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Pugs
Dodge Dakota
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4/27/2004
00:34:07
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 Subject: NGK Platinum VS BOSCH Platinum
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I'm getting new plugs put in my Dakota. It's a 2002 Sport with the 4.7 V8. I've read many posts and I really only want to know what works well with a pure stock 4.7 as it's obviously very different from the other V8's (SOHC vs. OHV). I'm assuming the SOHC's (with the higher RPM power range) will react different to some plugs then the 5.2 or the 5.9. I've been told that they come out of the factory with Platinum Champions but have read posts that platninum plugs will destroy the coils on the plugs. Is this true...why would they put platinum in at the factory then?
So I'm debating whether to buy Bosch Platinums (the regular ones, not the +4's) vs. the NGK G-Power Platinums? I've heard mixed reviews about the Bosch, but haven't heard much at all about NGK.
I'm not interested in putting in Autolites, don't wanna change them again next year.
So input on NGK G-power platinum or BOSCH Platinum would be greatly appreciated.
I'm getting the plugs changed tomm. morning so any speedy reply would be great!!
Thanks
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bosch
Dodge Dakota
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4/27/2004
00:46:36
| RE: NGK Platinum VS BOSCH Platinum
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The bosch platinums run great in my truck. i have to change them every year, but maybe because I drive 80-90k miles a year!
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Levey
Dodge Dakota
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4/27/2004
23:24:55
| RE: NGK Platinum VS BOSCH Platinum
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Good lord thats alot of miles...you must go thru a vehicle every few years unless you do some major work and upkeep on that vehicle.
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bosch
Dodge Dakota
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4/27/2004
23:32:31
| RE: NGK Platinum VS BOSCH Platinum
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I keep them for 180'000- 220'000 miles! Been through a 93, 94, 97, 98' 2000, and 2002 dakota. All hit at least 175'000 before unloading them. I bought the 93, 97, and 2002 new, but the others were slightly used! I take very good care of them, try to change oil every 2500, but it usually happens at 3000. Only had a major problem with the 97 the rear end locked up at 130'000. None of the others ever gave me any major problems. All were v8's 93-98 were 5.2, 2000 was 4.7, and 02 was a 5.9 QC. I miss the 98 it was my favorite!
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Dr. D
Dodge Dakota
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4/28/2004
09:33:42
| RE: NGK Platinum VS BOSCH Platinum
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I run the BOSCH PLATINUM due to the fact that they will last the
longest (I ran a set for 0ver 150,000 with no problems).
AMSOIL now sells the BOSCH Products through their catalog and
since I use their oil I just order them through AMSOIL.
Dr. D
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BEMOORE
Dodge Dakota
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4/28/2004
11:40:36
| RE: NGK Platinum VS BOSCH Platinum
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when i worked at wallmart we had a 99 jeep chereke with the 4.0 in line 6 that came in and had 490,000 miles on it with no real proplems they guy was an escort for trucks that cared wide loads
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BigBlueQC
GenIII
4/28/2004
12:57:11
| RE: NGK Platinum VS BOSCH Platinum
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I have the same year and engine as PUGS. They do not come with platinum plugs. Maybe Jeeps do, but I don't think so. Have used the OEM champions in mine, change every 30000, no problems. Just installed 3rd set as I am about to turn 100,000 miles
2002 QC 4x4 Sport Plus, 4.7L, auto, Patriot Blue, Tire & Handling group,
Heavy Duty Service group, Leer cap w/out windows, Mopar Step bars and roof rack, Rhino liner in bed and on step bars, Pace Edwards Power Tailgate lock
3.55 rear, 4-wheel anti-lock brakes, all possible fluids are AMSOIL
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jb
Dodge Dakota
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4/28/2004
13:04:14
| RE: NGK Platinum VS BOSCH Platinum
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I put the bosch ones in my 02 4.7 last year. They ran good but after 20k im was getting a misfire in the #1 cyl and had to change them again.
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Pugs
Dodge Dakota
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4/28/2004
14:15:30
| RE: NGK Platinum VS BOSCH Platinum
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I've since called the dealer, and no, the '02 4.7's don't come with platinum...just copper core Champions. So I've deciced not to go with platinum just in case they do wreck the coils down the road. I've put in the Autolite 5224's (as I have a stock thermostat). No real apparent performance difference but not any worse. I guess plugs are just plugs.
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Yhunderchild
Dodge Dakota
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4/29/2004
12:43:27
| RE: NGK Platinum VS BOSCH Platinum
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I have heard that the platinum plugs run too cold for the 4.7 engine. It affects something with the emmissions.
