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I did mine at 30000 miles too and they looked fairly good and could have easily gone another 8000-10000 more miles.
 

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What's Old is New Again!
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I did mine at 30000 miles too and they looked fairly good and could have easily gone another 8000-10000 more miles.
Mine too. But the change did gie a smoother, more responsive throttle response.
 

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Average Guy
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I just hit 30K this week also and wondering the same thing. I still have on the original Firestone tires, they look like another 5 or 6K and they'll need to be replaced.

So it sounds like 35 - 40K would be a good point to change out the plugs?

Any opinion on plugs (at a reasonabl price)?

30K and not a single problem (other than the rocker panels), the car runs great! :smileup:
 

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On my wifes 300C I changed them several years ago at 50,000 miles and they looked pretty good. Couldn't really tell any difference after the change.
 

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What's Old is New Again!
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I just hit 30K this week also and wondering the same thing. I still have on the original Firestone tires, they look like another 5 or 6K and they'll need to be replaced.

So it sounds like 35 - 40K would be a good point to change out the plugs?

Any opinion on plugs (at a reasonabl price)?

30K and not a single problem (other than the side rails), the car runs great! :smileup:

For a car that's mainly stock I'd stick with OEM recommended plug NGK #LZFR5C-11.

I got my last set off of eBay. They were cheaper than the dealership. Make sure you use anti-sieze on the threads and di-electric grease in the boots. Factory specs call for a .043 gap, I gapped mine at a tight .045

Also, save yourself a little time during the install. Gap and anti-sieze before.
 

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These were mine at 30000 miles.
 

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2016 Challenger Scat Pack Shaker
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These were mine at 30000 miles.
They only put 6 plugs in your 8 cylinder R/T?
I had mine replaced at like 50k. They were a little worn. I think it runs better.
 

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My only concern with not changing them out at 30 k is what impact it could have on the power train warranty.I don't want to give Dodge any excuses.
 

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My only concern with not changing them out at 30 k is what impact it could have on the power train warranty.I don't want to give Dodge any excuses.
Good point Art, I guess not changing them would be giving dealer ammunition that they could use against you if there is a problem.
 

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Dazed & Confused
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I did mine at 28k, they looked good. I would have no problem stretching them a little further than what the manual says.
 

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Totally worth it, changed mine 29500 and they looked pretty good, however the gaps were all wrong and there was some build up on them. After I replaced them I noticed better throttle response and the early morning second gear lurching out of my neighborhood stopped. It accelerates much smoother now just overall happier.
 

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I haven't changed my but I will do them after the winter season my car is at 48K now.
 

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Average Guy
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For a car that's mainly stock I'd stick with OEM recommended plug NGK #LZFR5C-11.

I got my last set off of eBay. They were cheaper than the dealership. Make sure you use anti-sieze on the threads and di-electric grease in the boots. Factory specs call for a .043 gap, I gapped mine at a tight .045

Also, save yourself a little time during the install. Gap and anti-sieze before.
Thanks Bad8nti, appreciate the guidance!
 

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For a car that's mainly stock I'd stick with OEM recommended plug NGK #LZFR5C-11.

I got my last set off of eBay. They were cheaper than the dealership. Make sure you use anti-sieze on the threads and di-electric grease in the boots. Factory specs call for a .043 gap, I gapped mine at a tight .045

Also, save yourself a little time during the install. Gap and anti-sieze before.
I couldn't find a cheap set of 16 on ebay, but did find a Chrysler OEM parts site that has them for $4 each. My dealer wants $8 so that's a savings of $64 on a change.

http://chrysler-partscenter.com/par...=SPLZFR5C11&action=oePartSearch&siteid=217025
 

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I did mine at a little over 40k and the engine still ran good but MPG's had fallen off some and once I changed them I could immediately tell the difference. I will change them out at 30k intervals from now on, it gets better MPG's and is WAY smoother.
 
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