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slow&rusty 01-29-2024 03:33 AM

Spark Plug Experts: NGK Differences
 
Hey Guys - Trying to decipher between two NGK plugs.

What is or are the differences between:

1) DCPR9EIX

and

2) DR9EIX

On others words what do the "CP" letters reference ?

Thanks!
Yasin

David 01-29-2024 04:07 AM

The P is projected, not sure about the C. The NGK site or brochure is usually helpful.

The bigger question is what are you running a 9 heat range in? That's usually motorcycle territory.

LEAKYSEALS951 01-29-2024 04:11 AM

https://online.flippingbook.com/view/17923346/4/#zoom=true

slow&rusty 01-29-2024 04:33 AM

Thank you both!

David - the heat range "9" is what is recommended by the manufacturer.

Yasin


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