Kia changed oil viscosity recommendations

[kschachn]

API doesn’t issue ratings for oils to carry, it grants licenses.

 

[edyvw]

Yes, it’s very vague. I believe it was Hyundai that “required” a spec that was non existent. (Can’t remember the specifics.)

A5 “or higher.”

 

[HoosierStinger]

API doesn’t issue ratings for oils to carry, it grants licenses.

Thanks for edumacating me on proper terminology. I'm a newbie here

 

[kschachn]

Thanks for edumacating me on proper terminology. I'm a newbie here

That high of an HT/HS is unneeded but it won’t do any harm. You’d be equally served by an oil from Walmart that has Porsche A40 approval and costs much less.

 

[yowps3]

Power density might be better:

Low Speed Pre-Ignition (LSPI) | Chevron Oronite (Global)

LSPI is an abnormal combustion event in which the fuel-air mixture ignites before intended, causing excessive pressures inside the engine's cylinders.

www.oronite.com

There was no mention of LSPI affecting engines of a specific displacement?

 

[Propflux01]

My questions, why would it suddenly start using oil simply because of better flowing cats?

 

[Fahrvergnügen]

I own a 2019 Kia Stinger GT2 with the 3.3tt gdi engine. Kia originally gave a wide range of oil viscosity recommendations for my engine (5w30, 5w40, 10w30, 15w40 and 20w50) in June of 2018 they released a TSB narrowing the recommendations to only 5w30 and 10w30. Can anyone give a reason for this? The 2.0T engine can still use the heavier oils. Why remove them for the 3.3tt? View attachment 106813View attachment 106814Now I'm at 40k miles and starting to notice some oil consumption. Currently I'm using Pennzoil platinum euro 5w40. I'm thinking about stepping up to 15w40 or 20w50. Thoughts?

Unfortunately my friend being a former Kia tech, this is normal for Hyundai engines and it will need an engine at around 100,000 if not sooner. I have replaced a whole lot of engines in this make. For the Equis, they had us replace the dipstick with a longer range to hide the consumption from consumers.

 

[twouvakind]

Ask the Service Manager......let me know how that works out for you.

 

[wlk]

Could also try PP Euro L 5w30 if you want to go 30w route.

 

[Gokhan]

I own a 2019 Kia Stinger GT2 with the 3.3tt gdi engine. Kia originally gave a wide range of oil viscosity recommendations for my engine (5w30, 5w40, 10w30, 15w40 and 20w50) in June of 2018 they released a TSB narrowing the recommendations to only 5w30 and 10w30. Can anyone give a reason for this? The 2.0T engine can still use the heavier oils. Why remove them for the 3.3tt? View attachment 106813View attachment 106814Now I'm at 40k miles and starting to notice some oil consumption. Currently I'm using Pennzoil platinum euro 5w40. I'm thinking about stepping up to 15w40 or 20w50. Thoughts?

A good 5W-30 or 10W-30 is all you need. You don't need thicker unless you're racing the car.

 

[yowps3]

A5 “or higher.”

I'm guessing upcomong ACEA A7 can fulfill that requirement?

 

[kschachn]

I'm guessing upcomong ACEA A7 can fulfill that requirement?

The Hyundai statement is worthless in that regard.

 

[FCD]

I'd run M1 0W-40, it's a pretty light 40 grade that anyway tends to shear down to a 30.

However that you're starting to notice oil consumption at 40k is rather disappointing.

 

[kschachn]

I'd run M1 0W-40, it's a pretty light 40 grade that anyway tends to shear down to a 30.

However that you're starting to notice oil consumption at 40k is rather disappointing.

Actually we haven’t seen a viscosity deviation in that oil for a while now. That’s old news, and even if it wasn’t it would be highly application specific. Most engines do not typically cause mechanical shear.

And that consumption needs to be investigated in regards to the cause.