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AN: Spotlight: stop-start systems

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Ram is adding a stop-start system to the Ram 1500, with the arrival of the HFE model; along with other changes, many based on Department of Energy projects, it will raise gas mileage to 18 city, 25 highway. For the first time, a full size pickup truck will achieve the same gas mileage as a minivan — though that’s partly because they share an engine (another first), the Pentastar V6. The Ram 1500 HFE was announced for 2013, but might wait until the 2014 model year.

A stop-start system cuts the engine while the driver is temporarily stopped, and automatically restarts it when needed; most hybrids have this as part of the overall package, but it’s normally only referred to as a separate system when installed in a car with no hybrid system (no electric motor or regenerative braking). The system in the Ram is expected to restart the..

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