What do these sparks plugs say?

[K20FA5]

These are out of my kids 2018 Kia Sportage with 88,000 miles on it. It has been burning about a quart of oil every 1,500 miles or so. That has slowed way down with the HPL EC cleaning to about 1/2 quart every 2,000 miles. It’s been running rough so I did a CRC DI spray cleaning and changed the plugs. It’s running much smoother now. I replaced these stock plugs with the NGK Iridium IX plugs.

The burning on the ceramic is what makes me question them?

 

[JohnnyG]

WAY too rich.
Bad injectors would be my first guess. If it doesn't have injectors then fix the mass air sensor or whatever is controlling the mixture. Including your kids foot.
Since they are all equally fouled with soot, I'd lean toward the MAF sensor or air filter/intake.

 

[paulo57509]

All my automotive applications and the Yamaha run NGK spark plugs; they all get that "burnt" look. Consider it normal.

Re: the firing end; I don't think you can read plugs that have had spray cleaning solvents run through the intake.

 

[2010Civic]

Seems like a lot of oil burning for a 2018.

 

[Dave1027]

Yeah, the black on the business end is likely due to the oil consumption, not a rich mixture. It's an oil burner.

 

[DriveHard]

Nothing...spark plugs can't talk

 

[earlyre]

Nothing...spark plugs can't talk

Spark me up?

 

[tyman]

They say, "pls halp, halp us....halp."

 

[DriveHard]

They say, "pls halp, halp us....halp."

Fifth Element!

 

[vw7674]

Nothing...spark plugs can't talk

Let's just say they're whispering that the breather /PCV system needs a look see. : )

 

[FZ1]

These are out of my kids 2018 Kia Sportage with 88,000 miles on it. It has been burning about a quart of oil every 1,500 miles or so. That has slowed way down with the HPL EC cleaning to about 1/2 quart every 2,000 miles. It’s been running rough so I did a CRC DI spray cleaning and changed the plugs. It’s running much smoother now. I replaced these stock plugs with the NGK Iridium IX plugs.

The burning on the ceramic is what makes me question them?

View attachment 114021View attachment 114022View attachment 114023

Burning oil on plugs. Ceramic running too hot?

 

[nthach]

The brown rings on the upper half is residue from corona discharge - while the ceramic is “sealed” to the plug shell, ceramic is porous. When an high-voltage spark is discharged, the air surrounding us is ionized and ozone rich.

Now, the tips, you have an oil burner. Time for a piston soak.