Surprised by Spark plugs - Page 2 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 04-25-2013, 11:48 AM   #31
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Quote:
Originally Posted by toolmantim View Post

not only are they gapped correctly but they have a cardboard sleeve to protect the electrode/threads during shipping.

Woohoo!!

OhSixTJ is online now   Quote Quick Reply
Old 04-25-2013, 11:57 AM   #32
Jeeper
 
jeepinmike's Avatar
 
Join Date: Sep 2011
Location: East Amherst NY
Posts: 218
Quote:
Originally Posted by Jerry Bransford View Post
I match your and raise you a



__________________
fuel in my veins, mountains on the brain......
06 Unlimited - 2.5 ish lift, 31" KM2, working on it.
BUFFALO NY JEEPERS
jeepinmike is offline   Quote Quick Reply
Old 04-25-2013, 12:19 PM   #33
Jeeper
 
Join Date: Oct 2011
Posts: 1,417
Quote:
Originally Posted by OhSixTJ View Post
Are the NGKs already gapped correctly?
Considering that a given spark plug is typically used in numerous applications which specify different gap settings, the entire concept of "correctly gapped in the box" is pretty moot.
tangofox007 is offline   Quote Quick Reply
Old 04-25-2013, 12:26 PM   #34
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Quote:
Originally Posted by tangofox007 View Post

Considering that a given spark plug is typically used in numerous applications which specify different gap settings, the entire concept of "correctly gapped in the box" is pretty moot.
Considering some spark plugs come with instructions on the box that say "do not adjust gap" or whatever it says is reason enough to ask
OhSixTJ is online now   Quote Quick Reply
Old 04-25-2013, 01:32 PM   #35
Jeeper
 
Join Date: Oct 2011
Posts: 1,417
Quote:
Originally Posted by OhSixTJ View Post
Considering some spark plugs come with instructions on the box that say "do not adjust gap" or whatever it says is reason enough to ask
That is certainly the case with certain plug types, such as iridium.. But the subject NGK copper plugs are not in that category.
tangofox007 is offline   Quote Quick Reply
Old 04-25-2013, 01:40 PM   #36
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Quote:
Originally Posted by tangofox007 View Post

That is certainly the case with certain plug types, such as iridium.. But the subject NGK copper plugs are not in that category.
Well I didn't know that.
OhSixTJ is online now   Quote Quick Reply
Old 04-25-2013, 01:42 PM   #37
Jeeper
 
jeepndon's Avatar
 
Join Date: Feb 2012
Location: Denver CO
Posts: 156
Quote:
Originally Posted by flflash View Post
I call BS, a sparkplug lights the combustion process and thats all if it's not doing that you have a noticeable misfire or fishbite. No sparkplug no matter the quality, cost or advertising will make the differance in MPG your saying.
There's something your missing or your miscalculating mileage.
No reason to call BS if your not getting the same Milage you should look in the Mirror its probably something your not doing right.
__________________
2004 Jeep Rubicon, 3.5 Rubicon Express lift & Front adjustable front & rear track bar, Currie Currentlync Heavy-Duty Tie rod System, Terraflex Monster Long arm, Terraflex disconnects, Bilstein 5100 Shocks, 33 x 10.5 BFG AT on Jeep Ravine rims, Warn Zeon 10K Winch, Warn Stubby Front bumper, Body Armor rear swingout.
jeepndon is offline   Quote Quick Reply
Old 04-25-2013, 01:47 PM   #38
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,076
Images: 2
I have to agree that a spark plug isn't going to improve mpg if the spark plug it replaced was the right model spark plug.

The way some less-than-honest (in my personal opinion) spark plug manufacturers like E3 can get away with claiming better mpg is that they compare their plugs to plugs that are worn out.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 04-25-2013, 02:07 PM   #39
Jeeper
 
dcarey's Avatar
 
Join Date: Feb 2012
Location: Thornton CO
Posts: 130
Quote:
Originally Posted by OhSixTJ View Post
What part number are these magic NGKs?
Well if you READ my post they are the NGK Vpower ZFR5N!! Im not saying there magic! all I was stating is that with the Champion RC12ECC model I got much worse milage than with the NGK plugs thats why i was suprised!! hense the title of the post. The Champion plugs where only in the jeep for 2000mi before I was sick of the milage i was getting and changed them out so there was no wear on them at all and the gap was still .035.
dcarey is offline   Quote Quick Reply
Old 04-25-2013, 02:23 PM   #40
Jeeper
 
