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Discussion Starter #1 (Edited)
I would have expected our owner's manuals to advise replacement every 50,000 or maybe 60,000 miles.

This thread prompted my 2 cents
https://www.kiasoulforums.com/145-soul-problems-gen-2/114365-another-burning-oil-thread.html

Kia has an inspection proceedure, per these links

Kia Soul: Emission control system - Maintenance - Kia Soul 2014-2019 PS Owner Manual

Kia Soul: Inspection - Crankcase Emission Control System - Emission Control System - Kia Soul 2014-2019 PS Service Manual

Kia Soul: Schematic Diagram - Crankcase Emission Control System - Emission Control System - Kia Soul 2014-2019 PS Service Manual

Kia Soul: Positive Crankcase Ventilation (PCV) Valve Operation Principle - Crankcase Emission Control System - Emission Control System - Kia Soul 2014-2019 PS Service Manual

Kia Soul: Positive Crankcase Ventilation (PCV) Valve Removal - Crankcase Emission Control System - Emission Control System - Kia Soul 2014-2019 PS Service Manual

Kia Soul: Positive Crankcase Ventilation (PCV) Valve Inspection - Crankcase Emission Control System - Emission Control System - Kia Soul 2014-2019 PS Service Manual

This may not be the main problem, but a new PCV is
(a) easy to access
(b) easy to change
(c) less than $10

Photos of location on my 2019 1.6L attached

PCV flow.jpg
PCV intake side of valve cover.jpg

To minimize the arguments I seem to get from my 2 cents, the following is quoted from the cars.com link:

The PCV system is seldom listed as a maintenance item, but an old valve that is no longer functioning like it should can cause performance and emissions problems...If the valve doesn’t open and close on schedule, or if any part of the system clogs, the result can be a rough idle, sluggish acceleration or increased oil consumption. Rough idling is commonly caused by bad spark plugs, so problems with the PCV valve are often misdiagnosed. If you have a bad PCV valve, PCV valve replacement could eliminate the problems listed above.

This appears to fit my 2019. It is listed for production models Aug 2016 and after. May be a different design for earlier Gen 2:

https://www.kiapartsnow.com/genuine/kia-valve-pcv~2674032804.html?Make=Kia&Model=Soul&Year=2017&Submodel=&Filter=(01=W5;02=D2;04=1;05=7)&Location=pd:20224A11,26740

For earlier Gen 2, research
https://www.kiapartsnow.com/genuine/kia-valve-pcv~267402g000.html?Make=Kia&Model=Soul&Year=2015&Submodel=&Filter=()&Location=pd:20224B11,26740
 

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2014 Titanium Stick Shift Pacific NW
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Thanks SportsDoc. I definitely vote to replace the PCV. Like you said, it's cheap and an integral part of the system.

If you screw around and play chicken with how long it will last, it could ruin an otherwise nice day :)
 

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That's so easy to do and so cheap... Instead of spending money on fancy K&A air filters, I just replaced the PCV valve.
Also, adding an oil catch can on that line is, IMO, a must for any GDI engine.


 

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My catch can is waiting for time to install it. But if it starts filling faster, and new (and cheap) PCV will be installed. It took Chevy more than a year of cars burning (what I consider) excessive oil to decide to warranty the PCV on the Spark, they jerked me around so much that I'll never own another Chevy. Took a loss and traded for a Fiesta before they decided to recall my car.
 

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My Soul has over 100,000 miles on it and my oil life was drastically declining. At first, I thought it might be due just because it does have so many miles on it, but I did some research and came across the PCV valve and how to change it. I ordered the part and went to changed it out. All I have to say is that the old valve was so clogged, no wonder it was using oil so much. I have a suspicion that the previous owners did not change the oil as often as they should have. I did find in my research that this can be a cause of bad PCV's. Glad to see there is a dedicated thread for this now.
 

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My Soul has over 100,000 miles on it and my oil life was drastically declining. At first, I thought it might be due just because it does have so many miles on it, but I did some research and came across the PCV valve and how to change it. I ordered the part and went to changed it out. All I have to say is that the old valve was so clogged, no wonder it was using oil so much. I have a suspicion that the previous owners did not change the oil as often as they should have. I did find in my research that this can be a cause of bad PCV's. Glad to see there is a dedicated thread for this now.
Cheap oil will also clog that valve faster...
 

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2014 Titanium Stick Shift Pacific NW
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6,769 Posts
My Soul has over 100,000 miles on it and my oil life was drastically declining. At first, I thought it might be due just because it does have so many miles on it, but I did some research and came across the PCV valve and how to change it. I ordered the part and went to changed it out. All I have to say is that the old valve was so clogged, no wonder it was using oil so much. I have a suspicion that the previous owners did not change the oil as often as they should have. I did find in my research that this can be a cause of bad PCV's. Glad to see there is a dedicated thread for this now.
What type and weight of oil do you use in your Soul?
 
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