The average price of a gallon of diesel fell below $4 a gallon for the first time since April 14, according to the Energy Information Administration. However, a sudden spike in the price of crude oil over the past few days indicates prices could rise again very quickly.
Diesel averaged $3.96 a gallon for the week of Sept. 22, a drop of six cents from the previous week. However, Monday featured the biggest one-day gain ever in the price of crude oil, which rose $16.37 to $120.92, before falling back below $107 a barrel today, AP reported.
The most expensive diesel prices continue to be in New England, where the average is $4.11. The least expensive area is the Gulf Coast, which despite Hurricane Ike averaged $3.92.