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  1. Bad fuel economy: is my dashboard engine temp gauge reading too low?

    2005 - 2010 Odyssey
    My '07 w/ 111k miles on the odometer is doing terrible on fuel economy. I drive mostly on city roads, and I'm getting no more than 11mpg. Potential cause #1: I've had a few throws of P0420 this winter and so replacing O2 sensors is on the radar. The sensors are original---regardless of whether...
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