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Eaton says study proves AMTs more fuel-efficient than true automatics

KALAMAZOO, Mich. -- Research conducted by Roush Industries for the US Army has indicated automated manual...

KALAMAZOO, Mich. — Research conducted by Roush Industries for the US Army has indicated automated manual transmissions can be up to 22% more fuel efficient than conventional automatics.


The findings stem from an independent simulation conducted for the US Army Tank Automotive Research, Development and Engineering Centre/National Automotive Center (TARDEC/NAC). Eaton Corp., a manufacturer of automated mechanical transmissions, is applauding the results.


“We are extremely pleased with the results of this study as it once again confirms the fuel-saving benefits that are inherent in our growing line-up of automated transmissions,” said Staci Kroon, senior vice-president and general manger, commercial vehicles for Eaton’s Truck North America Division. “In addition, it is always a positive when you can help reduce our industry’s carbon footprint. Our family of UltraShift transmissions is one way of reducing our industry’s carbon footprint and it is consistent with Eaton’s sustainability mission. This is definitely a win-win situation for both our customers and the environment.”


The test was conducted using analytical simulation software in order to keep uncontrollable outside variables from impacting the results, Eaton said in a release. The company says the fuel economy gains may be attributable to the increased number of gears available on AMTs and an optimized shift schedule that “will keep the engine running in its most efficient range.”

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