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#4498182 - 08/25/17 09:21 PM Do you have a favorite spark plug brand?
ZZman Offline


Registered: 03/17/08
Posts: 5850
Loc: Michigan
Is one manufacturer really that much better than another?
Are Iridium plugs really that much better than double platinum plugs if you don't plan on running them 100,000 miles?
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#4498193 - 08/25/17 09:36 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Nick1994 Online   content


Registered: 02/19/13
Posts: 10321
Loc: Phoenix, AZ
Spark plugs aren't a one size fits all.

IMO what's best is what it came with. Jeeps like Champion, Toyotas like Denso & NGK, GM's like AC Delco etc.
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#4498195 - 08/25/17 09:38 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
97prizm Offline


Registered: 05/25/05
Posts: 754
Loc: USA
I had great results with bosch twin tip spark plugs but my sister had the tip fall out causing a misfire.
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#4498199 - 08/25/17 09:45 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
HoosierJeeper Offline


Registered: 11/23/16
Posts: 1276
Loc: WI
I think whatever is OEM. The engineers got paid to figure it out, I didn't. My Liberty gets the OEM NGKs (nickel), LR3 gets the OEM NGK (Iridium), probably put whatever is OEM in the old Cherokee when I get around to it and I think the new Cherokee gets Iridium NGKs too.
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#4498203 - 08/25/17 09:47 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
clinebarger Online   content


Registered: 12/19/13
Posts: 1998
Loc: Fort Worth, Texas
NGK for the last 10 years or so, AC-Delco used to be my go-to plug but they stopped producing them In-House. The AC-Delco Iridium plugs are made by NGK & I will use those.

I don't really have a opinion on Platinum vs Iridium, But I have Iridiums in all my current gas powered vehicles, When I had Boosted high performance engines I ran NGK Copper V-Power plugs in the desired heat range.

If your going to change plugs every 30,000-50,000 miles....Copper plugs will serve you well in most applications.
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#4498221 - 08/25/17 10:21 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
slacktide_bitog Offline


Registered: 03/20/08
Posts: 6392
Loc: USA
My go-to brand is NGK. They make the best spark plugs smile

Denso is also good, and often at a better price than NGK. So they are a close second.

If the plugs are hard to get to, like most transverse V6 engines, iridium is a MUST! That way, you won't have to do it again for a long time happy

If the job is easy, I just stick to OE-spec plug, provided they are still easy to obtain at a good price. Otherwise, NGK or Denso. One example of this is the 00-04 Volvo S40/V40, which originally called for a Champion (platinum) RC8PYP, which they don't appear to make anymore. In that case, I'd go for NGK platinum (or possibly Champion iridium).

For cars that have spark plug wires, I like NGK because of the cool blue color, and because they are numbered for easy identification.

One more exception is the mid-00's Ford 3V 5.4L V8 with those stupid 2-piece spark plugs. For that engine, I'd use the iridium plugs Bosch just came out with. They are finally on sale now. Autozone has them for $8.99, but online-only. Free shipping, no minimum, plus 20% off with an online code, AND a $3 per plug rebate! The Bosch Iridiums are made in Germany. Part number 96322.

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#4498232 - 08/25/17 10:49 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Garak Offline


Registered: 12/05/09
Posts: 24779
Loc: Regina, Saskatchewan, Canada
I've always tried to stick with whatever is OEM where possible. Sometimes, that's almost the only choice, even.
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2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
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#4498233 - 08/25/17 10:51 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Bud_One Offline


Registered: 04/19/14
Posts: 1846
Loc: Spring,Texas
I prefer NGK for the majority of my spark plug purchases.
But have purchased AC Delco and Denso in the past.
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#4498237 - 08/25/17 10:56 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
EdwardC Offline


Registered: 11/14/13
Posts: 1890
Loc: Chicago, IL
I've had good luck with NGKs in Hondas. I've heard some cars are more particular with their spark plugs and have a certain brand they work best with. For my OPE, I swap out the original plug with NGK with no trouble.

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#4498241 - 08/25/17 11:02 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Krieg Offline


Registered: 07/23/17
Posts: 43
Loc: USA
Denso for me, but it depends on the application...
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#4498248 - 08/25/17 11:24 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
aquariuscsm Offline


Registered: 12/30/06
Posts: 18312
Loc: Dallas,Tx USA
NGK.
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#4498262 - 08/25/17 11:46 PM Re: Do you have a favorite spark plug brand? [Re: Nick1994]
Chris142 Offline


Registered: 06/05/03
Posts: 16978
Loc: Deplorable in apple valley, ca
Originally Posted By: Nick1994
Spark plugs aren't a one size fits all.

IMO what's best is what it came with. Jeeps like Champion, Toyotas like Denso & NGK, GM's like AC Delco etc.
have you tried the autolite double platinums in your jeep? Mine runs well on them


Edited by Chris142 (08/25/17 11:47 PM)
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#4498265 - 08/25/17 11:53 PM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Kage860 Offline


Registered: 04/17/17
Posts: 88
Loc: NY
It used to be that NGK/Denso only came on japanese cars and american cars had chamipon/autolite and euro cars had bosch. But now it seems like the American and european brands are specing denso and ngk. So, to me, that means those brands are the best.
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#4498273 - 08/26/17 12:19 AM Re: Do you have a favorite spark plug brand? [Re: ZZman]
SR5 Offline


Registered: 07/07/15
Posts: 4529
Loc: Down Under
NGK
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#4498283 - 08/26/17 12:45 AM Re: Do you have a favorite spark plug brand? [Re: ZZman]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Either ACDelco or NGK.

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