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A decision by a federal appeals court panel has restored an antitrust lawsuit by truck buyers — fleets and dealers — against transmission maker Eaton Corp. and every heavy-duty truck maker in North America.

A battle within the business world is growing over the use of a slice of the radio frequency spectrum. It pits vehicle manufacturers and their allies against Wi-Fi providers, often owned by telecommunications companies.

WASHINGTON — Volvo Trucks North America unveiled its version of SuperTruck for inspection by Energy Secretary Ernest Moniz, with the modified VNL 670 highway tractor demonstrating an 88% gain in freight efficiency and an extra 70% in fuel economy.

WASHINGTON — Volvo Trucks North America unveiled its version of SuperTruck for inspection here by Energy Secretary Ernest Moniz on Sept. 13, saying its VNL 670 highway tractor demonstrates an 88% gain in freight efficiency and an extra 70% in fuel efficiency.

German automotive manufacturer Volkswagen AG is expanding its Truck & Bus division into the U.S. market by acquiring a stake in Navistar International Corp., a deal that also provides Navistar with more efficient procurement and better access to new technology for engines and other applications.

ALLENTOWN, Pa. — Mack Trucks rolled out its 2017 lineup, featuring four in-house engines designed to meet federal greenhouse-gas emissions standards that tighten Jan. 1.

LISLE, Illinois — Last week’s Volkswagen-Navistar deal was announced just before the maker of International Trucks reported quarterly earnings showing there is progress, albeit rocky, in recovering from what one of its executives called, “the sins of the past” — the 2010-2012 miscalculation on engine technology.

The net loss at truck maker Navistar International Corp. accelerated from the company’s previous fiscal third quarter as revenue dropped 18%, year-over-year, due to anemic North American heavy-duty truck sales.

Volkswagen AG’s pending acquisition of 16.6% of Navistar International Corp. for $256 million will provide the Lisle, Illinois, truck maker with cash soon and then more efficient procurement and better access to new technology for engines and other applications, Navistar CEO Troy Clarke said in an interview.

ALLENTOWN, Pa. — Volvo Group’s two North American operating companies have agreed to exhibit at the North American Commercial Vehicle Show in Atlanta a year from now and will either reduce or suspend their connection with the Mid-America Trucking Show in 2017.