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      05-14-2012, 11:51 AM   #17
cc3
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Drives: 1M, GT4, M2 M140i G40
Join Date: Mar 2011
Location: .UK

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Wonder how many miles Eco Pro will add to a tank. My wife's 1 series has it and whilst it makes the accelerator feel numb it adds about 20 miles to a tank of fuel. So 5% improvement roughly Anyone any experience yet of how Eco Pro feels on the X3??
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