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Old 08-26-2008, 11:16 PM   #1
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Default Dynamite/McCoy Plug heat ranges.

I just noticed the descriptions of the plugs have changed. The MC-59 is described as having a hotter heat element. And the MC-8 is the medium range plug. Also I noticed Dynamite has a new(er) line up of plugs labeled as their Platinum series which are just labeled as hot, medium, cold.

So now I'm confused again, like always, as to what I should be using. Have the plugs in fact changed? Or are they still the same but labeled differently?

I have usually used the MC-59(which I understood to be medium), but now I'm confuzzled.


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Old 08-27-2008, 06:42 AM   #2
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MC-59 Hot
MC-8 med
MC-9 cold

Dynamite Platinum Series Plugs

R3 Hot
R4 Med
R5 Cold

We just switched from the MC-59s to the R3 plugs and really like them alot.
I have always used MC59s in every engine for 10+ years because I never found a plug I liked better until I tried the R3s, they are great!
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Old 08-27-2008, 07:06 AM   #3
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Originally Posted by gasser View Post
MC-59 Hot
MC-8 med
MC-9 cold

Dynamite Platinum Series Plugs

R3 Hot
R4 Med
R5 Cold
That's what I've always known them to be. Not sure what has changed.
Sean. Certified speed crazed mowron.
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