Michigan's average gas price is down 10.9 cents this week, the first week of autumn, according to AAA Michigan. Michigan's current statewide average is slightly over $3.90 per gallon. The statewide average is 35.4 cents more than last year.

Gas prices in and around Flint are some of the lowest in the state at just under $3.81 a gallon. That's down from last week's average of $3.93 per gallon. While prices in Flint last week were second lowest in the state, this week Flint prices are right in the middle of the pack.

AAA surveys 2,800 Michigan gas stations daily. For more information, visit www.fuelgaugereport.com. To find the cheapest gas nationwide, go to AAA.com and look for AAA Fuel Price Finder.