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Navistar International Corp. will use federal emission credits to enable its new Class 8 engine to meet 2010 federal emission standards, although the engine could be set up to comply with the regulation without the credits, a Navistar executive said.

The average price of U.S. retail diesel fuel continued to slide last week, falling 13.5 cents a gallon to a 17-month low of $2.809, the Department of Energy reported.

FORT LAUDERDALE, Fla. — ABF Freight System will use diesel engines with selective catalytic reduction technology starting in 2010, but the less-than-truckload carrier has not decided upon the truck maker it will use.

Reversing Bush administration policies, including its denial of California’s request for a waiver allowing the state to regulate automobile greenhouse-gas emissions, could be high on President-elect Barack Obama’s agenda in January, some observers said.

Adding biodiesel to Canada’s existing fuel storage, blending and distribution infrastructure could spur a host of problems for the country's distillate market, the Canadian Trucking Association said.

Logistics companies face significant new challenges as both shippers and carriers look for ways to cope with financial turmoil, volatile fuel costs and slumping demand for goods and services.

The U.S. average retail diesel price dropped 14.4 cents to $2.944 a gallon last week, falling below $3 for the first time in 14 months, and is expected to drop even further next year, the U.S. Department of Energy said.