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Do you have a favorite spark plug brand? #4498182
08/25/17 09:21 PM
08/25/17 09:21 PM
Joined: Mar 2008
Posts: 6,003
Michigan
ZZman Offline OP
ZZman  Offline OP
Joined: Mar 2008
Posts: 6,003
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?


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498193
08/25/17 09:36 PM
08/25/17 09:36 PM
Joined: Feb 2013
Posts: 10,887
Phoenix, AZ
Nick1994 Online content
Nick1994  Online Content
Joined: Feb 2013
Posts: 10,887
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.


2015 Hyundai Sonata 2.4L 86k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498195
08/25/17 09:38 PM
08/25/17 09:38 PM
Joined: May 2005
Posts: 772
USA
97prizm Offline
97prizm  Offline
Joined: May 2005
Posts: 772
USA
I had great results with bosch twin tip spark plugs but my sister had the tip fall out causing a misfire.


If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm
1984 Mazda RX-7 Spec 7
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498199
08/25/17 09:45 PM
08/25/17 09:45 PM
Joined: Nov 2016
Posts: 1,280
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,280
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.


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498203
08/25/17 09:47 PM
08/25/17 09:47 PM
Joined: Dec 2013
Posts: 2,293
Fort Worth, Texas
clinebarger Online content
clinebarger  Online Content
Joined: Dec 2013
Posts: 2,293
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.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498221
08/25/17 10:21 PM
08/25/17 10:21 PM
Joined: Mar 2008
Posts: 7,025
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,025
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.

Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498232
08/25/17 10:49 PM
08/25/17 10:49 PM
Joined: Dec 2009
Posts: 25,612
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,612
Regina, Saskatchewan, Canada
I've always tried to stick with whatever is OEM where possible. Sometimes, that's almost the only choice, even.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498233
08/25/17 10:51 PM
08/25/17 10:51 PM
Joined: Apr 2014
Posts: 1,863
Spring,Texas
Bud_One Offline
Bud_One  Offline
Joined: Apr 2014
Posts: 1,863
Spring,Texas
I prefer NGK for the majority of my spark plug purchases.
But have purchased AC Delco and Denso in the past.


16 Civic-QSUD 0W-20, XG7317
14 Civic-Idemitsu Zepro 0W-20, XG7317
05 Chevy 2500HD-QSUD 10W-30, XG3675
97 Accord Wagon-Havoline HM 10W-30, PH3593A
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498237
08/25/17 10:56 PM
08/25/17 10:56 PM
Joined: Nov 2013
Posts: 1,929
Chicago, IL
EdwardC Offline
EdwardC  Offline
Joined: Nov 2013
Posts: 1,929
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.

Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498241
08/25/17 11:02 PM
08/25/17 11:02 PM
Joined: Jul 2017
Posts: 43
USA
Krieg Offline
Krieg  Offline
Joined: Jul 2017
Posts: 43
USA
Denso for me, but it depends on the application...


N�l an luach an maith ar a dtugtar go dt� go dt�ann s� tirim
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498248
08/25/17 11:24 PM
08/25/17 11:24 PM
Joined: Dec 2006
Posts: 18,840
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,840
Dallas,Tx USA
NGK.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: Do you have a favorite spark plug brand? [Re: Nick1994] #4498262
08/25/17 11:46 PM
08/25/17 11:46 PM
Joined: Jun 2003
Posts: 17,494
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,494
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

Last edited by Chris142; 08/25/17 11:47 PM.

02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498265
08/25/17 11:53 PM
08/25/17 11:53 PM
Joined: Apr 2017
Posts: 103
NY
Kage860 Offline
Kage860  Offline
Joined: Apr 2017
Posts: 103
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.


2007 Jeep Liberty
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498273
08/26/17 12:19 AM
08/26/17 12:19 AM
Joined: Jul 2015
Posts: 4,629
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,629
Down Under
NGK


Castrol GTX Ultraclean 15W40 A3/B3 + Wesfil-Cooper Z154
Re: Do you have a favorite spark plug brand? [Re: ZZman] #4498283
08/26/17 12:45 AM
08/26/17 12:45 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Either ACDelco or NGK.

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