Stock Stinger Spark Plugs

[WRXtoStingerGT]

If you want to break it down that much then we'd have to start talking octane everyone is running too.

And if it's a lease you're turning in in 30 months and you're leaving it stock I wouldn't mess with anything either.

So there certainly are other factors to take into account on what everyone's personal plans are.

^

I don't get why people heavily modify their leases... like... if you plan to buy it out at the end then you were better off financing in the first place lmfao...

 

[SKStinger]

In the factory recommended service schedule attached, in the right side column, it shows at 96,000 km if you have iridium or platinum plugs.
I am coming up to 72,000 km or service #3. I had my OEM plugs regapped to 25 within the first 4,000 km from new and no issues. Running stock. Hope this helps.

Please don’t follow that schedule. That’s the Dealers schedule for all Kia models. The owners manual is entirely different and specific to the Stinger and is what I posted above.

Read more here

Service #3 (Canada)

Yes they said to use there oil only for the warranty, and if I would bring my oil there what tells me they won't keep it for themselves and put the bulk oil. I don't trust dealer's from my experience in the pass. I appreciate the info guys ;) and skstinger very true about the same grade of oil.

stingerforum.org

 

[Silverghost]

Please don’t follow that schedule. That’s the Dealers schedule for all Kia models. The owners manual is entirely different and specific to the Stinger and is what I posted above.

Read more here

Service #3 (Canada)

Yes they said to use there oil only for the warranty, and if I would bring my oil there what tells me they won't keep it for themselves and put the bulk oil. I don't trust dealer's from my experience in the pass. I appreciate the info guys ;) and skstinger very true about the same grade of oil.

stingerforum.org

Thx for the correction - much appreciated.

 

[Tommy G]

Stock spark plugs at 37k miles, nothing out of the ordinary, just a bit of heat discoloration, gap was .032"

 

[stinger541]

I thought only the 3.3 came with NGK? What does the 2.0 come with? I am about to replace and am not sure what to get. Was just going to stay stock.

 

[Tommy G]

I thought only the 3.3 came with NGK? What does the 2.0 come with? I am about to replace and am not sure what to get. Was just going to stay stock.

I have the 3.3 engine. You can check BMS website for spark plugs recommendations for the four cylinder engines.

 

[Joshholl]

My 2 cents......if you are staying stock, just leave them be..... I think most 3.3's use Denso for stock while the 2.0 uses NGK.....I have seen some forums where people don't like either stock plug but i have 100% faith in the NGK's....

Some may disagree but speaking from a jb4 user, if going above base map, (1), then stocks "should" be replaced. Lot of people believe if you don't get misfires, then re-gap should be fine. However, my main argument for replacing stock is the fact they are heat range 8. The higher boost levels of using jb4 maps higher than 1, calls for a step or two "colder" plug, i.e. heat range 9 or above(NGK/HKS numbers).....why wait for misfires and potential bad things happening under the hood????????????? have seen this up close and personal....

My 2 cents.....

Hey I’m reading this recently and I’m wondering if this applies to the 2.0 as well. I’ve read that stock heat range for these models is 6. This makes me think that the 2.0 and the 3.3 have different heat ranges. I have a jb4 on the way so I want to make sure I get plugs that are cold enough but not too cold.

 

[RKA123]

Hey I’m reading this recently and I’m wondering if this applies to the 2.0 as well. I’ve read that stock heat range for these models is 6. This makes me think that the 2.0 and the 3.3 have different heat ranges. I have a jb4 on the way so I want to make sure I get plugs that are cold enough but not too cold.

Volfy actually did some research on this and found a NGK plug appropriate for use with a JB4 with 2.0 and 2.5 engines. I've quoted his post below

2.0T and 2.5T use the exact same spark plugs. Most spark plug listings won't show the correct reference, because they are not officially a direct replacement for the stock spark plugs. ILKR9Q7G is one heat range hotter than stock spark plugs and is suitable for running with and without JB4. We have been running these NGKs in our two 2.0T engines for over a year now. I will be ordering a set for our new '23 2.5T, now that I just bought a JB4 for it.

They did clarify in a later post that it was one step colder, not hotter (got NGK and Denso heat ranges mixed up)

 

[stoopid]

I'm curious about the claimed longevity of NGK's laser iridium, and the service interval specified for the Stinger. Is there a reason (like excessive fouling?) for the lowish change interval? My experience and most of what I read online indicates the laser iridium are a 100,000 mile plug. Kia is having us toss them at less than half that interval?

I haven't pulled them myself, but from what I can find the 3.3TT uses NGK IR SILZFR7A 9G [these seem to be discontinued, fwiw].

With the spark plug swap not being as casual on the 3.3TT as it is on many other vehicles, doing this more often than necessary seems cruel.

 

[Joshholl]

Volfy actually did some research on this and found a NGK plug appropriate for use with a JB4 with 2.0 and 2.5 engines. I've quoted his post below


They did clarify in a later post that it was one step colder, not hotter (got NGK and Denso heat ranges mixed up)

Awesome this is perfect thanks, it’s a pain to find the correct info

 

[Volfy]

ILKR9Q7G has been running in our 2.0T G70 and Stinger for 2+yrs now. Runs flawlessly both road and track. Yes, it is one heat range colder, suitable for map 2 and higher, but vast majority of the time we stay map 0 for everyday driving with no drivability issues.