US vs Euro 0w20 for new Kia Carnival

[Triple_Se7en]

FWIW my brother in law has a Tuscon that recently hit 300k miles. He services it carefully by the book because that is his personality type generally. I do not know what oil he uses but he is not a car guy so I doubt he gives it much thought.

The engine failure-faults in question are Gen 2's..... between 2012 and 2020.
What year is the vehicle that ran to 300k? The Gen 1 engines then were very good.

Majority of the failed engines are those that ran beyond Severe Service Lengths of 3.75k - did not raise the hood to check the oil and ran watery semi-syn bulk 5w20s.

Yes, thicker viscosities help the engine from destroying itself sooner. There's plenty of evidence on Hyunkia messageboards and BITOG that shows using 40w oils helps for longer engine life. Accent Abuser used the 30w varieties until around 70k for warranty assurances, then moved up to 40s and a few times the 50s also (15w50). He now is approaching 250k on his 2016 with original engine and yes, he abuses that engine.

Private Message member Accent Abuser here. He's a perfect example of how to doctor the troubled four cylinder engines..... vast majority Theta 2's. If 3.3 is only the discussion here, then be aware that significantly less failures have occurred with that V6 engine. But the multi-messageboards recommendation is to use one viscosity higher than the manufacturers...... so that would be 0/5w30.

 

[RAVL]

The engine failure-faults in question are Gen 2's..... between 2012 and 2020.
What year is the vehicle that ran to 300k? The Gen 1 engines then were very good.

Majority of the failed engines are those that ran beyond Severe Service Lengths of 3.75k - did not raise the hood to check the oil and ran watery semi-syn bulk 5w20s.

Yes, thicker viscosities help the engine from destroying itself sooner. There's plenty of evidence on Hyunkia messageboards and BITOG that shows using 40w oils helps for longer engine life. Accent Abuser used the 30w varieties until around 70k for warranty assurances, then moved up to 40s and a few times the 50s also (15w50). He now is approaching 250k on his 2016 with original engine and yes, he abuses that engine.

Private Message member Accent Abuser here. He's a perfect example of how to doctor the troubled four cylinder engines..... vast majority Theta 2's. If 3.3 is only the discussion here, then be aware that significantly less failures have occurred with that V6 engine. But the multi-messageboards recommendation is to use one viscosity higher than the manufacturers...... so that would be 0/5w30.

I have no real interest in doing so, respectfully. I just am curious how people buy cars when they believe the manufacturers are so incompetent. It is what it is. I personally think a lot of this stuff is blown out of proportion but I have zero experience with Hyundai or Kia, I just see a lot of them on the road.

 

[kschachn]

Out of all the manufacturers I have worked for, we have never denied a warranty for viscosity. Mater of fact they don’t care what oil is in it, we take the valve cover off to see if it has been CHANGED. If it has sludge or heavy varnish, that’s the tell tale sign. Only manufacturer I have seen warranty denied for bc of oil is VW. It was for a TDI, it kept having DPF issues left and right needed a constant regen. Tech couldn’t get the filter cleaned down to 10%. Tech ended up looking at the oil change sticker and it said Valvoline 5w40 from a Valvoline quick line facility. It needed a new exhaust system that was not covered. The customer was irate.

What approval did the Valvoline oil have? That’s what’s the important part, not the grade. Grade is irrelevant in that respect.

 

[Fahrvergnügen]

What approval did the Valvoline oil have? That’s what’s the important part, not the grade. Grade is irrelevant in that respect.

5w40 was was on an oil change sticker. The customer was asked where he got the oil changed and he said at Valvoline quick lube. This was a couple of years ago. It was probably either premium blue 5w40 diesel oil or maybe the old euro 505.00 or 505.01 which I doubt a quick lube place carries. Either way he paid for a new DPF system. VW denied that claim. Tech line said customer used incorrect engine oil for the VW after treatment systems.

 

[kschachn]

5w40 was was on an oil change sticker. The customer was asked where he got the oil changed and he said at Valvoline quick lube. This was a couple of years ago. It was probably either premium blue 5w40 diesel oil or maybe the old euro 505.00 or 505.01 which I doubt a quick lube place carries. Either way he paid for a new DPF system. VW denied that claim. Tech line said customer used incorrect engine oil for the VW after treatment systems.

The oil change facility should be responsible for using the wrong oil.

Which is odd, because I find that the few facilities I have been to are sticklers for using an oil with the correct approval.

 

[Fahrvergnügen]

The oil change facility should be responsible for using the wrong oil.

Which is odd, because I find that the few facilities I have been to are sticklers for using an oil with the correct approval.

The customer never did anything about it I believe. He probably paid it and called VW customer care ya know? But that’s the only denial I have seen regarding oil, but it wasn’t an engine failure, just after treatment. We have never been asked to sample oil to see if this viscosity or that viscosity was used. If the engine was clean and not varnished heavily, it was replaced

 

[kschachn]

Yes, the DPF wasn’t killed by viscosity.

 

[Mainia]

If the engines are this bad, why do some folks keep buying them? And if the engines are this “soft” - although I have never heard that term used with a motor - it seems engine oil viscosity is almost not an issue, they are going to have a short service life no matter what.

I dont own a Kia or a Hyundai so I have no dog in this fight and they are not really on my radar but it sounds like we are drifting into conspiracy theories. FWIW my brother in law has a Tuscon that recently hit 300k miles. He services it carefully by the book because that is his personality type generally. I do not know what oil he uses but he is not a car guy so I doubt he gives it much thought.

Ha ha ha, it is that bad……… a year plus ago, when I went too my Hyundai dealership to talk to the lead mechanic on a question I had. They had at least 12+ crates of blown short and long block sitting right in between the drive-in order writer garage tunnel and the mechanics garage. No hiding the issue of bad metallurgy choice, and EVERY person bring in their car could see it if they were not so un-curious. This has been going on for 12 to 14 years. The problem with using the sweeping generalization of conspiracy theory’s are many times the non watching, and un-courious are truly clueless by their own choice and can’t fathom things could possibly be so corrupt, so evil, or so stupid. This is just plain “so stupid”. It is plain as day, I also might add, it has some possible cultural issue of “putting their head in the sand” on quality issue, like some how not changing a thing year after year it will go away.

And to top it off, in full blown irony ………the mechanic told me his new Genesis blow up and he traded in right after HE put in a new motor under warranty. Why do people keep buying them? Most don’t know the issue, many just like the cars. I love mine. Lucky I have one of their better motors. Of course having this, is by pure luck, because they follow an over all course of choosing the WRONG metallurgy choice, time after time, after time. WHEN, two other large car manufacturers using the same “ close” blueprints and choose high quality “ more appropriate” metal choice for robustness and longevity, don’t have this problem. Do I have hope the new crop of Hyundai /Kia motor will fix their engine issues? I give them a 8% chance they will fix 50% of their engine issues, with this new crop of newly designed engines. Their track record says it all.