Oil Consumption in '12 R-Spec

[Crusty Old Shellback]

I just talked to my service rep to set up my oil change. he said it is normal for some oil usage. he also said I should be changing the oil at 3700 vice 5K. I still don't see how it would be using that much oil though.

Could it be that with direct injection, the metal parts are running cooler due to the direct injection and therefor you get more oil blowby than normal into the cylinder? That is supposed to be an advantage of DI is the cooling of the cylinders.

 

[Philth]

I just talked to my service rep to set up my oil change. he said it is normal for some oil usage. he also said I should be changing the oil at 3700 vice 5K. I still don't see how it would be using that much oil though.

Could it be that with direct injection, the metal parts are running cooler due to the direct injection and therefor you get more oil blowby than normal into the cylinder? That is supposed to be an advantage of DI is the cooling of the cylinders.

Thought my '12 is a 3.8, it's GDI and uses almost no oil. I do 7,500 mile changes with Mobil 1 Extended Performance. Why is he saying you need to be doing 3,700 changes???

 

[marty5marty]

Thought my '12 is a 3.8, it's GDI and uses almost no oil. I do 7,500 mile changes with Mobil 1 Extended Performance. Why is he saying you need to be doing 3,700 changes???

Weird...my dealer also told me to do it at 3700 so i did lol...next one is 7500

 

[STREETS]

not acceptable- period. Should be no oil usage at 3500 miles.

 

[EXBMWGUY]

^ Short trips would be the reason. It's harsh duty. The crankcase fill up with water and it is deceiving. The first time you take a serious drive and blow out all that water, you're all of a sudden 1-2 quarts low and are creating, which causes huge problems with everything!

 

[EXBMWGUY]

Creating sludge!!

 

[Billfz1]

^ Short trips would be the reason. It's harsh duty. The crankcase fill up with water and it is deceiving. The first time you take a serious drive and blow out all that water, you're all of a sudden 1-2 quarts low and are creating, which causes huge problems with everything!

Ex BMWGUY,
If you have 1-2 quarts of WATER in supension in your crankcase there are 2 things going on. First: you have the best detergent oil in existance, let me know what you are using. (The term vaporware has real relavance here.) Second: your block or cylinderheads are cracked replace them! Well, your could have a blown head gasket, but that usually goes out the tailpipe.
Bill

 

[EXBMWGUY]

Bill,

I hear you, but have seen condensation form to a ridiculous level over a 6-12 month period, and if people are using extended oil change intervals there will be a huge problem. Check out V6 engines from Toyota on forums.

 

[Mark_888]

Bill,

I hear you, but have seen condensation form to a ridiculous level over a 6-12 month period, and if people are using extended oil change intervals there will be a huge problem. Check out V6 engines from Toyota on forums.

No one with a GDI engine should be using anything but a full synthetic. Problem is that Hyundai typically sells to extremely price-conscious consumers, and Hyundai does not want to concede that it costs more to maintain such engines. Toyota has already bitten the bullet, and now recommends synthetic on almost all of its engines (which I guarantee you that every single Hyundai salesperson reminds their customers of as soon as the customer mentions they are considering a Toyota).

 

[Mark_888]

Thought my '12 is a 3.8, it's GDI and uses almost no oil. I do 7,500 mile changes with Mobil 1 Extended Performance. Why is he saying you need to be doing 3,700 changes???

Because there is a design bust with the 5.0 GDI. If I had one, I would trade it in ASAP before the industry finds out that there is massive problems with this engine.

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[jmo51]

Because there is a design bust with the 5.0 GDI. If I had one, I would trade it in ASAP before the industry finds out that there is massive problems with this engine.

Do you have anything to base this on??

