulf Coast $3.65 ↑ .06 Rocky Mountain $3.64 ↑ .07 West Coast $4.07 ↑ .03 --California $4.18 ↑ .02

Source: Energy Information Administration, 9/3/12. Figures rounded to the nearest cent.