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Thread: Mileage and Spark Plugs

  1. #1
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    Post Mileage and Spark Plugs

    Can you change from Denso PFR11'S (The OEM Plug) and get better mileage and not trigger the ion sensor check engine light? Thx

  2. #2
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    Quote Originally Posted by blacksambo View Post
    Can you change from Denso PFR11'S (The OEM Plug) and get better mileage and not trigger the ion sensor check engine light? Thx
    ngk platinum for couple months - no MIL light, sensors ok etc.. but did not make any diff on gas mileage. for better gasmileage is better to change oxygen sensors

  3. #3
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    What do you change the oxygen senors to? Thx

  4. #4
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    Quote Originally Posted by blacksambo View Post
    What do you change the oxygen senors to? Thx
    ntk made oxy sensors works pretty good

  5. #5
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    How much better mileage improvement? Thx

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