RIVERSIDE, Calif. -

The average price of a gallon of self-serve regular gasoline in the Inland Empire fell Tuesday for the 20th consecutive day, dropping  four-tenths of a cent to $3.832.

   The average price in Riverside and San Bernardino counties is 7.3 cents less than one week ago, 2.3 cents lower than one month ago and 85.6 cents below the record $4.688 reached one year ago today in response to concerns about  supplies, according to figures from the AAA and Oil Price Information Service.

   The average price has dropped 18.1 cents over the past 20 days,including eight-tenths of a cent on Monday. The dropping prices were  immediately preceded by a 10-day streak of rising prices totaling 15.8 cents.

   The falling pump prices are the result of a sharp drop in the price of wholesale gasoline, lower crude oil prices and adequate inventory, according to Jeffrey Spring of the Automobile Club of Southern California.