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May 2015, - Feature

The Challenge of Standardizing Aerodynamic Testing

One of the new testing methods allowed for EPA SmartWay verification is wind tunnel testing. Here a scale model is prepped carefully before the test; small irregularities can make a big difference in the outcome.

By Jim Park

Aero device manufacturers now have a choice of test methods to prove the effectiveness of their devices. Are consumers any better off?

Tags: SmartWay, Fuel Efficiency, EPA, Test Drive, Aerodynamics

July 2014, - WebXclusive

The Peterbilt-Cummins SuperTruck, Part 2: More Secrets Revealed

Cummins ISX15 with waste heat recovery from the front-right side

By Jim Park

The Peterbilt-Cummins SuperTruck project achieved almost-unheard-of gains of 68% in freight efficiency over a 24-hour duty-cycle, a 50% improvement in freight efficiency on an 11-hour drive-cycle and a 20% improvement in the thermal efficiency of the engine. How did they do it, and what does that mean?

Tags: Cummins, SmartWay, Peterbilt, EPA, U.S. Department of Energy, SuperTruck, Engines, Fuel Economy

January 2014, - Feature

Truck Buying Options: New, Used, Buy or Lease

By Tom Berg

What’ll it be, buddy? New or used? Buy or lease? A salesperson could throw those questions at a prospective buyer and get a combination of answers, and none of them would be absolutely wrong. Because like everything in trucking, “it depends.”

Tags: Used Trucks, EPA, Glider Kits, Kenworth, Peterbilt, Freightliner, Clarke Power Services, NationaLease, Ryder, Penske, IdeaLease, Paclease

January 2014, - Cover Story

Save Fuel, Increase Profit, Save the Planet

By Tom Berg

Is this a case of win-win? Do the new regulations limiting greenhouse gas emissions help both the environment and truck operators’ bottom lines? So it seems.

Tags: Volvo, Kenworth, Eaton, Navistar, Freightliner, Peterbilt, SCR, EPA, Mack, GHG emissions, API, GHG14

January 2014, - Feature

Will Truck Owners Face GHG Enforcement?

By Tom Berg and Oliver Patton

Truck owners and manufacturers share responsibility for compliance with new limits on carbon dioxide emissions and fuel economy.

Tags: ATA, GHG, TMC, EPA, Clean Air Act, GHG emissions, NHTSA

September 2013, - Feature

Diesel/Natural Gas Conversions Offers Owners a Choice

By Deborah Lockridge

A dual-fuel conversion system can offer some of the fuel- and emissions-saving benefits of a natural gas engine without going out and buying a brand-new truck. Read more in this story from the September issue of HDT.

Tags: EcoDual, APG, Omnitek, Dual Fuel, EPA, Natural Gas, Alternative Fuels & Hybrids



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