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Opel adds start-stop tech to Astra ecoFlex; fuel economy jumps to 50 mpg

The Opel Astra 1.3 CDTI ecoFLEX five-door hatchback is already a fuel miser, but with the addition of an optional start-stop system, the Astra now sips even less diesel. Opel claims that, when equipped with start-stop, the ecoFLEX's CO2 emissions drop from 109 grams per kilometer down to 104 g/km and fuel economy jumps from 47.6 miles per

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