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CHATTANOOGA, Tenn. - Federal prosecutors have long insisted the goal of a fraud scheme at Pilot Flying J was to boost the truck stop giant’s profit and market share, and this week they served up numbers to try to prove it.

WASHINGTON — Electric-vehicle technology for the medium- and heavy-duty sector is developing rapidly, but the price and range of these vehicles must improve for widespread deployment to take hold, industry experts said.

When freezing weather strikes, cold-weather pros know to treat diesel with additives to prevent the fuel from gumming up their engines.

Ford Motor Co. rigged at least 500,000 heavy-duty pickup trucks to beat emissions tests, drivers claimed in a lawsuit, adding to the tally of carmakers linked to diesel-cheating allegations worldwide that started in 2015 with Volkswagen AG.

U.S. crude production will soar to a record this year before rising even more in 2019, according to a government forecast published Jan. 9.

Today’s tractors are more efficient due in large part to the aerodynamic concepts and ideas that truck makers were able to test under the Department of Energy’s 21st Century Truck Partnership, also known as SuperTruck.

Comparatively speaking, today’s over-the-road tractors are slick machines.Improved aerodynamics enables them to slide through the air better than any earlier generation while offering the potential for double-digit improvements in fuel efficiency.

WASHINGTON — With President Donald Trump declaring infrastructure funding a legislative priority for 2018, the White House and congressional leaders are focused on a long-term fix for the Highway Trust Fund, a White House official said Jan. 8.

The U.S. average retail price for diesel jumped 2.3 cents to $2.996 cents a gallon, the U.S. Department of Energy reported, while crude hovered near $62 a barrel amid political tensions in Iran and a decline in active U.S. oil wells.