oil consumption high for a 2015 model?

[beantownb8.5]

disclaimer 1- no, im not going through the HUNDREDS of pages in the old post about oil consumption, and most seem to only apply to older cars.

Disclaimer 2- this is a 2015 audi a4 premium with an IE stage 1 tune

Got an oil change from Audi mid last year at 37,229 miles along with my 35k service. The car is now at 44,492 miles and just as I was pulling into work told me I need to put in a QUART of oil. MMI is still showing that I have 2700 miles till my next service is needed. I called audi service locally and they said that that level of consumption is normal and I could come to Audi and get it topped off free of charge. He did state that my car is not in the age range that has the documented oil consumption issues.

1- Anyone else have this issue with a car this new?
2- is the IE tune burning more oil than it usually would?
3- is this something I should really get on Audi to take a look at and investigate further?

[twixinthemix]

I burn more oil on my factory tune than my APR stage 2..

[ps2cho]

Well first things first you need to verify no signs of oil leaks anywhere.

[beantownb8.5]

Well first things first you need to verify no signs of oil leaks anywhere.

No leaks. park it in the same spot at work and in my garage. zero spots on either

[KornSucker]

I too am in a 2015 B8.5 A4 with very little oil consumption. You can still tell I’m burning or leaking looking around the engine, but nothing to the point where I need to add more in between oil changes. I too am IE stage I.


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[BrianC302]

Bullshit is it normal! They have the absurdly claim in the owners manual that up to a quart every 1,000 miles is normal (I think that is the number). Now that mine has new pistons and rings, it has burned no measurable amount of oil and the last oil change I went nearly 10,000 miles (mostly highway).

So no, it isn't "normal". There is a reason why it is burning oil, likely the rings which still seem to be an issue on many newer 2.0's too (be it not as bad). I bet it will get worse with time.... but hope for your sake it doesn't. I assume yours didn't burn oil when it was new?

[prkieffer]

i have a 16” a4 b8.5 apr k04 tune. just started burning oil at 42k found oil in cylinder 1 around spark plug. de tuned back to dealer, at dealership currently. i’ll post what i find.


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[Theiceman]

if dealer sees a tune you are toast regardless... they will tell you to go away likely .

My 2014 was a horrific oil burner. Im not sure what cars got the 8 year 80K extended warranty. maybe yours does not even get the warranty. I rebuilt engine at 220K and its fine now.

[spin0rz]

Have your pcv inspected.

I don't get why people do such long oil chance intervals yet complain about burning 1qt over 7K. any turbo car will burn some oil to a degree and unless you're putting some top quality oil, 10k interval is pushing it with a tune.

Edit; which oil is being run in the car?


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[Shuga]

If you tune the car it’s on you. That is the territory when modding cars.

[Jh8909]

My ‘13 burns a quart or a little more every 1200-1300 miles. It sucks but I’m not paying thousands of dollars to get it fixed. I’m just gonna keep putting oil in with more frequent oil changes.

I was trying to do research on what oil to put in that is a little thicker but I couldn’t decipher the tons of different opinions on here from different people and their experiences.


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[richardm0025]

No leaks. park it in the same spot at work and in my garage. zero spots on either

Parking it in the same spot and not seeing anything doesnt necessary mean its not leaking... go under the car and remove the belly pan and inspect. Anything over 1 quart per 2500 miles is normal to Audi. Just drive it and enjoy it!

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[ps2cho]

Parking it in the same spot and not seeing anything doesnt necessary mean its not leaking... go under the car and remove the belly pan and inspect. Anything over 1 quart per 2500 miles is normal to Audi. Just drive it and enjoy it!

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It’s not “normal”. Audi puts that language in there so you can’t complain about it. It’s a legal relief for them while under warranty.

I have a 140k E350 original everything and doesn’t burn a drop whatsoever.

[Crucible35]

My '15 is going through a quart every 2,500 kms at the moment. Pretty consistent actually. I plan to have my independent shop check my PCV in the next while.
This has been a bit of a shock since my '09 A4 was a poster-child for the oil consumption threads. After the engine was rebuilt it lasted another 40,000 kms.

