Consumption in 2007 was about 142 billion gallons, an average about 390 million gallons per day and the equivalent of about 61% of all the energy used for transportation, 44% of all petroleum consumption, and 17% of total U.S. energy consumption.
About 47 barrels of gasoline are produced in U.S. refineries from every 100 barrels of oil refined to make numerous petroleum products. Most gasoline is used in cars and light trucks. It also fuels boats, recreational vehicles, and farm, construction, and landscaping equipment.
While gasoline is produced year-round, extra volumes are made and imported to meet higher demand in the summer. Gasoline is delivered from oil refineries mainly through pipelines to an extensive distribution chain serving about 167,500 retail gasoline stations in the United States.
There are three main grades of gasoline that are based on octane levels: regular, mid-grade, and premium. Premium grade is the most expensive; the price difference between grades is generally constant at about ten cents per gallon.
www.eia.doe.gov
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