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WipLash
R/T
4/29/2004
13:29:57
| RE: NGK Platinum VS BOSCH Platinum
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I like the Bosh because they perform better, but they are only good for about a year or 25K. It sounds like you drive more than 25K per year. I've never been able to get more than 25K out of a set of Bosh Platinums. After about 10-20K the engine starts idling rough and gas mileage drops off. After 20K at least one out of every set I've pulled out has had the tiny platinum tip inside the ceramic missing. I've taken them back to AutoZone in the past to exchange them. They quit allowing that. Originally the plugs were guarantied to last 100,000 miles (limited warranty). They don't stand behind this anymore. I have ran these in several engines (chevy, ford, Mitsu, and Dodge) and the same thing happened to all of them. An engine builder I was using to machine my racing engines for the dirt track told me that he wouldn't put a Bosch Platinum in his lawn mower and that he uses NGK. I switched to NGK's that day and I have had no more plug problems. That was 7 years ago. From 1993-1997 I averaged a set of Bosh Platinums every 4-6 months between my truck(s) and my race car. Since I switched to NGK, the only time I've replaced the plugs was when I replaced the factory originals.
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Pittdawg
Dodge Dakota
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4/29/2004
15:16:40
| RE: NGK Platinum VS BOSCH Platinum
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How many miles the stock plugs generally good for?
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Dr. D
Dodge Dakota
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4/29/2004
21:13:56
| RE: NGK Platinum VS BOSCH Platinum
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about 20,000 miles.
Dr. D
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damn
Dodge Dakota
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4/30/2004
01:00:51
| RE: NGK Platinum VS BOSCH Platinum
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Where did the platinum tip go? Did it scratch the piss outta the cylinder walls?
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puttputt
Dodge Dakota
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4/30/2004
01:28:31
| RE: NGK Platinum VS BOSCH Platinum
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wip,
so you are happy with the bosch in your r/t....?...i might try them out...i have 10,500 miles on my 03 r/t now and it seems to idle a little lumpy(rough) and after reading many many posts it seems like maybe the plugs might smooth that out...any more thoughts on this...?
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Matt4.4CC
Dodge Dakota
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4/30/2004
19:17:00
| RE: NGK Platinum VS BOSCH Platinum
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Platinum is silliness. Two reasons: First, ignition systems in modern cars and trucks have enough energy to light New York. That alone will keep plugs clean. Second, copper is a much better conductor of electricity than platinum. Nascar, FIA(Formula 1), IRL and CART engine builders use nothing but copper. Oh yeah, I haven't seen any drag racer put platinum plugs in anything yet, either. Snake oil.
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Matt4.7CC
Dodge Dakota
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4/30/2004
19:19:37
| RE: NGK Platinum VS BOSCH Platinum
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BTW, I have a 1995 Mazda Protege with 121,000 miles on original non-platinum spark plugs. Still starts immediately, and runs fine.
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PLL
Dodge Dakota
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4/30/2004
19:23:26
|  RE: NGK Platinum VS BOSCH Platinum
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Heh...Matt, I too "had" a 95 Mazda Protege with original plugs (86,000 miles) that started and ran smooth. Too bad I crashed it a month ago. Wait, it's not too bad...that's why I now have a new Dakota ;-)
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Matt4.7CC
Dodge Dakota
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4/30/2004
19:29:41
| RE: NGK Platinum VS BOSCH Platinum
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Hey PLL,
Sorry about your Protege! Mine is sure a neat little car. It's an LX with an automatic. All I've done is put wheels and tires on on it(195/50-15's from the stock 175/70/13's). It gets 35mpg going 75 with the AC on. My Dakota hasn't seen over 19.5 yet:)
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01Motorsport
Dodge Dakota
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4/30/2004
23:05:58
|  RE: NGK Platinum VS BOSCH Platinum
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I ran Bosch Platinum +2, then +4 on my '92 5.2 Dak that ultimately had 217K miles. I changed the plugs every 50K. The truck would cold start great in any weather. I never "lost" a single electrode tip. I ran the OEM and one replacement set of Champions in my '01 4.7 before installing 4418 +4's over 7K ago. The most noticeable difference with the 4.7 is the smooth idle now. Mpg is about 1/2 mile/gallon better. Unless something happens drastically, I'll keep 'em in. The "platinum is bad for coils" theory hoists the B.S. flag in short order.
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kev
Dodge Dakota
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4/30/2004
23:38:31
| RE: NGK Platinum VS BOSCH Platinum
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bosch makes superb products. i use and see them everyday however, i am running autolite's because i am doing a t-stat and an msd or accel ignition for which, platinum plugs are not recommended. i change bosch platinum plugs on cars at work every 100k, and they are always running good and look great when they come out. the cars i work on put those plugs in stock so the ignition sys. may be different but, i only change the plugs because it is recommended, not out of necessity. the champions work fine and the autolites too. put the plug in you feel comfortable with and can afford. get ones that fit your current and future applications.
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