While U.S. gasoline prices remain relatively low, the recent trend in increases is the longest in more than two years, motor club AAA reports. The national average retail price for a gallon of regular unleaded for Tuesday is $2.44, up two cents from the previous day. Prices have increased for 36 straight days, the longest streak since February 2013. AAA spokesman Avery Ash said gasoline prices are still historically low , but the price trend is a growing source of frustration for motorists. Prices are up because of refinery issues and AAA expects increases to continue. “Gas prices likely will rise higher in March as refineries conduct seasonal maintenance,” he said in a Monday briefing. “The good news […]