duty life of oem spark plugs??

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Oct 27, 2015 | 11:46 AM

#16

shekaar

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From: Baltimore

Quote:

Originally Posted by letsgetthisdone

4 Evo X's here in Vegas have had the failure, 2 of them my friends cars that I personally saw. Luckily none of them lost the motor. But it made for a very poorly running car and a terrible drive home. It's cheap insurance for a spark plug that has relatively commonplace electrode porcelain failures...

I say relatively because I've never seen properly tuned cars break the porcelains like the Evo X does. Idk if it a QC issue with the plugs, or if something about the X motor breaks them.

The 10,000 mile rec isn't mine, it's English Racing's. So, I find it funny that you, and the other nay sayers, saying it's wrong...

To each their own. ER is one shop, feel free to take their advice.

Oct 27, 2015 | 08:47 PM

#17

►EvolutionX◄

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From: C_l_f_r_i_

Quote:

Originally Posted by JakeSoberman

No 10k is good because our cars have a issue where the tip breaks off and plays a game of pin ball in the motor. Pretty straight forward what happens after that.

You have lost your mind if you think iridium spark plugs should be changed every 10k Miles, I don't care what a shop has told you. If the porcelain insulator separated in a few cases, thats what it is, a few cases of issue plugs. Changing your plugs every 10k miles is just going to cycle through more plugs and increase your chance of getting a faulty plug. Run them for 60k per the FSM. If you are racing or what not I could see changing them more frequently, but iridium plugs are quite resilient.

Oct 27, 2015 | 09:13 PM

#18

JakeSoberman

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From: Rockville, Maryland

Quote:

Originally Posted by Ã¢Â–ÂºEvolutionXÃ¢Â—Â„

When Mitsubishi says change them every 60k that's expecting your car is stock. Changing them every 10k is a good idea it's preventative maintenance. I'd rather change them every 10k for $60 than pay $10,000 for a long block. Better safe than sorry in my opinion.

Oct 27, 2015 | 09:52 PM

#19

Robevo RS

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From: Park Ridge N.J.

i am running in mine the same plugs since i bought the car. I have something to similar as the ALS tune, and i have 30K miles in those plugs. Next oil change i will change plugs and brake pads. But no issue with a plugs what so ever.

Just saying

Oct 28, 2015 | 10:16 AM

#20

steinvb12

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From: Reading, PA

Quote:

Originally Posted by Robevo RS

Just saying

Same here. 2008...40k miles...stock frame turbo upgrade...a few tunes since 10k miles...some autocross and track use....

No issues. In fact I just got tuned this year, and my tuner didn't say there were required to be changed yet.

Oct 28, 2015 | 01:57 PM

#21

hoobastnk90

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From: Ofallon, MO

32 k here couple of track days and ive been on a cobb tuner since it was new with no issues so far yet either.

Oct 29, 2015 | 07:37 AM

#22

Ev0ikon

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From: 3rd Rock {from = sun}

I think those suggesting 10K changes are running copper replacements - not Iridium stock parts.
And if your tune keeps breaking the insulators I would NOT call it "proper".