Gasoline prices are pressing down on the accelerator.
Industry analyst Trilby Lundberg says the price of gas surged an average of eight cents a gallon during the two-week period ending Friday.
With the summer driving season under way, the average retail price for all three grades of gas hit $2.24 a gallon. Self-serve regular averaged $2.21 a gallon.
Last week, crude oil futures settled at a record of just below $60 a barrel, after prices jumped on speculative buying and fears of supply disruptions. Lundberg says pump prices are being supported by demand, which continues to grow.
Among the stations included in the survey, the highest price for unleaded regular was in Honolulu at $2.46 a gallon.
The lowest was in Charleston, South Carolina, at $2.04 a gallon.