alright so i am looking into changing the plugs on my veh.//. it curently does not have platinum plugs. I am just curious if there is any issue with replacing the non platinum plugs with platinum maybe i will get a little better gas mileage since it will be a better and cleaner spark, Has anyone installed platinums in there 3.7l xk. help...
I just found out that the 3.7L engines have the NGK V power plugs. That does sound better than Champion, but they still are the low end plugs. Can anyone help me out on this situation.
I have heard that the dealers would like to stick with the OE plugs because the Jeep engines do get hotter and because the computer will not work with different plugs.
alright so i am looking into changing the plugs on my veh.//. it curently does not have platinum plugs. I am just curious if there is any issue with replacing the non platinum plugs with platinum maybe i will get a little better gas mileage since it will be a better and cleaner spark, Has anyone installed platinums in there 3.7l xk. help...
the plugs that are in the 3.7L are non platinum they are basic champion plugs. CRAP.. lol that is why i am interested in replaceing the plugs with a platinum or maybe NGK i was jsut curious if any one has done this and had problems or how the truck ran?
Get the Iridiums Part# ZFR6FIX-11 They are worth it cause they will last way longer than the coppers.
Iridium
Iridium is a precious metal that is 6 times harder and 8 times stronger than platinum, it has a 1,200(=F) higher melting point than platinum and conducts electricity better. This makes it possible to create the finest wire center electrode ever. Prior till now, platinum had been favored for long life or performance spark plugs due to its high melting point, also the technology did not exist to machine and bond iridium on a spark plug electrode(at least in a cost effective manner). Iridium industrial spark plugs have been around for years, but still sells for over a hundred dollars per plug. Just now is the technology available to effectively use iridium in a spark plug for automotive applications. The strength, hardness and high melting point of iridium allows NGK to manufacture their iridium ultra-fine wire center electrode to 0.7mm. One of the finest firing points in the industry! (Thus far there has been no problems reported regarding use of iridium plugs with nitrous oxide.)
I believe that all 3.7L engines have the V power NGK plugs. It has the part number on a sticker under the hood.
I would like to upgrade mine too instead of putting the cheap $2 plugs. I have heard that we should stick with the OE plugs because of the computer. I still have not got a clear answer on this issue out of calling 3 dealers.
I believe that all 3.7L engines have the V power NGK plugs. It has the part number on a sticker under the hood.
I would like to upgrade mine too instead of putting the cheap $2 plugs. I have heard that we should stick with the OE plugs because of the computer. I still have not got a clear answer on this issue out of calling 3 dealers.
Just bought the NGK Iridium IX and they were not pre-gapped checked the gaps and they ranged from .040 to .045 (I was told the GAP required was .044 by the parts dept). After some tense moments in gappin they are ready to put on. Hope I didn't break anything.
The part number if your curious is ZFR6FIX-11 / 6441
I can't believe that the NGK V power plugs look pretty bad at 32,000 miles. I would have gave the dealership better plugs to install than the same OE plugs, but I was not sure if I could screw up the computer by installing after market plugs.
I may be crazy but I thought a while back someone posted pics and a detailed description on changing plugs for the Commander. If someone knows can they direct me to the link. After seeing bob123's picture I am wondering if I should change the factory plugs and go for something better and sooner than 30,000 miles.
Yeah, 4.7 Commander did a thread on how to change the spark plugs on the 4.7L V8. I think the 3.7L should be the same. I ask him about what happened to the pictures.
Loving them, cant give you any scientific data but for the driving I do it seems to eat a tad less gas and has more power when cruising at 65 and need to pass. So a good investment so far in my opinion. the true test will be in 20k miles when I pull them to look at.
I pulled mine at 32k last week, and they were interesting. Some had a light brown burn pattern, but some had a green color to them. I put them back in after verifying the gap at 0.44, will take another look this week and get some pics.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Jeep Commander Forum
291.6K posts
43.9K members
Since 2005
A forum community dedicated to Jeep Commander owners and enthusiasts. Come join the discussion about lift kits, modifications, reviews, purchasing, troubleshooting, maintenance, and more!