2012 2.4L Sorento Excessive Oil Consumption - Kia Forum

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post #1 of 41 (permalink) Old 04-06-2018, 08:26 PM Thread Starter
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2012 2.4L Sorento Excessive Oil Consumption

Hey all,

I have about 122,000 miles on my 2.4 Sorento. It's burning a quart of oil every 800 miles. It passed the engine recall noise test back in the summer of last year, so I called Kia this week and opened a case and am working with my dealer on an oil consumption test. Anyone else had oil consumption issues? Think this may be my engine going bad? At this point it seems it would be best to have them perform the recall again to see if it fails this time.


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post #2 of 41 (permalink) Old 04-06-2018, 09:24 PM
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You mentioned the current oil consumption, but nothing about the history of it. Have you been checking the oil regularly over your entire ownership? If so, at what approximate rate has the usage been increasing? If not, is this something that you just now discovered? Also what OCIs do you use, and which oil viscosity?

There have been quite a few reports of excessive Theta GDI oil usage, however almost all of them are posted on the Hyundai forums. I'm not aware of anyone showing reliable proof that oil consumption itself automatically leads to engine failure in these engines. Most of the Hyundai owners who report oil consumption also check the level regularly and top off as needed. However, if the engine is run with significantly low oil levels (as a result of not being checked), that is the kiss of death and will result in a seized engine. IMO this is the reason for a percentage of the engine failures - not all, but certainly some of them.
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post #3 of 41 (permalink) Old 04-07-2018, 07:26 AM
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If there are no obvious leaks, replace your PCV valve. That's a very cheap thing to do. It might be clogged and sucking up oil. If you still have the problem after replacing it, then your engine is likely going bad.
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post #4 of 41 (permalink) Old 04-07-2018, 03:31 PM
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The engine recall has nothing to do with oil consumption. Have you changed motor oil brands or used any additives in your engine oil lately? Has the Sorento ever been ran hot or overheated? What weight motor oil are you using?
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post #5 of 41 (permalink) Old 04-08-2018, 08:06 PM Thread Starter
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Sorry, I was in a hurry the other day and forgot that information. I bought it back in November with 116000 miles on it. It has been serviced at the Kia dealer it's whole life with all records. Oil changed every 4000 to 5000 miles. They did have it checked for an oil leak at 109000 miles and I'm assuming that's when it started. They did not find a leak and it doesn't have one now. I changed the pcv about 120000 miles, it now has 122500 miles and burns the same amount of oil.

Thanks for the help

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post #6 of 41 (permalink) Old 04-08-2018, 08:07 PM Thread Starter
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Kia is using 5w30 oil, whatever brand Kia puts in it. Im replacing with 10w30 valvoline maxlife full synthetic as I check and refill the oil.

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post #7 of 41 (permalink) Old 04-08-2018, 08:49 PM
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Originally Posted by Tennody View Post
Kia is using 5w30 oil, whatever brand Kia puts in it. Im replacing with 10w30 valvoline maxlife full synthetic as I check and refill the oil.
With that much oil consumption, I would up the viscosity to a 5W or 10W-40.

A high-mileage motor oil wouldn't be a bad idea to try.

That said, 1 quart every 800 miles is excessive and totally unacceptable. There's definitely something else going on here.

Good luck.

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post #8 of 41 (permalink) Old 04-08-2018, 11:27 PM
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Interesting. My 2012 Sorento 2.4 doesn't burn anything and I'm still using 5w-20 synthetic with 7-7.5k change intervals. It used oil briefly around 40-50k adding about 1/2 quart every 1k but for whatever reasons stopped using after that. I don't do a lot of short trips and at least once a month do a 400 mile weekend..
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post #9 of 41 (permalink) Old 04-09-2018, 09:10 AM
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Originally Posted by ediamiam View Post
Interesting. My 2012 Sorento 2.4 doesn't burn anything .....
There has been no consistency or pattern to the Theta GDI/Turbo oil loss. As with yours, some Hyundai owners report virtually none, while others report losing amounts spanning a very wide range. The important thing is for all owners to check regularly and top off whenever necessary (which of course is also the case for any make or model vehicle).
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post #10 of 41 (permalink) Old 04-09-2018, 09:22 AM
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Originally Posted by Tennody View Post
...I bought it back in November with 116000 miles on it....
Unfortunately this means the oil history is a complete unknown. Yes, the oil was changed regularly, but there's no way of knowing if it was ever checked and topped off in between OCIs.

Hopefully, with KIA having done all of the maintenance, there should be no waffling on their part about getting a long block engine replacement, should that become necessary. If something does happen to this engine, stand firm if they try to dealer-dance out pf their responsibility on this. KIA Theta recall documentation extends the coverage to 15 years and unlimited mileage regardless of ownership, and they have done the maintenance. There is nowhere for them to run and hide.
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