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  1. I finally figure out why MPG was dropped in winter.

    Lexus CT200h General Discussion Forum
    I found my MPG dropped from 42 MPG to 37 MPG in winter time, and read a lot explanation of engines and gas theories. But I finally figure out it's my interior temperature setting affect it so much. Here is my theory: I set temperature to 68F in summer without AC, and 74F in winter. My wife set...
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