Oil Newby - Looking for help deciding if this oil is good for making my GDI engine last

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Dec 19, 2019
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Muncie, Indiana
If you're worried about carbon on the intake valves then I suggest doing the preventative maintenance of running a can of CRC IVD Intake Valve & Turbo Cleaner or a similar cleaner every other oil change or every oil change if you feel so inclined.
 

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Nov 2, 2020
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Is this particular Kia engine known to carbon up the intake valves?

If it's an engine known to load the engine oil with soot and/or fuel, I'd try for a low NOAC oil and not extend drain interval too far.
it's a new engine for them (as I understand they boared out a 3.3 liter they had) but the engine being Atkinson cycle should help with carbon building as I read

"the intake valve remains open during part of the compression stroke, pushing some of the air/fuel mixture back into the intake"
 
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Dec 7, 2003
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I think you are woried about a "what if" that may never be a real issue. Use a good name brand oil that meets your engine requirements, change oil at the manufacture requirement and enjoy your vehicle rather than worrying about things.
 
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You will be fine running 5w30 year round and stick with a 5/6 K OCI. I run 5w30 and a 5K OCI on my 2.0T GDI. ;)
 
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5W-30 should be fine year 'round. I would just follow the Kia severe service schedule of 3750 miles.
 

AutoMechanic

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I haven’t used the Kirkland oil but I always buy the products I know which would be Castrol it will be fine to use in your GDI vehicle.
 
Joined
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Yeah thanks for asking, when commuting to work, it's gonna be mostly freeway with some street traffic to get onto/from the freeway to my destination. Is there additives I should see about adding if I do start driving more in the street but I have Kirkland oil in there?

Nah, the freeway is good for both the engine and the oil. Sounds like the Kirkland oil will be more than fine for this commUte.... :)
 
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