Michigan's average gas price is up four-cents this week to three-dollars a gallon.

Triple-A Michigan says the price is up 15-cents in the past month but 40-cents less than what was paid last year. A 15-gallon fill up costs 45-dollars on average in the state. Michigan's most expensive gas is in Ann Arbor, Lansing, and Saginaw at three-dollars-three cents, while the most affordable fuel is in Marquette at two-88.