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Spark Plugs

This is a discussion on Spark Plugs within the Kia Forte Turbo Maintenance forums, part of the Kia Forte Turbo Garage category; Originally Posted by drc69 I don't know. I never pulled them to look. I figure if I do that might as well replacement them. Is ...

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  1. #291
    Senior Member SXTurbo's Avatar
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    Quote Originally Posted by drc69 View Post
    I don't know. I never pulled them to look. I figure if I do that might as well replacement them.
    Is the NGK 9723 listed for your car?
    2016 SX Silver
    Build Date 4/16
    In Service 2/13/17

  2. #292
    Senior Member drc69's Avatar
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    Quote Originally Posted by SXTurbo View Post
    Is the NGK 9723 listed for your car?
    The only 2 I see listed is 91568 and 9723. So I thought go one step colder maybe?
    2014 Koup "SX" A/T Silver. Mods; Tint, 6th EE Delete Pipe, Sylvania SilverStar Head, Nokya Fog, Interior LEDs, Debadge (Forte) Trunk-75A Red Dogbone (one side only) Done.

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    Senior Member SXTurbo's Avatar
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    Quote Originally Posted by drc69 View Post
    The only 2 I see listed is 91568 and 9723. So I thought go one step colder maybe?
    The NGK plug site I looked at doesn't list the 9723 as compatible w your car. The 91568 is listed based on what your oe plugs are. https://www.ngksparkplugs.com/part-finder
    2016 SX Silver
    Build Date 4/16
    In Service 2/13/17

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  5. #294
    PLP
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    Quote Originally Posted by drc69 View Post
    So I thought go one step colder maybe?
    Are you experiencing any of the too hot spark plug symptoms? Such as drop in power in WOT or pinging/knocking like noise under load?
    If not, no need to.

    You see, the spark plug must be cold enough to not preignite, but must be hot enough to not foul (in other words - to clean itself).
    There is some balance between these two.
    If you drive your car hard quite often - then you could go with colder. Otherwise - you may end up with more problems, like rough idle, problem to start on cold, and overall poorer performance.
    If they are not expensive to you - worth a shot, I'd say.
    SXTurbo and drc69 like this.

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    Quote Originally Posted by PLP View Post
    Are you experiencing any of the too hot spark plug symptoms? Such as drop in power in WOT or pinging/knocking like noise under load?
    If not, no need to.

    You see, the spark plug must be cold enough to not preignite, but must be hot enough to not foul (in other words - to clean itself).
    There is some balance between these two.
    If you drive your car hard quite often - then you could go with colder. Otherwise - you may end up with more problems, like rough idle, problem to start on cold, and overall poorer performance.
    If they are not expensive to you - worth a shot, I'd say.
    Thank you for the info / help. Maybe I'll just wait until spring time. Still have other maintenance to do.
    Car is running pretty good, so I'll wait.
    Thanks
    2014 Koup "SX" A/T Silver. Mods; Tint, 6th EE Delete Pipe, Sylvania SilverStar Head, Nokya Fog, Interior LEDs, Debadge (Forte) Trunk-75A Red Dogbone (one side only) Done.

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    I was looking at the NGK 1422's and noticed alot of you guys in the forum getting 4 plugs for $40 (ebay/amazon) whereas as my local parts store is selling these for $21.00/each plug. We all know the saying "if it's too good to be true....it probably is". Anyone have a reputable seller or link that isn't selling fake NGK plugs?

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    Quote Originally Posted by Black SER View Post
    I was looking at the NGK 1422's and noticed alot of you guys in the forum getting 4 plugs for $40 (ebay/amazon) whereas as my local parts store is selling these for $21.00/each plug. We all know the saying "if it's too good to be true....it probably is". Anyone have a reputable seller or link that isn't selling fake NGK plugs?
    https://www.rockauto.com/en/parts/ng...park+plug,7212

    I got mine from Rockauto.
    Last edited by SXTurbo; 01-21-2020 at 05:49 PM.
    2016 SX Silver
    Build Date 4/16
    In Service 2/13/17

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    Quote Originally Posted by SXTurbo View Post
    Thank you! I'm going to try the 5702's before I try the 1422's. I was wondering why the VT spark plugs have different part numbers especially on the NGK website and the descriptions says for them to change out every 105,000 wheres as ours says we need to change out every 45,000 per OEM specifications..Name:  FireShot Capture 175 - Part Finder - NGK Spark Plugs - ngksparkplugs.com.png
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    Last edited by Black SER; 01-21-2020 at 06:32 PM.

  10. #299
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    I read too many stories of the Autolite plugs failing that it stopped me from trying them. The 105k mile interval is for the NA motors.
    2016 SX Silver
    Build Date 4/16
    In Service 2/13/17

  11. #300
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    Yes I read thru 30 pages on this thread but Forte5 OP/Mod says his are still going strong. I'm also from So. Calif and feel that with a proper warmup time there shouldn't be an issue with the 5702's. I'm not saying they wont fail, but I will try to keep a close eye on them.

    Concerning the part numbers on the NGK site....You mentioned NA but if you look at my picture it says 1.6T on the VT selection.

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