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Trailer maker Wabash National Corp. said it would sell 1,900 trailers to refrigerated carrier Prime Inc.

Nissan Motor Co. will spend $118 million to convert an underused Mississippi truck plant and build its first commercial vehicles in the United States, Bloomberg reported.

As we move closer to the next federal mandate on emissions — which comes into force for 2010-model heavy-duty trucks — proponents of the two competing technologies are beginning to publicly argue over the superiority of their choices.

The average pump price of regular gasoline rose 5 cents in the past two weeks to $3.32 a gallon, according to the latest Lundberg Survey of filling stations released Sunday.

Volvo Trucks North America said its heavy-duty engines can now be equipped with an option to meet California’s anti-idling restrictions.

The February increase in truck tonnage that American Trucking Associations reported late last month — the fourth straight rise — may signal better times ahead for truckers and the U.S. economy, several industry analysts and observers said.

Auxiliary power units, initially pushed by federal and state governments to reduce air pollution despite concerns by fleet owners and owner-operators over their initial cost, are attracting more buyers who purchase them for the fuel savings, now that average diesel prices are about $4 a gallon.

The national average retail diesel price dipped 2.5 cents a gallon last week after six straight increases, the Department of Energy reported, even as gasoline rose 3.1 cents to set a new record high.

Spot protests by truckers over high diesel fuel prices continued in several states Friday, news services reported.