Enemy's Avatar
 
Join Date: Jul 2012
Location: Abq NM
Posts: 392
The only way I think that different plugs could raise your MPG's is if you got a bad plug. I run NGk TR6's in my truck and a few months ago I did a plug change, after that the truck ran like crap and got horrible mpgs. After a week of troubleshooting everything from pumps to injectors I swapped the old set of plugs back in (TR6's) and it ran fine. The only thing I could figure out was that 3 out of the 8 plugs had a small crack in the porcelain.
__________________
Joe
00' F150
02' TJ X
03' Lightning
12' MIni Countryman
Enemy is offline   Quote Quick Reply
Old 04-25-2013, 02:29 PM   #41
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Quote:
Originally Posted by dcarey View Post

Well if you READ my post they are the NGK Vpower ZFR5N!! Im not saying there magic! all I was stating is that with the Champion RC12ECC model I got much worse milage than with the NGK plugs thats why i was suprised!! hense the title of the post. The Champion plugs where only in the jeep for 2000mi before I was sick of the milage i was getting and changed them out so there was no wear on them at all and the gap was still .030.
Calm down cowboy. Put your six-shooter back in your pants and don't Plaxico yourself. When I said "magic", it was a joke. I'm all for trying things just to see if it works. And I'll read what I want to, if it means skipping your posts than so be it
OhSixTJ is online now   Quote Quick Reply
Old 04-25-2013, 02:37 PM   #42
Jeeper
 
dcarey's Avatar
 
Join Date: Feb 2012
Location: Thornton CO
Posts: 130
Quote:
Originally Posted by Enemy View Post
The only way I think that different plugs could raise your MPG's is if you got a bad plug. I run NGk TR6's in my truck and a few months ago I did a plug change, after that the truck ran like crap and got horrible mpgs. After a week of troubleshooting everything from pumps to injectors I swapped the old set of plugs back in (TR6's) and it ran fine. The only thing I could figure out was that 3 out of the 8 plugs had a small crack in the porcelain.
Thank you thats all i was saying. I think I got some defective plugs and was suprised about the differance I was getting between one set and another model.
dcarey is offline   Quote Quick Reply
Old 04-25-2013, 02:41 PM   #43
Jeeper
 
dcarey's Avatar
 
Join Date: Feb 2012
Location: Thornton CO
Posts: 130
Quote:
Originally Posted by OhSixTJ View Post
Calm down cowboy. Put your six-shooter back in your pants and don't Plaxico yourself. When I said "magic", it was a joke. I'm all for trying things just to see if it works. And I'll read what I want to, if it means skipping your posts than so be it
No problem jst tired when others say my post is BS or I don't know how to calculate MPG or well your speedo is off these are things I check and double check before I post because I know I will get many people not beliving my claims on MPG because the best they ever get is 13 MPG.

My apploigies for shooting off the way I did thanks for the correction
dcarey is offline   Quote Quick Reply
Old 04-25-2013, 02:50 PM   #44
President, ThumbJeeps

WF Supporting Member
 
sevenservices's Avatar
 
Join Date: Sep 2009
Location: Mid-Michigan/Thumb
Posts: 3,938
Im wondering if one of the champions was fouled out of the box? When you pulled 'em all out after 2,000 miles did one plug by any chance still look new?
__________________
-Chris
President, ThumbJeeps
CB Callsign "AirForce One"


1994 Wrangler YJ I6 4.0 H/O Auto 3 spd. 4" RC (33x12.5) (15x8) 3:54 Gears
sevenservices is offline   Quote Quick Reply
Old 04-25-2013, 03:10 PM   #45
Jeeper
 
WVU Mountainman's Avatar
 
Join Date: Jun 2012
Posts: 837
Quote:
Originally Posted by dcarey View Post
I have a 2004 Wrangler Sport it has 115k on her at 113k I changed the original spark plugs with New Champion RC12ECC I gaped them to .035 I noticed an immediate drop in power and BIG fuel economy drop I went from getting 19MPG daily driving to work to 14-15MPG.

After about 2000 mi of this I decided last night to change the plugs back to the stock NGK Vpower ZFR5N well the difference is AMAZING I went skiing this morning and on the trip up the mountain I had much more power when cruising on the highway in 5th gear The trip was 175 mile round trip and I did it on a half a tank through the mountains !

I never knew spark plugs could cause so much difference in both power and MPG.
I'm glad you posted this. I encountered the exact same problem with the exact same Plugs. As soon as I replaced it ran crummy. I was searching for other problems because all of the good reviews on the champions.

I ran it for 5,000 miles and could not take it any longer. I switched to NGK V power and idle instantly smoothed out, more MPG, and overall ran better. I set the gap to .035 on the champions and when I pulled them every one was wider than .065. I've never seen anything like it. I think I must have got a bad batch as well.

