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Because spark plugs on many newer cars are so hard to get at you want them to last as long as possible. You can replace them with standard plugs but if they only last half as long, the labor involved makes that a poor value. I would stick to the platinum plugs. I hope this helps you. Mark Having researched Iridium spark plugs and installed sets in two Gm vehicles I highly recomend using them AC 41-101 is probably the correct one for your vehicle

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โˆ™ 2005-12-02 21:30:06
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Q: Must you use the original platinum type of spark plugs in your 1997 Pontiac Bonneville?
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