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  1. 6 cyl mileage survey... / TB-Envoy recommendations needed!!!

    Engine Tunes/Mods
    OK - I need help from all of you 6 cyl owners out there (which should be MOST of you!!!). My wife and I are trying HARD to convince her Mom that she needs to get an Envoy (which a local dealer has put her in for the weekend with 38K miles) over a Mercury friggin Mariner... What I want to know...