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Thread: Fuel Octane Plug

  
  1. #1
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    brainreyd's Avatar
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    Fuel Octane Plug

    I have recently been aware of the fuel octane plug which can be switched from 95 RON to 98 RON. It is supposed to be near the coolant expansion tank but I cant seem to find it.

    My mate has one on his 1.4 8v X14NZ but its not their on my 2.0 16v X20XEV Ecotec. Is it somewhere else or do I not have one on my car.

    Cheers, Bri

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    ZS's Avatar
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    Modern engines don't have the octane plug. They're smart enough to know the difference in the fuel.

    The last Vauxhall I saw with the plug was a '92 Corsa 1.2 8v

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    Yup the X20XEV doesnt have one, it uses knock sensors to advance or retard the ignition for varying types of fuel.

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