Average gas prices have fallen by nearly eight cents in a week in the South Sound.
A gallon of unleaded regular now costs $3.73 in the Tacoma area on average. That’s down from $3.799 a week ago and some 13 cents off the 2013 high of $3.86 set more than two weeks ago according to The News Tribune’s Gas Deal Finder.
At least five stations in Pierce County are now selling unleaded regular for less than $3.50 a gallon. Price leaders are an Arco station at South 56th and Orchard streets and Costcos near the Tacoma Mall and in Gig …