The ZF EcoLife transmission is a 6 speed transmission for city buses and diesel commuter rail applications, designed by ZF Friedrichshafen. It features boosted operating economy, longer service life, and higher temperature resistance for operation with Euro 5/6 compatible engines. It also boasts an integral retarder, longer operational intervals between oil changes, higher torque capacity, and "Dynamic, topography-dependent drive program selection" among others.[1]

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