[richardm0025]

Its not "normal" to you and myself but it is "normal" to what Audi states. Which why they do that is exactly what you added.

And yes my Mercedes NA v6 doesnt burn a drop of oil however thats a totally differnt engine and brand.

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[richardm0025]

Also, change your oil every 5k miles instead of the recommended 10k that Audi states is ok to do.

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[old guy]

I would have thought that the oil consumption was corrected by 2015. But obviously it hasn't been. It really seems to be a hit or miss condition. There must be some common denominator between the burners versus the non-burners.

I have a 2013 CAEB engine. I changed my oil last month at 55k miles following a 5k OCI. I drained out 4.6 liters and replaced it with a fresh 4.6 liters. Typical of every oil change and I have never added oil between changes.

I guess I got lucky (or my mileage is low enough that the oil burning issue just hasn't yet appeared).

[beantownb8.5]

Have your pcv inspected.

I don't get why people do such long oil chance intervals yet complain about burning 1qt over 7K. any turbo car will burn some oil to a degree and unless you're putting some top quality oil, 10k interval is pushing it with a tune.

Edit; which oil is being run in the car?


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Hate to sound ignorant but last oil change was at audi... so whatever they put in. I topped up with Mobil 1 full synthetic 0W-40, was on the list of approved oils

[Jezza]

disclaimer 1- no, im not going through the HUNDREDS of pages in the old post about oil consumption, and most seem to only apply to older cars.

Disclaimer 2- this is a 2015 audi a4 premium with an IE stage 1 tune

Got an oil change from Audi mid last year at 37,229 miles along with my 35k service. The car is now at 44,492 miles and just as I was pulling into work told me I need to put in a QUART of oil. MMI is still showing that I have 2700 miles till my next service is needed. I called audi service locally and they said that that level of consumption is normal and I could come to Audi and get it topped off free of charge. He did state that my car is not in the age range that has the documented oil consumption issues.

1- Anyone else have this issue with a car this new?
2- is the IE tune burning more oil than it usually would?
3- is this something I should really get on Audi to take a look at and investigate further?

What oil? I have noticed difference in oil consumption rates with different oils. My 2011 was a horrendous oil burner, so I have plenty of experience with this issue. I eventually replaced the engine with that of a 2014, and there is some consumption. It isn't much to speak of though. I suspect it's mostly from the turbo as it has over 100k miles on it and had to cope with high crankcase pressure from the old faulty engine.

Anyway, I noticed that cheaper oils like Mobile 1 European Formula tended to burn off quicker than say Motul or Liquimoly. They would also produce more vapours from the oil fill hole after a hard drive while higher end oils wouldn't. There is also a wear component here. Oils, no matter how good shear over time. The lighter elements turn to vapours from the heat and pressure and get evacuated by the PCV system. This leaves the heavier stuff to gunk up your engine and PCV system. This is why oil changes are essential. It is by no means a closed system.

Obviously, the shearing of the oil becomes worse the longer it remains in the engine. If you change it every 5,000 miles instead of 10,000, I bet you'll see a bigger drop in consumption than if it were a strictly linear relationship. No oil is really up to 10k mile intervals in a turbocharged vehicle. The prop shaft of a turbo turns so much faster that the crank of an engine up to and over 10 times faster in many cases. That is way more heat and pressure than the oil sees anywhere else in the engine.

Further, the long oil changes, I believe, lead to a build up of heavy gunk in the PCV system leading to a reduced ability to properly vent pressure from the crankcase leading to possible failure of the piston rings and turbo seals. I don't think the newer engines are immune to this. I think they simply have higher friction piston rings to alleviate the symptoms and last longer. In short, you can prevent this by using high quality oils and changing the oil every 5,000 miles.

Sorry for the long reply, but this is such a technical and difficult problem that it necessitates such an answer to even scratch the surface.

