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07/15/2015

STEMCO Announces Development of New Real-World Fuel Efficiency Test for TrailerTail® Technology

(LONGVIEW, TEXAS – July 15, 2015)  STEMCO, an EnPro Industries company (NYSE: NPO), announced that it has developed a new fuel efficiency testing technology for TrailerTail® aerodynamic equipment. The real world DataLogger™ test provides fleets with an extremely fast, precise and significantly less expensive method of testing the fuel efficiency of TrailerTail technology using a fleet’s own truck, trailer and driver in under four hours. 

The palm-sized DataLogger™ (developed in partnership with IOSiX, LLC) plugs directly into the tractor’s J1939 diagnostic port and accesses engine data. A STEMCO field technician conducts a controlled test with the fleet’s truck, trailer and driver.  STEMCO engineers then analyze the data to precisely break down how much fuel the TrailerTail system will save that specific fleet.    

The technology’s testing protocol and filtering algorithm were developed specifically to provide a customized data stream that isolates the aerodynamic variables while minimizing the disruptive effect that inconsistent wind, temperature and traffic can have when comparing different test runs to measure fuel economy improvements.

“TrailerTail technology has proven in numerous standardized aerodynamic tests that it reduces fuel consumption by over 5% at highway speeds,” said Bob Montgomery, vice president of the Innovative Tire & Mileage Solutions group at STEMCO, “But many fleets really want to know that it will work for them in their specific operation, not just on a test track or in someone else’s fleet.  The DataLogger™ provides a means to prove fuel savings in a matter of hours.”

Over a dozen fleets have tested TrailerTail® using the DataLogger™ with results consistently approximating 4.5 percent, equating to an average mile per gallon improvement of 0.44. These results are also consistent with fuel savings reported from fleet-wide TrailerTail deployments. 

“Historically trying to find the ROI on an investment such as this has required an enormous financial expense as well as an intense study of fuel purchases and mileage data over a long period of time,” said Trevor Kurtz, of Brian Kurtz Trucking. “In just four hours on a rainy, cold day in December we were able to obtain real fuel savings numbers using the DataLogger test.  With over 70 TrailerTails now installed, we are consistently achieving the test results or better.”

About STEMCO
With offices and manufacturing facilities in Texas, Georgia, Michigan, Kentucky, Tennessee, Ohio, California, Canada, China, Australia and Mexico, STEMCO is a leader in the technology and manufacture of commercial vehicle wheel end, braking and suspension components, as well as innovative tire & mileage solutions. STEMCO is an EnPro Industries, Inc. (NYSE: NPO) company. EnPro is a leader in the manufacture of sealing technologies and engineered products for use in critical applications by industries worldwide. For more information, visit the STEMCO website at www.stemco.com.

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