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Spark Plugs for the 5.3... ?

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Old August 7th, 2016, 10:52 AM
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Default Spark Plugs for the 5.3... ?

Hey Gang- Anyone running anything but the "recommended AC Delco OE" plugs... thoughts on other ones, experience with mileage etc? Surely there is a wealth of experience.
Im reading the ACD stuff if just rebranded and you never know from who...

Love some thoughts here!

- Grae
Old August 7th, 2016, 12:07 PM
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Brand doesn't matter. Champion, Bosch, etc.....but make sure its the right type. eg. Iriduim over double platnum.....
Old August 8th, 2016, 3:39 PM
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So just get iridium version of any plug...specifically irridium?

I called my local gm parts dealership. .. they actual gave me the part number for a platinum ACDelco plug.
Old August 9th, 2016, 5:55 PM
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On parts geek almost every option is iridium except for the 4.3 v6 which has more platinum options.
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