What are the best spark plugs for the $$$ - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 18 (permalink) Old 10-13-2009, 10:38 AM Thread Starter
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What are the best spark plugs for the $$$

I am sure this has been asked a few thousand times lol

What type of plugs should I look for ( platinum, etc...)

and for the $$$, what is the best plugs to get? I am not too keen on spending 8-10 bucks on 1 plug when I have to buy 16!

I have always been a fan of NGK, these any good for the Hemi?


Thanks!
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post #2 of 18 (permalink) Old 10-13-2009, 12:55 PM
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I personally reccommend the Denso Iridium Power spark plugs. I put them in my car and it made a heck of a difference. They're $9 a plug but it's well worth it. Hope I was able to help.
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post #3 of 18 (permalink) Old 10-13-2009, 01:16 PM
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The Best Plug for the money is the regular Champion Copper Spark Plug. Platinum or Iridium Plugs will probably last longer but there's really no noticeable difference.
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post #4 of 18 (permalink) Old 10-13-2009, 02:40 PM
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Quote:
Originally Posted by CSand78 View Post
The Best Plug for the money is the regular Champion Copper Spark Plug. Platinum or Iridium Plugs will probably last longer but there's really no noticeable difference.
Agreed...Bosch Platinum+4 plugs (or anything north of $1.75) just seperate a fool from his money. No, I'm not "cheap" and, no, I don't burn "premium" gas in my 5.7L Hemi, I do what's necessary and keep my money in my pocket!

Eeeeeeeeeeeeeek! (sound of pennies screaming)

Long time listener, first time caller...2006 300C Magnesium Pearl Coat w/California Walnut, Deep Jade/Light Graystone Interior, SGII, Nav, HID, Adjustable Pedals and Goodyears (w/o PGII, U-Connect or Video options)
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post #5 of 18 (permalink) Old 10-13-2009, 08:32 PM
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Buy a plug based on 2 things: how long you keep them in there & how difficult it is to change them. Change plugs often & easy to do = copper plugs. Longer interval & difficult = platinum.
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post #6 of 18 (permalink) Old 10-13-2009, 08:50 PM
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RDP- I changed mine and I went with the champions RE14MCC4 that were in it to start with. They were 1.99 and to me anything else is just telling me you have more money than you know what to do with! (LOL) But you know what I mean
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post #7 of 18 (permalink) Old 10-13-2009, 08:58 PM
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Platinum

I went with Autolite Platinum AP5263

I got mine at rockauto.com. List price is $2.51 each, less a rebate of $1.25 each that Autolite is running until next month (you can get the rebate form on their website), bringing the net cost down to only $1.26 each....cheaper AND better than the lowly OEM Champion copper plugs.

I also applied a discount coupon code to shave a couple bucks off shipping, which was ultimately cheaper than buying at the local parts store and paying tax.

Some guys spew nonsense about hemi's not running well on platinum, iridium, etc. I can tell you from my experience (5.7L hemi) that there is absolutely no discernable difference in idle quality, performance, fuel consumption, etc. between the Autolite Platinum plugs and the Champion copper plugs. I chose these because they are higher quality and with the rebate, they cost less than the copper Champions.

The platinum plugs should last far beyond the 30K mile specified change interval, but I plan to change them every 30K miles anyway, just to satisfy the requiremenets of the lifetime powertrain warranty.
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post #8 of 18 (permalink) Old 10-13-2009, 09:38 PM
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Mine will get NGK 5306s soon. Now at 43K miles, so it's 'bout due.



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post #9 of 18 (permalink) Old 10-14-2009, 11:51 AM
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I used the NGK V-Power Copper's for the low price and reliable performance. I find these plugs seem to fire quicker than stock Champions in my Chrysler engines. Plus, NGK is the plug of choice by the SRT group.
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post #10 of 18 (permalink) Old 10-20-2009, 04:22 PM
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Quote:
Originally Posted by dhoolwerf View Post
I went with Autolite Platinum AP5263
...List price is $2.51 each, less a rebate of $1.25 each ...net cost down to only $1.26 each....cheaper AND better ...I also applied a discount coupon code to shave a couple bucks off shipping, which was ultimately cheaper than buying at the local parts store and paying tax.
Now there's a man that thinks with his wallet! Agreed that platinum is better that copper (because the electrodes do not erode over time) and if you can get'em cheaper than copper - go for it (I think I might, thank you very much)!

I would go as far to say that, as long as you use anti-seize (and maybe "break" the threads loose every 30K miles), the platinum plugs can stay in 60K, 90K or maybe even longer. I wonder what factors other than electrode erosion degrade spark plug performance over time?
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