Sparkplug choice

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Dwayne a Hutson

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What is everyone running for sparkplugs.. thinking of trying the NGK ruthenium plugs cost about the same as iradium plugs
 

jmd4100

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What is everyone running for sparkplugs.. thinking of trying the NGK ruthenium plugs cost about the same as iradium plugs
Stick with copper on the Hemi engines. You'll find on countless forums the amount of sheer agony people have gone through with all the different stuff

Sent from my SM-N975U1 using Tapatalk
 

McBroom

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The hemi was designed with copper spark plugs. That's what still works the best in them today too.

Blue Mule
 

U&A

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My OEM plugs are bosh Iridium’s. They are great plugs. Supposed to last a long time. I pulled them all at 30,000 to check the gap, clean and re-installed. Will replace them soon, probably this summer. So around 45,000 miles.

I called NGK a few times chatting with a nice gentleman there. He said there is nothing wrong with putting new iridium’s back in. The truck will run fine. The plugs will last a good while..... not 100,000 like the manufacturer says. No plug should stay in that long. Unless you are running laser plugs.[emoji16]

He said the hemi runs best on coppers. But you NEED to change coopers at 30,000 miles.

I have 16 coppers ready to go in[emoji1303][emoji41]


Sent while firmly grasping my redline lubed RAM [emoji231]
 

Pull Ya

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Take one out and then replace with the same kind. The change from cooper was sometime in the middle of the 2013 model year when they started to use iridium plugs.
Jay
 
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