Good thing your 6 cyl doesn't need to bw traded...Lol

 

[homeofstone]

Ex BMWGUY,
If you have 1-2 quarts of WATER in supension in your crankcase there are 2 things going on. First: you have the best detergent oil in existance, let me know what you are using. (The term vaporware has real relavance here.) Second: your block or cylinderheads are cracked replace them! Well, your could have a blown head gasket, but that usually goes out the tailpipe.
Bill

Water in crankcase can also come from intake gasket failure depending on engine design.

 

[Mark_888]

Do you have anything to base this on??

Good thing your 6 cyl doesn't need to bw traded...Lol

I base it on the number of reported excessive oil consumption problems on this forum recently for the 5.0 GDI (R-Spec), and now water condensation problems. This is not normal, and I don't care what the f--k your local dealer or HMA says. Of course, when they say it is "normal" does that mean most 5.0 GDI Tau engines have that same issue, or does that mean it is normal for engines in general? I can tell you that in 2012 it is not normal for engines in general.

I don't recall a single person with the Tau 4.6 who mentioned this problem since 2009 on this forum. Maybe newer build dates of the 5.0 GDI have been fixed, but obviously there seems to be a pattern here that I would find very disturbing if it happened to my car.

If my 2009 V6 had any serious engine or transmission problems that were pervasive (not limited to my particular car), I would get rid of it ASAP. I have not noticed any oil consumption whatsoever between oil changes (just like the 3 other Japanese cars I owned before I bought my Genesis). I am sure a few drops of oil get consumed between oil changes, but not enough to notice any change in dipstick level. I perform my own oil changes every 5K miles with Mobil 1 0W-30 Advanced Fuel Economy synthetic oil.

 

[homeofstone]

I base it on the number of reported excessive oil consumption problems on this forum recently for the 5.0 GDI (R-Spec), and now water condensation problems. This is not normal, and I don't care what the f--k your local dealer or HMA says. Of course, when they say it is "normal" does that mean most 5.0 GDI Tau engines have that same issue, or does that mean it is normal for engines in general? I can tell you that in 2012 it is not normal for engines in general.

I don't recall a single person with the Tau 4.6 who mentioned this problem since 2009 on this forum. Maybe newer build dates of the 5.0 GDI have been fixed, but obviously there seems to be a pattern here that I would find very disturbing if it happened to my car.

If my 2009 V6 had any serious engine or transmission problems that were pervasive (not limited to my particular car), I would get rid of it ASAP. I have not noticed any oil consumption whatsoever between oil changes (just like the 3 other Japanese cars I owned before I bought my Genesis). I am sure a few drops of oil get consumed between oil changes, but not enough to notice any change in dipstick level. I perform my own oil changes every 5K miles with Mobil 1 0W-30 Advanced Fuel Economy synthetic oil.

^Well said.

 

[EXBMWGUY]

Water in crankcase can also come from intake gasket failure depending on engine design.

Agreed. However, I have had personal experience with excessive condensation build up.

 

[EXBMWGUY]

Mark, you have this obsessive thing about GDI engines, like they are all destined for catastrophic failure -- not if, but when!

Yes, Hyundai should be mandating synthetic oil. Many manufacturers do, and more and more car makers are going with GDI designs, and some do require synthetics be used. There are reasons for the shift to GDI designs. If there was a design flaw on ALL of the 5.0 Tau engines, that would have caught up with me and countless others who, instead, burn zero oil.

Most of us will not react hysterically and go out and sell our GDI-equipped cars. There have been, what, 8-10 reports in this forum of excessive oil consumption. That is not meaningful statistical number by any standard. Warranties will cover problem cars.

I repeat - I do not burn any oil using 0-20 Mobil 1 with 7500-mile changes and few short trips. I would change at 3,750 if I drove less than 15 miles each way to work. I repeat, I will not run out and sell my car because of what you have said here.

 

[EXBMWGUY]

Bill,

I hear you, but have seen condensation form to a ridiculous level over a 6-12 month period, and if people are using extended oil change intervals there will be a huge problem. Check out V6 engines from Toyota on forums.

