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September 21, 2015

The Downspeeding Learning Curve

Today's "downsped" drivetrains can improve fuel economy, but high torque and low axle ratios can create all sorts of havoc with drivetrain components.

March 26, 2015

Volvo Expands XE Powertrain Lineup

Volvo Trucks expanded the XE powertrain package lineup with a super direct drive version using the I-Shift transmission. The company also expanded its Remote Diagnostics service to monitor I-Shift components as well.

February 16, 2015

Dana Delivers Web-Based Training to Clarify Downspeeding

Dana's new online course will delve into the basic principles, benefits, and challenges associated with engine downspeeding. It also provides a one-stop source for key drivetrain system knowledge, individual component specifications, literature, videos, images, service bulletins, and parts books.

January 26, 2015

Powertrain Specs: More Science Than Art

Torque is both an enabler of downspeeding and a source of concern about delivering peak torque at very low engine speed.

November 14, 2014

Test Drive: Western Star 5700XE

Western Star’s 5700XE might just be everything to everyone. It’s a big classic-styled truck with second-to-one aerodynamics.

October 17, 2014

Commentary: When Well-Intentioned Rules Have Unintended Consequences

Keep up the good work on cutting fuel use, but make sure to do your homework.

October 6, 2014

Meritor Adds Drivelines for Heavy Service Fleets

SAN DIEGO -- Meritor is adding the RPL35 and RPL35SD drivelines to its Permalube RPL family of truck drivelines designed for heavy service applications.

September 24, 2014

Engine 'Downspeeding' Can Cause Driveline Failures, TMC Attendees Told

Driveline damage from engine torque “spikes” is among the many nuts-and-bolts subjects discussed by fleet managers and supplier representatives this week at a maintenance conference in Florida.

May 16, 2014

Meritor Adds Two New Axle Ratios to Improve Fuel Efficiency

Two new axle ratios are available from Meritor, optimized to meet trucking's demand for improved fuel efficiency. Lower axle ratios promote downspeeding for optimum fuel efficiency.



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