Not bashing Champion, just impressed with the NGK's
WVU Mountainman is offline   Quote Quick Reply
Old 04-25-2013, 06:48 PM   #46
Jeeper
 
Join Date: Dec 2012
Posts: 2,631
Quote:
Originally Posted by WVU Mountainman View Post
I'm glad you posted this. I encountered the exact same problem with the exact same Plugs. As soon as I replaced it ran crummy. I was searching for other problems because all of the good reviews on the champions.

I ran it for 5,000 miles and could not take it any longer. I switched to NGK V power and idle instantly smoothed out, more MPG, and overall ran better. I set the gap to .035 on the champions and when I pulled them every one was wider than .065. I've never seen anything like it. I think I must have got a bad batch as well.

Not bashing Champion, just impressed with the NGK's
X2 As well. I decided to change out my plugs to NGK ZFR5N V-Power from my Champions, gapped them at .035 also. The change was noticeable because when we checked the gap on the champ's, they too were way off as well. Now I don't know if this is a problem with Champion's OR my mechanic failed to do the proper gap? I can't answer that question but all I'm saying at this point is thanking the OP for starting this thread and get ideas flowing...
RevCo666 is offline   Quote Quick Reply
Old 04-25-2013, 09:13 PM   #47
Jeeper
 
Bjeep77's Avatar
 
Join Date: Apr 2013
Location: Raleigh NC
Posts: 50
We should feel lucky. The plugs for the Jeep are cheap. In my aircraft shop, we are battling severe QC issues with the Champion plugs, especially the iridium plugs. At $92 each and each engine requiring 12, spending less than a $20 bill for a new set of good NGK plugs for the Jeep is cheap. I check, clean and test them every 3rd oil change on all my vehicles and change them every 20-30K. Simple insurance to make sure they are running correctly and to keep the fuel economy as high as possible by eliminating problems from such an inexpensive part.
Bjeep77 is offline   Quote Quick Reply
Old 04-26-2013, 01:27 AM   #48
Jeeper
 
flflash's Avatar
 
Join Date: Mar 2013
Posts: 519
Quote:
Originally Posted by dcarey View Post
No problem jst tired when others say my post is BS or I don't know how to calculate MPG or well your speedo is off these are things I check and double check before I post because I know I will get many people not beliving my claims on MPG because the best they ever get is 13 MPG.

My apploigies for shooting off the way I did thanks for the correction
I'm telling you I've never ever pulled Good Plugs out and installed another set of Good plugs and saw a MPG gain anywhere near what your claiming it just dosent happen. You had a bad plug, made a MPG miscalculation or inadvertently fixed another problem.

Perhaps the BS comment was to strong for you but I've been an automotive tech for 30 years, worked at a Jeep dealership for many years I now work for Chevrolet am a ASE Master Technician, General Motors Master Technician, GM Certified Corvette Technician I am 100% Trained in every catagory of Automotive repair Hell I'm even 100% certified for Volts!....I may be short and gruff but I know my shit! In 30 years you see alot and like I've said I've never ever seen a gain like that from Just changing Good plugs for Good plugs.

BTW Both my Jeep TJ's get get 15-16 Mpg on the road one on 33's with 4.11's gears which is my DD and one on 35's with 4.88's neither anywhere close to stock.
flflash is offline   Quote Quick Reply
Old 04-26-2013, 05:34 AM   #49
Jeeper

WF Supporting Member
 
jp2611's Avatar
 
Join Date: Aug 2010
Location: Fort Wayne IN
Posts: 5,704
FWIW my '04 Sport when new and stock got 18-20 around town, and 20+ on the highway.......now almost 10 years later and heavier bumpers, different tires, wheels, SL, BL, different exhaust, and different intake (I don't care I like it) I get 15-16mpg around town 18-19 on the highway @55mph and Interstate over 70mph gives me 15mpg.

I am curious about the plugs now though as I have never put the NGK back in the Jeep since the first time I changed them.
jp2611 is offline   Quote Quick Reply
Old 04-26-2013, 08:41 AM   #50
Jeeper
 
blackrublj's Avatar
 
Join Date: Feb 2013
Posts: 65
Quote:
Originally Posted by sevenservices View Post
Im wondering if one of the champions was fouled out of the box? When you pulled 'em all out after 2,000 miles did one plug by any chance still look new?
I use the Bosch iridium plugs and my jeep runs great good plugs
blackrublj is offline   Quote Quick Reply
Old 04-26-2013, 09:54 AM   #51
Jeeper
 
jgorm's Avatar
 
Join Date: May 2010
Location: San Diego
Posts: 1,841
It always puzzles me why they would want a .35 gap.... unless jeep built the engine for boost. Low compression, small gap, hmmm. This engine should run with a 50 gap.
__________________
my 06 LJ rubicon
2.5" SL, 1" BL, DIY highline, 35s with double beadlocks.
jgorm is offline   Quote Quick Reply
Old 05-02-2013, 05:26 PM   #52
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Well I jut pulled the 7034s that I put in a while back and they had a .50 gap. Yikes! I should have checked them before I threw them in.

