I've been using the regular 30k mile plugs on my '09 and am due for a change. I see that the 2015 models have a 100k plug. I've been searching the forum for a part number but I can't find one. Anyone know of the correct P/N?

 

I have read on multiple sites that our trucks (up to 2014) do not do well with Platinum plugs. Something to do with the resistance of platinum plugs with the coil packs. People have reported rough idle and other hesitation issues. I have also seen people mention the issues were so bad they had to do plugs again in less then a year. Also something to keep in mind, the longer the plugs stay in your engine, the harder they are to remove. If you do choose to go platinum you should loosen the spark plugs every few years at a minimum to make sure they don't seize into place.


My 11' has 58,000 on the original plugs and i plan on doing them soon but the truck runs fine. That being said like with my 06', i plan on doing plugs every 60K so as not to even worry about platinum plug issues.

 

Thanks, there are so many anecdotal stories about the platinum plugs and the hemi. I guess I'm thinking that the '14s and '15s hemis go 100k with the oem plugs, so why can't mine. I've changed my plugs every 30k and they come out like new and I'm at 90k now. So I'll wait another 20k miles or so and just go with the original 30k plugs.

 

Stick with copper core and change every 30k. Not that hard of a job. NV290 is right. Some engines do not like the fancy platinum or irridium plugs. If it did not come from the factory with them, don't put them in.

 

My guess is Dodge has done something with the ignition system on the 14'+ to allow them to work well with platinum plugs. The fact Dodge held out for as long as they did going to 100k plugs when their competitors already had leads me to believe they must have had a good reason for it. Some people have argued that it's a ploy for them to make money through dealer services but i doubt that. Especially when you consider the fact they have a lifetime powertrain warranty. Why would they "annoy" customers with 30k spark plug changes?

I have heard from more than one mechanic that 100,000 mile plugs on most any vehicle can be nightmares when it comes to changing them considering some people might not hit the 100,000 mile mark for a decade. And that's if they actually do make an appointment at 100k. Often times the plugs are badly seized in place.

As i mentioned, i am about to hit 60k on my truck which i bought with just over 41k. The dealer said they did not do the plugs when they bought it and their was no record of the previous owner doing them. So if when i do them in the next few weeks they still look to be in great shape then i am certainly not going to do them again till i hit 120k.

 

I installed Autolight platinum premium plugs. I don't remember the part number. I used antiseeze and plan my next change...never. Well, maybe someday if I still have the truck. Lol.

After 5,000+ miles I have had no issues. Half the old plugs pulled were rough. The other half looked new. The truck runs much better after the change due to replacing the worn out plugs.

 

Quick question for the Hemi owners: Do the Hemi's have 8 or 16 plugs? Dakota HO 4.7 uses 16 plugs, just wondered if the Hemi's do to.

 

my 2011 HEMI has 16plugs
I also do mine every 65K kilometers (40K miles) just because its cheap insurance to me.
I always use OEM copper plugs

 

Hemi's have 16 plugs, all the same type. The newer 4.7 that has 16 plugs uses 2 different type plugs.