Both my SRT-10 Ram and my Viper both came with copper as well. I think it is just a standard DC issue.

I changed the Viper plugs, even though it only has 19K on it. I putcopper back in.

 

Ok, here a question...In the 300 C with the 5.7, or charger, how in the heck are you ever going to change the plugs? The Hemi is wedged verry tight betwean the fenders, so my question is, what plugs are in the hemi car engines, if thier not copper, than logic would say Plat. Plugs would work in the truck engines.

 

I recently put platinum in my hemi due to misfires on the oem coppers at 40k miles. A few thousand later she is still running strong as ever without misfires. We'll see what happens in the future.

 

anybody ever pay to have the plugs changed on a hemi? How much? Is it a do it yourself Job.

 

Looking at the 5.7 in the Ram, I know I can change the plugs, but the the last two on booth the left and right look tricky due to the lack of room, But with the right set of extensions, I don't see it as impossiable, question, What size are the spark plugs? ( socket )

 

I did mine myself and those back two on both sides sucked. I busted the knuckles a couple of times. There really isn't much room there. However, I did manage to do it.

 

I'm at 47000 and still running on the original plugs and I havent had any issues at all with misfires or mileage being any worse than it was when it was new. Of course I still have the original 20" tires front and rear with at least another 8-10,000 miles to go so maybe its just the way I drive?

 

Local stealership quoted me $400 to do ONLY the plugs. They claimed the plug cost $7.89 each. So I tackled it myself. It takes around 2 hours and minimal swearing to change all of them by yourself. Get a buddy and some beer and then it will go faster. Passenger side is easy, driver side the back two cylinders are tricky. Get a good swivel adapterand a couple short extentions and its doable. Also don't forget the anti-sieze.

 

It's a piece of cake to change these plugs.
It's just a little time consuming.
A good tip is to remove two front plugs just to get yourself warmed up and see how everything goes.
Then, while your still fresh, go for the hard plugs at the rear of both banks.
Being fresh it should be easier than if you've just removed the 12 or so before them plus, it's all downhill from when you have those tricky little suckers already out.
Al.

 

Out of all the post on this subject I didn’t see one person remind anyone to always check the spark plug gap to make sure it is at the correct setting. I have seen spark plugs out of speck by more than .020 so it’s always a good idea to make sure of the gap and that you have to correct spark plugs for your engine. This also reminds me of a post in the Neon forum that said I shouldn’t run Platinum plugs in my wife’s Neon. Now 16 months and 25,000 miles later they are still going strong and I’ve had no problems with them.