AAA Michigan says gasoline prices are down 2.1 cents per gallon over the past week to a statewide average of $2.68.
The auto club said Tuesday the statewide average is 7.8 cents per gallon less than last year at this time.
Of the cities it surveys, AAA Michigan says the cheapest price for self-serve regular fuel is in the Lansing/E. Lansing area, where it's $2.63 a gallon. The highest average can be found in the Marquette area at $2.82.
Dearborn-based AAA Michigan surveys 2,800 Michigan gas stations daily.