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What spark plugs do you use and why ( 2000 and newer silverado's and sieras )

Discussion in 'Chevy Truck Talk & GM News' started by PantheraUncia, Jan 11, 2012.

  1. Learned a lesson awhile back. To bad I had to learn it more than once! OE Plugs and wires only!
  2. dsfloyd

    dsfloyd New Member ROTM Winner 1000 Posts

    The NGK's are/were the same as the AC Delcos. my stock plugs had Acdelco on one side of the plug and NGK on the other side. posted pics of it somewhere on this blog a while back. I like NGK's too. run them in my wifes car and my commuter

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