Please find below links to all currently available reports of the NACFE. Trucking Efficiency is a series of reports to help fleets, manufacturers and others understand the confidence end users should have when adopting various technologies. These Confidence Reports include a Technology Overview, an Executive Summary and Video Summary of the report, as well as tools developed during the projects. NACFE also conducts other industry projects and reports which are also provided below.

Confidence Reports

Tire Pressure Systems

      - NACFE’s first ever Confidence Report is a deep dive review of all the available technologies for ensuring appropriate tire pressure. Benefits of such systems include decreased roadside breakdowns, improved tire life and better fuel efficiency. This groundbreaking report describes the various technologies, identifies manufacturers, shares tractor and trailer OEM’s as well as fleet experiences. Finally, two tools have been developed for adoption analysis; a technology selection tool and a payback calculator.

Tire Pressure Systems Executive Summary

Tire Pressure Systems Detailed Confidence Report

Tire Pressure Systems Tools

Payback Calculator

Technology Selection Chart

6×2 Axles

          – Many fleets are converting their specifications to include a 6×2 axle configuration rather than a 6×4. By having only one drive axle the truck weighs less, has better fuel economy. Traction is one of the major concerns and NACFE has found that by utilizing load shifting technology the traction issue is significantly improved. NACFE tested trucks for fuel economy and traction, the full Confidence Report package can be downloaded below. A media release can be viewed



6×2 Axles Executive Summary

6×2 Axles Detailed Confidence Report

6×2 Axles Tools

Payback Calculator

Idle Reduction

      - NACFE announces that the 3rd Confidence Report will be on sleeper tractor Idle Reduction Solutions. This report will include such technologies as diesel APUs, Battery HVAC, diesel fired heaters, truck stop electrification, shore power, and others.

Idle Reduction Executive Summary

Idle Reduction Detailed Confidence Report

Idle Reduction Technology Overview

Idle Reduction Team Introduction

Automated Transmissions

      – NACFE is launching our next Confidence Report on automatic and automated manual transmissions for Class 8 tractors.

Automated Transmissions Technology Overview

Automated Transmissions Team Introduction (Coming Soon)

Driver Coaching Aids

      – NACFE is launching another Confidence Report on driver coaching aids for improved fuel economy operation of Class 8 tractors. This will include such items as driver training and incentives, scorecards for coaching and devices available to support driver actions for improved efficiency.

Driver Coaching Aids Technology Overview

Driver Coaching Aids Team Introduction (Coming Soon)

Future Confidence Reports could include Tire,Trailer Aerodynamics, Information Technology, Light-weighting, Maintenance, etc.

Annual Fleet Fuel Study

      -The North American Council for Freight Efficiency (“NACFE”) has built on what has been called the “The most comprehensive study of Class 8 fuel efficiency adoption ever conducted”. The Council added 2011 and 2012, to the eight years of data included in the prior project and Bison Transport and UPS joined. Fleets reported technology adoption delivering $5,700 per year per truck in fuel savings.

2013 Fleet Fuel Benchmark Executive Summary

2013 Fleet Fuel Benchmark Report

Testing Reports

November 2013, NACFE was engaged to help plan, execute and validate a fuel efficiency test of a platooning technology under development by Peloton Technology. The report below details a 10% fuel consumption reduction for the trailing tractor trailer and 4.5% for the lead combination, when electronically connected at 36 feet separation and 64 mph. A modified SAE J1321 test protocol was used in cooperation with CR England on Interstate 80 west of Salt Lake City.

CR England Peloton Technology Platooning Test

During the summer of 2011, NACFE helped execute and monitor a 5,000 mile fuel economy test for various tire configurations for Michelin NA. This test was conducted as a high mileage confirmation of the improvement in fuel efficiency of various tires in doubles trailer operation.

Michelin 5000 mile fuel challenge

Michelin Test

Other Reports

Uptake and costs of NA trailer fuel efficiency technologies

-NACFE again has collaborated with ICCT to interview the industry on fuel efficiency technologies. This report shares learnings from such an effort on technologies available to fleets for improving the fuel efficiency of NA 53 foot trailers. Items included were tires, tire pressure systems, gap reducers, underbelly devices, skirts and trailer tails. The full report can be downloaded here.  Please feel free to contact us with any questions or comments.

Market Barriers

NACFE is proud to announce that the Market Barriers to Technologies for fuel economy sponsored by the ICCT, is now published. It has been a pleasure working with fleets, owner operators, truck and trailer builders, manufacturers and others on this significant study. Contact us at with questions or comments.

Market Barriers