[TorDayAZ]

From the checker online system, these are the choices for the '06 Charger with a 5.7L Hemi:

Part No. 3570
Champion Spark Plug: Platinum Power; Price Is Per Spark Plug
Platinum Power: 3570 Type; Gap At .045; Per Car: 16
Warranty: Limited 3 Year*
$2.99

Part No. 570
Champion Copper Plus
Copper Plus: Re14mcc4 Type; Gap At .045; Oem Spark Plug; Per Car: 16
Warranty: Limited 2 Year*
$1.99

Part No. 7570
Champion Spark Plug: Double Platinum; Price Is Per Spark Plug
Double Platinum: 7570 Type; Gap At .045; Double Platinum Or Iridium Is Recommended For Waste Spark Ignition; Per Car: 16
Warranty: Limited 5 Year*
$6.59

Part No.
9403
Champion Iridium Spark Plug
Champion Iridium: 9403 Type; Gap At .045; Double Platinum Or Iridium Is Recommended For Waste Spark Ignition; Per Car: 16
Warranty: Limited 84 Month*
$6.99

I want to understand the difference between these. I got talked into special ordering the Iridium plugs. I'm waiting for them to come in. Should I cancel that order and just get the "570"s? I feel like I'm getting ripped off with the more expensive plugs. Would I ever notice any difference?

 

[torred1771]

ive been wondering the same thing here......

 

[Gabe]

Get the $2 plugs ..... 16 of them


That's what they come with from the factory .... no need for platinum in these cars ...

 

[mnunes]

^^^^ What he said.

 

[SupremeG]

The OEM's are just fine, you'll just be wasting money with the platinums.

 

[TorDayAZ]

This is interesting:
http://www.championsparkplugs.com/sparkplug411.asp?kw=Iridium&mfid=2

I guess what that means is, if you're sucking on the bottle, you want Iridium. For the rest of us, OEM is fine. I can buy that. That's kind of what I was suspecting.

Thank god for this forum. The power of information is amazing. It's a lot harder for the service departments and auto parts stores to take advantage of us, because now we ARE making informed decisions.

 

[4FishLimit]

In all fairness, their system does recommend the double platinum or iridium plugs, so the salesperson was probably just reading the screen.

It was my understanding that the use of platinum plugs was due to the higher voltages that todays ignition systems produce, copper plugs just don't have a long enough service interval for such conditions.

FWIW, plug info could have been found in your owner's manual

 

[LRBaLLa00]

Part No. 570
Champion Copper Plus
Copper Plus: Re14mcc4 Type; Gap At .045; Oem Spark Plug; Per Car: 16
Warranty: Limited 2 Year*
$1.99

Rockauto.com has them for $1.62 each... came out to $32.70 shipped.

 

[TorDayAZ]

FWIW, plug info could have been found in your owner's manual

Being totally lazy here and not getting the manual, because I don't feel like getting out of my chair at the moment - I don't recall the manual saying any specific spark plug part numbers, or whether to use copper, platinum or Iridium. I only recall it saying to change them at 30K.

Is 4FishLimit right, or is the manual vague?

 

[Alfa Charger]

Being totally lazy here and not getting the manual, because I don't feel like getting out of my chair at the moment - I don't recall the manual saying any specific spark plug part numbers, or whether to use copper, platinum or Iridium. I only recall it saying to change them at 30K.

Is 4FishLimit right, or is the manual vague?

The 30K change interval is due to the use of Copper Core Plugs in the 5.7L Engine. If you use the Double Plat. or Iridium, your change interval will become the same as the 6.1L Engine, 100K.

There is no advantage using the precious metal plugs other than the change interval.

Dave

 

[4FishLimit]

Being totally lazy here and not getting the manual, because I don't feel like getting out of my chair at the moment - I don't recall the manual saying any specific spark plug part numbers, or whether to use copper, platinum or Iridium. I only recall it saying to change them at 30K.

Is 4FishLimit right, or is the manual vague?

It's in the back with the rest of the recommended service parts list

 

[IrishChargerRT]

Just go to napa autoparts, i got 16 plugs for $27

 

[504HEMI]

Thanx I needed dat!:beerchug:

 

[RAINMANyeh]

Just get the Champion Copper Plus plugs. If you take your time, it should take you about 1 1/2 hours to do change all 16. Don't forget the antiseize (Dodge didn't use any from the factory) and the dielectric grease.

 

[johns2dev]

what does it mean when you have oil or some type of liquid on your spark plugs. I changed my spark plugs for the first time and two of them had oil or something on it. I got 90K miles on it and just now changed the plugs.

 

[Franchize48]

When I changed out mine I used the platinums but it is strictly preference I just made sure I stuck with champion. Replacing them was a breeze none were stubborn, check the gap though 2 of the 16 I bought were wrong!:beerchug:

 

[RAINMANyeh]

Good to hear you didn't have any trouble getting any of them out. I had three that were a biotch to get out as the factory did not use any antiseize on the plugs.

 

[Alfa Charger]

what does it mean when you have oil or some type of liquid on your spark plugs. I changed my spark plugs for the first time and two of them had oil or something on it. I got 90K miles on it and just now changed the plugs.

A Spark Plug Tube Seal has failed. Will probably need to replace the Valve Cover Gasket too.

Dave

 

[johns2dev]

A Spark Plug Tube Seal has failed. Will probably need to replace the Valve Cover Gasket too.

Dave

Is that something major that will mess up the engine or something. What is it that I need to replace and is it easy to do. Is there anywrite up on this procedure. thanks alot.

 

[Franchize48]

Is that something major that will mess up the engine or something. What is it that I need to replace and is it easy to do. Is there anywrite up on this procedure. thanks alot.

It needs to be replaced if this is what the problem is, your plugs can become fouled which in turn could cause a mis-fire in one or more of the cylinders. It isn't very hard to do and not to expensive either, but I am speaking on experiences with other vehicles not the HEMI.