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Discussion Starter · #1 ·
I have the SX model (1.6L Turbo)

The oil cap states 5w-30
The manual states 5w-30 or 5w-40
The Kia website states 5w-30

I've had a total of 4 oil changes since owning the vehicle (over a year).
The dealership has been putting in 5w-20
Does anyone have any thoughts? Understanding of this?
Looking online lots of oil forums are saying 5w-20 is bad for turbo GDI engines.

Any insight would be appreciated.
 

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Registered User
2021 KIA Seltos SX Turbo
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10 Posts
Find another dealer. The dealer i used to go to used 5W20 in my turbo Forte. It's supposed to be 5W30 or 5W40 in the turbo engines.
 

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Yep my selling dealer was going to charge me extra for synthetic if I wanted it on a nc first service. After a short email exchange where I stated the sx 1.6 turbo calls for synthetic, he agreed and I got my nc service. They also use Petro Can synthetic oil which as far as I can tell is not ACEA A5 certified like manual states. I perform my own maintenance, that I enjoy doing, so with all the misinformation from dealer's I'm not concerned with warranty disputes,
 
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