NGK

[Bones84]

Has anyone used NGK G-Power spark plugs on a 03 5.7ltr before?

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[MikeT]

Don't have a Hemi, but most of the regualr posters here say that the Champion copper stockers run the best in the hemi. Sorry don't know the plug number.

Mike

 

[HemiLonestar]

Thought you settled this the other day: https://www.ramforum.com/threads/spark-plugs.132681/

 

[Bones84]

Thought you settled this the other day: https://www.ramforum.com/threads/spark-plugs.132681/

I ordered the Champions the other day after our messages. A guy I work with is trying to say NGKs are better. I've never had good luck with them on any domestic vehicle. They work great in my wife's Mini Cooper.

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[HemiLonestar]

I ordered the Champions the other day after our messages. A guy I work with is trying to say NGKs are better. I've never had good luck with them on any domestic vehicle. They work great in my wife's Mini Cooper.

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He may be correct depending on what vehicle he is referring to; in this particular instance not so much. NGK has been around a long time (in Japan for most of that time) but Champion has been here the whole time just a little longer. Now all that being said...NGK is OEM for 09+ eagle 5.7's LMAO.

 

[17CrewCab1500]

My wife has an 06 Durango with a 4.7L motor in it. I've always done the maintenance on it and always used the stock Champions but 2 times.

I used NGKs 2 years ago - and I kept getting check engine lights for random mis-fires. Replaced them with Champions and never had an issue.

Fast forward to this year, Autozone didn't have the Champions and I said, OK to the NGKs.. knowing I had issues last time.

Guess what came back up?! Check engine light. Random misfires. I had to order them through the web - but replaced them again with Champions.. and no more check engine light.

So weird. But from that, I won't use NGK anymore. Dodge engineered these motors on the heat range of the plugs and I think the NGKS might be a bit hotter.. I don't know..
Not like the old days - can't just replace with any old plug. Need a little research on which heat range you use.

 

[Bigdog9598]

Hi all, I have NGK's, in my 4.7, no engine issues, no CEL over the years I've used NGK's.

 

[Karlsweg]

I stick with stock champions and no problems either. I’ll stick with what the engineers designed for use.