For the third week in a row, the national average retail price of a gallon of diesel declined this week, according to the U.S. Energy Information Administration. The price dropped 4.1 cents to $2.98 in the latest week, the first time the national average has been below $3 since late March.
All regions reported big declines, led by a 6.8-cent decrease to $3.094 in California. The expensive West Coast fell 5 cents to $3.082. The cheapest diesel can be found on the Gulf Coast at $2.936, while the highest price is in the Central Atlantic area at $3.121.
For state-by-state diesel prices, updated daily, click here.
Affected trucks include model year 2008-2018 Freightliner Cascadia and Western Star 4700, 4900, 5700 and 6900 trucks. DTNA says after hard brake applications, the brake light pressure switch may not activate the brake lights with the light application of the brake pedal.