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The U.S. average retail price of diesel dropped 1.7 cents to $3.338 a gallon as prices for West Texas Intermediate crude oil continued to sink despite concerns that global supplies could fall amid U.S.-imposed sanctions on Iran. It was the third consecutive weekly decline in the price of diesel.

Nikola Motor Co. announced it would begin production within five years in Europe of a heavy-duty, hydrogen-electric truck designed to be compatible with full autonomy as it expands its business beyond North America.

AUSTIN, Texas — Shell Lubricants announced the launch for fleet customers and noncustomers alike of Shell ProAcademy, an online modular learning tool intended to educate and retain technicians.

OAKLAND, Calif. — Representatives from UPS Inc. and Walmart Inc., two of the country’s largest fleets, said electric vehicles can provide environmental, economic and community benefits, which make efforts to work through challenges surrounding duty cycle, charging infrastructure and cost worthwhile.

UPS Inc. and Seattle Mayor Jenny Durkan announced Oct. 25 the parcel delivery company will begin a pilot project aimed at reducing congestion downtown and addressing air quality concerns. Delivery drivers will use electric pedal-assist cargo bicycles with a customized modular trailer attached to the back of the bike.

A misconduct investigation completed by Tennessee Technological University concluded that university researchers erred when stating in an industry-funded glider kit study that emissions from the trucks are as clean or cleaner than those from newer trucks.

AxleTech and Thor Trucks have partnered to create a fully electric commercial vehicle powertrain, according to an Oct. 16 press release. The two will integrate AxleTech’s e-axle technology with Thor’s proprietary battery technology.

INDIANAPOLIS — Sales of Class 8 natural gas fueled trucks are rising, grants and incentives for using alternative fuels are expanding and more related regulations are coming as major shippers pursue environmental sustainability, experts said at an industry forum here.

Four House Democrats have asked the Environmental Protection Agency Inspector General to investigate a glider truck study by a Tennessee Tech University researcher. The study already is the subject of a research misconduct investigation by the university.

Elon Musk will give up the role of Tesla Inc. chairman and pay a $20 million penalty to settle fraud charges brought by the U.S. over his claims about taking the company private.