AAA Michigan says gas prices rose 3 cents during the past week, putting the statewide average at $4.09 a gallon.
AAA Michigan says Monday that of the cities it surveys the cheapest price for self-serve regular fuel is in the Benton Harbor and Lansing/East Lansing areas, where a gallon costs $4.07. The highest average can be found in the Marquette and Traverse City areas at $4.15 per gallon.
Detroit-area drivers are paying $4.08.
The statewide average for biodiesel is $4.77 and $3.54 for ethanol.
AAA Michigan surveys 2,800 Michigan gas stations daily.
The average price for gasoline now tops $4 nationwide, but prices in Ohio are hanging on just below that threshold.
A gallon of regular gas is averaging $3.97 in the state, just a penny more than last week according to AAA and the Oil Price Information Service.
Prices at the pump are expected to keep climbing, especially after last week's furious surge in oil prices. Crude came very close to $140 a barrel in a record-shattering rally on Friday.
Across Ohio, commuters, businesses and government agencies are making adjustments to try to hold down their fuel costs. The Toledo area's transit agency is eliminating bus routes, cutting back weekend hours and adding new express bus service.
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