And as for curing my curiosity, I threw some new NGKs in. Just for shits n grins...
OhSixTJ is online now   Quote Quick Reply
Old 05-03-2013, 02:50 PM   #53
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,090
Well after going back to stock NGKs, this fluttering noise I had during acceleration is gone. The jeep idles way smoother, and it feels like it has a tad more power than it did with the previous plugs. Weird.
OhSixTJ is online now   Quote Quick Reply
Old 05-03-2013, 02:55 PM   #54
Jeeper
 
Join Date: Dec 2012
Posts: 2,631
Quote:
Originally Posted by OhSixTJ View Post
Well after going back to stock NGKs, this fluttering noise I had during acceleration is gone. The jeep idles way smoother, and it feels like it has a tad more power than it did with the previous plugs. Weird.
Now would be a good time to keep a close eye on your mpg.
RevCo666 is offline   Quote Quick Reply
Old 05-03-2013, 03:03 PM   #55
Jeeper
 
Join Date: Mar 2013
Posts: 160
Images: 1
Quote:
Originally Posted by dcarey View Post
Well just filled up and I got 325 miles for the tank filled up with 16 gallons for 20.3 MPG up from 14 MPG with the champion plugs. I think it must have been a bad plug I can't believe that major difference just changing brands.
Isnt it a 19 gallon tank to fill up????
wranglerbob1 is offline   Quote Quick Reply
Old 05-03-2013, 03:19 PM   #56
Jeeper
 
Join Date: Dec 2012
Posts: 2,631
Quote:
Originally Posted by wranglerbob1 View Post
Isnt it a 19 gallon tank to fill up????
Or 72 liters
RevCo666 is offline   Quote Quick Reply
Old 05-03-2013, 03:52 PM   #57
Jeeper
 
Rubi513's Avatar
 
Join Date: Apr 2013
Location: Conroe, Texas
Posts: 1,577
Quote:
Originally Posted by wranglerbob1 View Post
Isnt it a 19 gallon tank to fill up????
He didn't say it was empty. My TJ has a 19 gallon tank, but when it shows empty I can only squeeze 15-16 gallons in it.
__________________
"I have not failed. I've just found 10,000 ways that won't work."
Rubi513 is offline   Quote Quick Reply
Old 05-03-2013, 04:27 PM   #58
Jeeper
 
Join Date: Apr 2013
Posts: 216
Quote:
Originally Posted by Rubi513 View Post
He didn't say it was empty. My TJ has a 19 gallon tank, but when it shows empty I can only squeeze 15-16 gallons in it.
Same here. Actually more like 14. This gas gauge sucks
Huelsmma is offline   Quote Quick Reply
Old 05-04-2013, 03:21 PM   #59
Jeeper
 
Join Date: Mar 2013
Posts: 160
Images: 1
Yes but if you are going to figure MPG then empty tank, fill with 19 not 16 gallons and do the math. If I throw 16 in and not know what is in the tank then how can I give a accurate MPH??????? Going by the pump turning off???
If you are off by 3gallons then it can be anywhere from 30 to 60MPg..
wranglerbob1 is offline   Quote Quick Reply
Old 05-04-2013, 03:50 PM   #60
Jeeper
 
MLaborde's Avatar
 
Join Date: Feb 2011
Location: East Texas
Posts: 427
Quote:
Originally Posted by dcarey View Post
I get that alot I live in Denver and use 85 octane gas. I have 33"X10.5 BFG/AT and 4.10 gears. I drive back and forth to work on the highway @ 65 MPH and get between 18.5 and 20 MPG all the time. I use cruise a lot Shift early I never go over 2k RPM when accelerating and am in 5th gear before 40 MPH. I do have a Banks CAI and Throttle body spacer.

I hear many people with the 4.0L call me a liar and say it is impossible to get 20 MPG but I do it all the time. I've checked the tripometer and speedometer and both are very accurate. My friend a cop has Lasered me at 60 MPH on cruise and was dead on.
Stock speedometer gear?

MLaborde is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:39 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC