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Unread 09-25-2009, 11:02 AM   #16
wickerham
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1993 ZJ 
 
Join Date: Jul 2009
Location: PA
Posts: 810
Quote:
Originally Posted by floridajpr View Post
I dont think that Champion makes the truck plugs anymore. I went to their web site and they are not listed and everyone I ask says they are not producing them anymore. I went on the web just a few weeks ago and finnally found 2 boxes(12) of the Champion truck plugs but the auto parts store said that they are going to be the last as they are not making them anymore.
get 'em while you can find 'em

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Unread 09-25-2009, 12:21 PM   #17
rugermack
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1995 ZJ 
 
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I ran the regular Botch Platinums in my 94' 4.0, from 20k-101k(81k total) got 20mpg and never had any problems. My current 95' 5.2, has had them since 85k and I now have 142k(57k total so far), still no problems. The point of the platinums is I never change them, that's were the saving $$ and time are saved. I also keep my trucks well tuned and maintained, that keeps me out from under the hood. I also have them in my wifes 03' 4.7 V8, 15k no problems, 19.5 average mpg.

And many other vehicles, no problems, too many too list. My father-in-law ran a set in his Ranger for 165k.
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Parts for sale d30 and d35 parts http://www.jeepforum.com/forum/f126/...-parts-1004499
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Unread 09-25-2009, 12:37 PM   #18
Double E
2000 Laredo V8
 
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2000 WJ 
 
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For electrical upgrades, you might look at the ground strap that connects under the jeep on the passenger side. It stretches around the exhaust and is a cheap metal woven strap. It's probably broken if you've not looked for it before. I added in a 2ga cable in its place I still have no idea what that woven strap is for though.

...and I keep the battery connections clean. The batt connectors are not very beefy from OEM and tend to be the culprit for some with electrical issues.

Also, anywhere I see a ground connection, since it has about 8-9 years on it, I've been removing them, cleaning them up and tightening them back down.
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Unread 09-25-2009, 08:46 PM   #19
MN_NATV
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1995 ZJ 
 
Join Date: Feb 2009
Location: New Castle, Delaware
Posts: 179
In my 95 5.2, I run Champion RC12YC's, stock plug. I'm not sure how sensitive the WJ's are, but I had a 2000 Neon that would throw a CEL if anything Platinum/Iridium/multiple ground electrode were in, so I just stuck with the RC9YC's, no need to spend more than 2 bucks a plug.
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Unread 09-25-2009, 09:26 PM   #20
ronsaun
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2003 WJ 
 
Join Date: May 2009
Location: wise river, montana, wise river, montana
Posts: 1,002
just had my jeep to the dealer for an"eco check" spoke directly to a well worn lifetime chrysler tech. i asked about plug type to improve fuel economy and he informed me of the "techeey stuff " which is over my head but the bottom line was that they were controlled by the vehicles electronic system and the factory plugs were the best period. life might me longer on some than others but performance is predetermined.
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Unread 09-25-2009, 09:31 PM   #21
ronsaun
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2003 WJ 
 
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Quote:
Originally Posted by rugermack View Post
I ran the regular Botch Platinums in my 94' 4.0, from 20k-101k(81k total) got 20mpg and never had any problems. My current 95' 5.2, has had them since 85k and I now have 142k(57k total so far), still no problems. The point of the platinums is I never change them, that's were the saving $$ and time are saved. I also keep my trucks well tuned and maintained, that keeps me out from under the hood. I also have them in my wifes 03' 4.7 V8, 15k no problems, 19.5 average mpg.

And many other vehicles, no problems, too many too list. My father-in-law ran a set in his Ranger for 165k.
19.5 average. combined city/highway? if so how in the h*** are you doing that? i am all about fuel economy and i am interest in your ideas as i have an 03 wj w/4.7. any input would be helpful.
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Unread 09-26-2009, 05:18 AM   #22
OH-ZJ-IO
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Join Date: Aug 2003
Location: Central OH
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Quote:
Originally Posted by melloyello View Post
best or most expensive thing you could find?
Yeah, that was a really relevant comment.

Everyone has favorites. Some are based on studies and claims and some are based on 'what dad always did' thoughts and some on experience, etc.

The bottom line is use something you feel good about. If you think is it an improvement or an advantage then it is. Get opinions and go with what sounds best to you. If you get a 'name' plug then quality isn't going to be an issue. The differences in spark plugs in a Jeep will be minor at best. MPG and performance will be affected more by driving habits than the different plug options. I'm not disagreeing with any opinions on plugs here. All of them are valid. Try some out and see what you like.

.
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Unread 09-26-2009, 10:50 AM   #23
96ZjBurner
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1996 XJ Cherokee 
 
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Quote:
Originally Posted by melloyello View Post
best or most expensive thing you could find?
best not the most expensive ive put these in all 3 of my cars and they work great every time. i have seen performance increases in some ways in each of the different vehicles. havent u ever heard of iridium and what it can do?
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Unread 09-26-2009, 04:18 PM   #24
4jeepers
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1999 WJ 
 
Join Date: Jul 2008
Location: Lancaster, CA USA
Posts: 375
Quote:
Originally Posted by Andymack View Post
Installing Champion Double Platinum spark plugs tomorrow.

What brands do you guys use? Are the Bosch 4-prong platinum plugs any good?? I've heard mixed reviews.


What other electrical system mods do you recommend??
I always use what the mfg. calls and never had any problems, ever. I think all those precious metal plugs are just snake oil to empty your pocket. I have used some of them a long time ago and never noticed any difference pro or con!
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