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Discussion Starter #1
With 60k right around the corner I'm looking for suggestions. Dealer did the 8 @ 30k But this was with the orignal owner. I'll be doing all 16 after xmas.

Happy Holidays to all.
 

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2nd04Durango
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Unless you use your Durango for long term heavy towing, have the engine rebuilt for racing or higher power, there is not really any need to go with anything better than the standard Champion plugs. The platinum and premium brands may have advertising claims of being better but in the end there is very little difference on our stock engines.

That is not to say they may have better usage on other vehicles, just with our Durangos there is no need outside of special use situations.

Remember, copper doesn't absorb heat the same way so it tends to give a much more complete spark but also since it does not absorb as much heat, it will not cause early detonation versus platinum and iridium plugs do absorb the heat so after extended or heavy usage, they have a higher likelyhood to overheat, cause early detonation (rough idle, worse gas mileage, running poorly at higher RPMs) or pass along the heat out to the boots and coil causing more problems.
 

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Discussion Starter #3
Thanks Just have to see what plugs are where and was hoping to maybe get a better set for the 8 that need changing every 30k. That seems quite often with todays technology in plugs
 

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2nd04Durango
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The basic plugs have not changed much in 30-40 years, but with todays modern engines that run cleaner and longer than ever, you should be able to get a good 50K between changing unless there are other issues with that engine, or you use gas with lots of additives (more than usual).
 
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