Spark plugs

Asked by Mar 14, 2017 at 11:51 PM about the 2004 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

I have a 2004 pontiac grand prix GTP what is the
factory recommendation on the kind I use .. and or
your recommondation.. my gas mileage is terrible..

3 Answers

21,115

Normal plugs ACDelco .060 gap.

21,115

They even have a 100,000 mile limited warranty.

21,115

Could try the new ACDelco Professional Iridium - Spark Plug has the 100,000 mile limited warranty too.

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