My reference here was not my Genny - but a 2011 Avalon.

 

[Mark_888]

Mark, you have this obsessive thing about GDI engines, like they are all destined for catastrophic failure -- not if, but when!

Yes, Hyundai should be mandating synthetic oil. Many manufacturers do, and more and more car makers are going with GDI designs, and some do require synthetics be used. There are reasons for the shift to GDI designs. If there was a design flaw on ALL of the 5.0 Tau engines, that would have caught up with me and countless others who, instead, burn zero oil.

Most of us will not react hysterically and go out and sell our GDI-equipped cars. There have been, what, 8-10 reports in this forum of excessive oil consumption. That is not meaningful statistical number by any standard. Warranties will cover problem cars.

I repeat - I do not burn any oil using 0-20 Mobil 1 with 7500-mile changes and few short trips. I would change at 3,750 if I drove less than 15 miles each way to work. I repeat, I will not run out and sell my car because of what you have said here.

I haven't heard of any oil consumption problems with the Hyundai 3.8 GDI engine, so I would not have a problem with that engine. So I don't have any hysteria about GDI. I have previously noted that a lot of people complain about extra soot on their Genesis tailpipe compared to non-GDI engines, but that is not a deal-breaker for most people (although maybe not a good idea to get a white car with Hyundai GDI unless you want to regularly clean the rear bumper).

If your R-Spec 5.0 GDI doesn't use any oil, then maybe there is hope that the problem was a short-term production problem and that not all engines are affected by the oil consumption problem. But apparently Hyundai is saying that the high oil consumption is "normal" and is not intending to do anything about it. Whether or not Hyundai will repair those engines with the problem (probably a very expensive repair), or whether they expect people to keep adding oil, is what I would worry about.

Another thing that would worry me (if I owned a 5.0 GDI) is that some are now saying there is significant condensation in the crankcase that masks the true amount of oil that is being used, so maybe not everyone who has high oil consumption knows about it.

In any case, I think Hyundai needs to step up and get to the bottom of this situation and fix it.

 

[Crusty Old Shellback]

Another thing that would worry me (if I owned a 5.0 GDI) is that some are now saying there is significant condensation in the crankcase that masks the true amount of oil that is being used, so maybe not everyone who has high oil consumption knows about it.

WOW! you sure do read between the lines a lot and make a lot of assumptions. You know what they say about ASSume

I have yet to see anywhere in this thread that someone said they had significant condensation issues in their 5.0. So where are you getting your info?

And as for your over exagrated oil consumption usage, there are only a hand full of us who have reported it, out of how many 5.0's that are out there? That's what, maybe 2% of them?

 

[Glashub]

Ask An Engineer: GDI Problems In A Nutshell | The Truth About Cars
"The reason these issues have slipped through to production is that they won’t show up in a 500,000 mile torture test. These types of issues will appear after years of short trips (preventing the engine from reaching operating temperature), bad batches of fuel, etc. As we approach the efficiency limits of the internal combustion engine, the engines themselves (and associated support systems) have become more complex. As with the transition from carburetors to electronic fuel injection, there will be some overlap between relatively bombproof port injected engines and the unproven, first-generation GDI engines."

http://www.thetruthaboutcars.com/2012/05/ask-an-engineer-gdi-problems-in-a-nutshell/

HYBRID PORT/DI SYSTEMS
"Toyota has offered its D-4S fuel injection system for a number of years with certain models of its 3.5-liter V-6 engine. The D-4S uses a combination of both direct and port injection to blend the best traits of both systems. As it's explained in this article from Wards Auto, the port injection system handles clean startup, the direct injection handles full load acceleration, and the two systems work in tandem to balance everything in between. This D4-S system is also used on the 2.0-liter boxer four-cylinder that powers the Scion FR-S and Subaru BRZ."

http://wardsauto.com/news-amp-analysis/toyotas-twofold-strategy