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The Federal Motor Carrier Safety Administration launched a campaign last week to warn truck drivers about the dangers of using navigation systems designed for smaller vehicles.

NASHVILLE, Tenn. — Volvo Trucks said it will collaborate with telematics providers Telogis and Trimble Navigation Ltd. in a move that could give rise to factory-installed fleet management technology in the heavy-duty truck market.

NASHVILLE, Tenn. — There is a drawing of the cartoon character Yosemite Sam hanging in Kirk Altrichter’s office that says a lot about the man who is the new public face of American Trucking Association’s Technology & Maintenance Council.

Retail diesel prices declined for the second consecutive week — from $4.13 a gallon to $4.088 — raising hopes that the price might not stay above $4 for long.

Trucking and transportation stock indexes have increased more rapidly over the past six months than those for the broad market, with most of the growth coming since the start of 2013.

The contraction in heavy-duty U.S. retail truck sales worsened in February, with volume falling by 18.6%, the sharpest rate of decline during the current six-month streak of reductions.

U.S. retail pump prices for diesel exhaust fluid remained steady in February at $2.79 a gallon, the third straight month they have held at that level, according to the latest DEF Tracker released this week.

UPS Inc. said it has committed to hire more than 25,000 veterans over the next five years.

Cummins Inc. and Peterbilt Motors Co. said they have developed a demonstration “SuperTruck” capable of averaging 10 miles per gallon in real-world conditions, a 54% increase in fuel economy.