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octane

  1. A

    Fuel Preferences, Additives Too

    What kind of fuel do you use in your rig? After Hurricane Sandy hit NY, I was forced to use Premium 92 Octane Gas for a few weeks because that was all that was available to me. I noticed NO difference in performance and mileage during that time. My truck seems to run well on BP 87 Octane. Does...
  2. M

    Knocking and pinging

    I have a 91 xlt 4.0l v6...when I put my foot to the floor it makes a knocking/pinging noise...I was wondering what I can do to fix this? I am filling it with regular from chevron so its good gas...can my intake have any input on this? lack of octane? Thanks!:us:
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