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My 03 6cil. SF has about 98K miles and I have never changed the spark plugs. I will be taking a trip in a few weeks and would like to have better power.

how often should I replace the spark pulugs?

what tipe should I use?

Thank you for your help
 

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Spark plugs aren't going to give you more power. You may notice a slight increase in gas mileage. NGK is the general recommendation for the Hyundai Community. I recently installed a full set of NGK Iridium and cannot say anything bad about them. I was able to pick them up to $45 for 6.
 

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QUOTE (aruizdelhoyo @ Apr 21 2010, 10:47 AM) index.php?act=findpost&pid=315374
My 03 6cil. SF has about 98K miles and I have never changed the spark plugs. I will be taking a trip in a few weeks and would like to have better power.

how often should I replace the spark pulugs?

what tipe should I use?

Thank you for your help

should be done roughly every 60k. Champion or NGK would be recomended. While your in there you might as well do your wires. Make sure you get the gasket too.

You can also look into a throttle body cleaning and an injector flush. Helps in the MPG and some performance from feed back from some customers. They tend to say the car runs smoother.
 
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