Tune up

[Maraudermike1]

I'm going to give my MM a tune up. Anybody have a good suggestion on what plugs to run? I've had some issues with platinum plugs and more expensive isn't always better. Anybody had good results with a particular set? Thanks guys!

[offroadking208]

I use Autolite XP-103 I believe. They're a degree colder than stock, but I have a tune. Good plugs, but a little on the expensive side. You may also want to try the search function. I believe we have had a few threads on sparkplugs. ;)

[musclemerc]

Do a search!

[ctrlraven]

Do you have any mods on your car; if so what are they?

[fastblackmerc]

Use the search function....

I was running NGK – TR6 which are 1 heat range colder. I'm currently running Autolite plugs because I got them free. Here are some plugs that will work in your MM.

Note 1: Platinum plugs are overkill and an unnecessary expense.

Note 2: Change your plugs once a year, plugs are cheap.

Note 3: Use a torque wrench when installing plugs.

Note 4: Use anti-seize on the plugs

Note 5: Use dielectric grease on the COP boots

Note 6: Change plugs ONLY when the engine is COLD


Spark Plugs:
Stock Heat range
Autolite –104
Autolite Double Platinum – APP104
Autolite Iridium / Xtreme Performance – XP104
Champion Copper Plus – RS12YC
Champion Platinum Power – 3401
Champion Double Platinum – 7963
Champion Iridium – 9204
Bosch – BSH7571
Bosch Platinum – BSH4205
Bosch Platinum+2 – BSH4305
Bosch Platinum+4 – BSH4458
NGK V Power – TR55
NGK G Power Platinum – TR55GP
NGK Laser Platinum – PTR5C-13
NGK Irdium IX – TR55IX
AC Delco – R42LTS6
AC Delco Platinum – 41810

Colder Heat range
Spark Plugs:
NGK – TR6 (+1 colder)

[Brian H]

:bows::bows:Champion RS12YC, RockAuto.com $25 for 12.:) sold only in six pacs(before you guys flame me),:banana2: delivered in 2-3 days!!:banana2:

[ImpalaSlayer]

dont waste your money on magic plugs, go with oem or one range colder if you have a few mods.

[burt ragio]

Do a search!

Those words are only to be used by Fastblackmerc.

[Maraudermike1]

Yea, I probably should have done a search. I'm usually good about that, I guess I just wasn't thinkin'. lol