The U.S. average retail price of diesel dropped 1.2 cents to $3.151 a gallon, the Department of Energy reported. Concerns over demand and supply pushed oil below $59 a barrel, a level not seen since mid-March.

Although large gains have been made in cleaning up new diesel engines, nearly two-thirds of all commercial trucks don’t meet the latest emissions standards. As of 2017, some 36% of all commercial trucks (Classes 3-8) in the United States rely on the newest generation of diesel engines — a 6% increase over 2016, according to the Diesel Technology Forum, which cited the latest data.

The U.S. average retail price of diesel rose 0.3 cent to $3.163 a gallon, the Department of Energy reported, while crude climbed to $63.14, the highest level in almost three weeks amid opposing supply-and-demand signals.

U.S. retail sales of medium-duty trucks in April posted double-digit gains across all classes, WardsAuto.com reported.

The U.S. average retail price of diesel fell 1.1 cents to $3.160 a gallon. Oil prices slipped to $61 a barrel as the United States and China imposed higher tariffs on the other’s goods, which chilled the outlook for demand.

U.S. retail sales of Class 8 trucks in April continued to climb and were the highest of the year, edging past 24,000, WardsAuto.com reported May 10.

Executives with less-than-truckload carrier A. Duie Pyle Inc. said the company is on the verge of operating two battery-electric Fuso eCanter Class 4 trucks in New York City as it steps up its involvement with electrified commercial vehicles.

With interest in alternative powertrains heating up, a mix of suppliers and original equipment manufacturers discussed in their latest earnings reports how they are preparing to help customers who face more options than ever.

The U.S. average retail price of diesel climbed 0.2 cent to $3.171 a gallon, as crude oil prices settled below $63 amid international tensions, the Department of Energy reported May 6.

Wabash National Corp. reported record first-quarter revenue, but net income slipped.