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C Tucker

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  • Location
    Hamilton Ontario canada
  • Drives
    2018 GMC Sierra elevation 5.3 6spd automatic

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  1. hello everyone I'm a Newbie here I own 2018 GMC Sierra elevation 5.3litre 6spd automatic I have 70,000km on it I get pinging/detonation at highway speed when trying to accel faster. I am using Costco 87 octane is that my problem no check engine light I've tried octane booster(lucas) and it's still there any suggestions please northerngmc
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