U.S. gasoline prices might be 8 cents higher than a week ago and higher than they were all last year, but that doesn’t mean they won’t go up from here. Gasoline is usually at its lowest prices in January, and I haven’t seen anything to indicate that its seasonal tendencies have changed much. Prices usually go up from January to June, and that is likely to happen again this year. Gasoline prices may not shoot up, but they could creep up 10 to 20 percent over the next five months. I expect summer gasoline prices to remain over $3 a gallon everywhere in the United States.