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  1. 2010-2013 Mazda 3 Engine and Performance
    I just put my first tank of gas in my '13 i Touring hatch after purchasing it ~2 weeks ago. Surprisingly my avg MPG only came out to 29.2 MPG with conservative hwy driving and some city driving. I did some poking around and it seems people recommend resetting the ECU. I couldn't find a specific...
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