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New xFE transmission from Allison delivers 8 percent fuel economy improvement for Nottingham City Transport

NOTTINGHAM, UK, Oktober 2015. An ADL Enviro 200 city bus equipped with Allison Transmission’s new fully automatic T3280 xFETM has delivered an 8.15 percent improvement in fuel economy over a 12- month test period in regular operation. Designating extra fuel economy, xFE is a new series of bus transmissions offering the same space claim and ratings as current models, with optimized gear ratios coupled with Allison’s FuelSense® Max package.

“Last year, we turned to ADL, Cummins and Allison to help us be more efficient, as fuel is our second biggest cost as a business,” said Gary Mason, engineering director at Nottingham City Transport. “It was a timely coincidence that Allison was about to introduce a new generation of transmissions, and so we were more than happy to assist with providing a back-to-back trial on the 390 bus.”

The xFE transmission’s gear ratios have been configured to achieve enhanced fuel economy in start-stop dense, low-average-speed duty cycles, such as those common to transit and city buses operation. They have been designed to enable 1st range lock up, deliver significantly more lock-up operation and operate at lower engine speeds while in higher ranges, to further improve fuel economy.

“Just a 5 percent improvement in fuel consumption gives us an extra 2,000 miles each year for the same amount of fuel,” said Mason. “That’s good for the company and good for the environment. The results from this new transmission are exactly what we are looking for.”
Allison Transmission’s new xFE transmission range will debut in Europe at Busworld, Oct. 16-21 (Hall 2, Stand 202).

In August, the Ann Arbor Area Transportation Authority (TheRide) in the U.S. became the first transit agency in the world to feature the new automatic transmission, dedicating 60 new buses equipped with xFE models.

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