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DALLAS — Several trucking executives gave their reasons for changing some of their fleet operations to either compressed or liquefied natural gas, and said they were backers of the alternative fuels for reasons ranging from economic to sustainability.

DALLAS — A large national propane supplier has introduced a first-ever Class 8 propane-diesel blended fuel system certified by the U.S. Environmental Protection Agency as emissions-complaint.

DALLAS — Several trucking industry executives said they see a future for natural gas as a viable fuel for the industry despite relatively low oil prices.

DALLAS — Fourteen major trucking fleets operating more than 53,000 tractors and 160,000 trailers achieved almost half a billion in fuel savings last year by adopting a variety of fuel-efficient technologies, according to an annual fleet fuel study released by the North American Council for Freight Efficiency.

DALLAS — Frito-Lay North America has reduced its diesel fuel consumption significantly since it began adding natural gas, electric and high-efficiency diesel trucks to its fleet over the past 10 years, a company executive said.

DALLAS — Cummins Westport Inc., the joint venture between Cummins Inc. and Westport innovations that makes natural-gas engines, unveiled a new 6.7-liter nat-gas engine that will be in full production next year.

DALLAS — A nonprofit group fighting sex trafficking on the nation's highways issued an appeal that truckers and shippers train their employees to report suspicious activities.