For the fifth week in a row, the national average retail price of a gallon of diesel fell this week.
The price declined 3.4 cents to $2.946 in the latest week and has dropped 18.1 cents over the past four weeks.
For the third week in a row, the national average retail price of a gallon of diesel declined this week.
The price plunged 7.3 cents to $3.021 in the latest week, the biggest drop in 17 months.
The price fell 3.3 cents to $3.094 in the latest week, the biggest drop in 16 weeks.
Increasing for the 11th week in the past 12 weeks, the national price was the highest since Oct. 27, 2008, when it was $3.288.
The national average price rose 4.4 cents to $3.122 in the latest week, the 10th increase in the past 11 weeks.
An examination of what components determine the price you pay for a gallon of diesel fuel.
Sign up to get Overdrive's daily newsletter.