Gas prices and quality differ from city to city and state to state. Here's everything you need to know about how gasoline in the U.S. works. RELATED: [ Ссылка ]
Gas prices have continued to increase around the nation as a lot of Americans head out for summer road trips.
The national average price for a gallon of regular gasoline was $3.16, up two cents from last week. Drivers were paying an average of $2.20 a gallon a year ago at this time.
Analysts say high crude oil prices will likely keep prices at the pump above $3 per gallon through the rest of the summer driving season.
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