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Turbochargers are not typically a red-flag item on fleet maintenance agendas, but straying from routine service can set the stage for catastrophic failure, manufacturers and maintenance experts said.

Louisville, Ky. — Michelin Americas Truck Tires introduced two new products here at the Mid-America Trucking Show that it said will help fleets boost fuel efficiency.

LOUISVILLE, Ky. — Independent engine maker Cummins Inc. said it is introducing its “SuperTruck” research done in conjunction with Paccar Inc. into commercial production between now and the end of this decade, with much of it expected in 2016 or 2017, when the federal government is scheduled to tighten its standards for truck engine fuel economy.

NASHVILLE, Tenn. — Engine manufacturer Cummins Inc. and component maker Eaton Corp. unveiled a new powertrain package last week that they said will provide between 3% and 6% better fuel economy than current baseline products for linehaul and regional haul applications.

Engine maker Cummins Inc. and component manufacturer Eaton Corp. unveiled a new powertrain package for the North American heavy-duty truck market that they said will boost fuel economy by 3% to 6%.

Truck and auto component maker Dana Holding Corp. said it introduced a new driveshaft and inter-axle shaft, designed for greater torque and durability.

Engine maker Cummins Inc. and component manufacturer Eaton Corp. unveiled a new powertrain package for the North American heavy-duty truck market that they said will boost fuel economy by 3% to 6%.

Accuride Corp. posted a $156.5 million fourth-quarter loss, citing a charge related to its Gunite division.

Component supplier Commercial Vehicle Group said Friday that CEO Mervin Dunn will retire this year but will remain in the post until a successor is appointed.