NGK Iridium spark plugs

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Feb 5, 2012 | 12:52 PM

#11

HD7585

Outstanding HDF Member

Joined: Nov 2006

Posts: 3,269

Likes: 12

From: NJ

I run em in a EVO........Two years now......I like em, Read somewhere they demand a lot less power from your coil to fire.......also they last longer in my opinion

Feb 5, 2012 | 02:42 PM

#12

poppavein

Road Master

Joined: Sep 2009

Posts: 932

Likes: 2

From: Pacific NorthWest Territory

I put them in my old RK with the idea that they would last longer and put less stress on the head threads from replacing spark plugs.

Turned out that some issue would come up and the spark plugs would be the first thing i would check. They would be fine, of course ...

Feb 6, 2012 | 05:58 AM

#13

Rodzilla6

Road Warrior

Joined: May 2010

Posts: 1,593

Likes: 11

From: Mass/NH

They run great! Denso makes some also.

Mar 24, 2012 | 07:18 AM

#14

Arnold Ziffel

Stage I

Joined: Apr 2009

Posts: 1

Likes: 0

2010 Softail Deluxe. No issues with them. Much better than HD plugs.

Mar 24, 2012 | 07:50 AM

#15

Tampa Fatboy

Seasoned HDF Member

Joined: Feb 2012

Posts: 13,456

Likes: 10,452

From: Sunshine State

Quote:

Originally Posted by Shredding rubber

I've never noticed a difference between those precious metal ended plugs and regular copper plugs. I tried em all in my mustang and nothing made any difference,so now I just stick to the cheap oem replacements and change them every year or 2. But that's just my experience with my vehicles. Your results may vary

+1 on that bro...same here. from what I understand those fancy plugs are for more mileage betweens service. I want the standard plug, oem.

Last edited by Tampa Fatboy; Mar 24, 2012 at 07:53 AM.

Mar 24, 2012 | 09:14 AM

#16

wadejesu

Road Captain

Joined: Nov 2006

Posts: 650

Likes: 29

From: Alabama

Plugs

I use them in my lawnmower, never had a problem.

Mar 24, 2012 | 09:56 AM

#17

Greabert

Cruiser

Joined: Jun 2010

Posts: 136

Likes: 0

From: Oak Harbor

What is the # of the NGK??

Mar 24, 2012 | 03:11 PM

#18

Willie D

Road Master

Joined: Feb 2006

Posts: 781

Likes: 3

From: 85.38W 42.13N USA

plugs

Quote:

Originally Posted by FroggyFatBoy

no need for the extra bling when the ignition system isn't designed for it. it may actually cause problems down the road with burning out coils..
i get on avg 80k miles out of a standard set of plugs in all my vehicles.

Agree, I don't believe I have ever changed a set since the EFI engine.

JMHO

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Nov 7, 2015 | 06:57 PM

#19

WildBill76

Tourer

Joined: Dec 2005

Posts: 426

Likes: 0

From:

They will not affect the ion sensing anti knock function. My Chevy car and truck came with irridium plugs. MY Harley, both Chevy vehicles all have Delphi Brains and ion sensing anti knock function.
None of my irridium plugged vehicles knock.