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deteriorating

  1. Deteriorating Gas Milage

    Problems & Issues
    I need some advice. I have a 2004 CRV, 180,000km's, very well maintained. Milage has deteriorated over the last few years. Recently replaced plugs, air cleaner and changed oil. Thermostat is new. Starts and runs like a swiss watch but poor milage persists and Honda dealership is useless. HELP!
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