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[BrianC302]

What oil? I have noticed difference in oil consumption rates with different oils.

Anyway, I noticed that cheaper oils like Mobile 1 European Formula tended to burn off quicker than say Motul or Liquimoly.

No oil is really up to 10k mile intervals in a turbocharged vehicle. The prop shaft of a turbo turns so much faster that the crank of an engine up to and over 10 times faster in many cases. That is way more heat and pressure than the oil sees anywhere else in the engine.

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My 2011 burns no measurable oil (after pistons and rings and I use Mobile 1 0W-40) and I have gone nearly 10,000 miles between oil changes. I am only ~25,000 miles after getting it fixed but so far so good! My turbo also only has ~25,000 miles.

To me this indicates that my engine shouldn't burn any oil. If it starts to in the future, it isn't "normal". That would indicate something is wrong (likely rings getting caked up or the turbo isn't happy).

While I don't disagree the 5,000 mile oil change interval may be somewhat helpful for longevity, I am not sold. I guess am using my car as an experiment as I doubt I will keep it much past 130,000 or 140,000 miles anyway and I have little doubt it will still be fine at that point related to oil consumption. I think my new rings will hold up much better than the originals.

[beantownb8.5]

thanks everyone for the responses. I think when I bring it in for the 45k service ill ask them to check and see if they think anything is going on. im sure theyll say no, but not sure what else I can do

[Theiceman]

Hate to sound ignorant but last oil change was at audi... so whatever they put in. I topped up with Mobil 1 full synthetic 0W-40, was on the list of approved oils

they likely use castrol syntec 5w40
i use the mobil one 0w40 , its a good product.

[Depthcharge]

Make sure your purge line outbound from the PCV is seated. That elbow bend is fickle. I have noticed an uptick in consumption after going IE stage 1, and I did swap out the PCV from J to AK version. The car feels healthier, but eating oil means there's an issue somewhere. I'm going to switch over to Liqui moly leichlauf 5w-40 and see if there's any improvement.

[Allthea]

Are you boosting regularly (driving kinda hard)? If you're boosting, you're burning. It's the nature of driving a turbo vehicle. Just watch it and top it off whenever you're down a half quart. I usually top mine off if I burn 1/4 quart.

Bought the car with 13k miles and burned about a quarter of a quart in my first 10k miles. Since the 23k to 33k, I'm probably burning about a half of a quart in that second 10k.

Change it more often as suggested. I'm moving to a 5k OCI after my next, upcoming change.

Honestly, 1 quart over 7k miles is not that bad. Be thankful you aren't driving a turbo Subaru. Those are reasonable to burn 1 quart over 3k miles, and a lot of them can burn 1 quart every 1k miles and no one really bats an eye. Just watch it and keep it topped off.

[Comfy Pursuit]

Are you using E85?


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[Theiceman]

If you have good turbo seals you will burn no more than any other car.
But i agree i litre in 7k is nothing to really worry about. Just know it is only going one way from there


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[Zuzuwu]

High rpm and frequent heavy throttle tends to lead to more oil consumption. An aging turbo will allow more oil past the seals leading to more oil consumption, especially if you're running higher boost pressures with a tune. Oil brand and viscosity will affect it as well. Different brands of oil evaporate at different rates. This becomes more apparent the harder you drive the car and it's actually a major factor considered when chosing oil for high performance engines in track cars and what not.
Related story: I had a little nissan s-chassis side project a few years back that never burned any oil. One day i got a good deal on some castrol and changed the oil with it. Like 1000 miles later i figured i should check it. Pulled the dipstick and there's nothing. Add a quart and still nothing. The thing burned 3 quarts of oil in 1000 miles, i couldn't believe it. Switched back to whatever i was using, havoline i think, and it never burned a drop again. So yea, oil brand alone can have a huge effect.
In your case, 1 quart over 7000 miles is nothing to be upset with.

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[CONative]

I’m with Theiceman and Allthea in that a quart in 7K is not bad, and probably expected.

And maybe I’m the only one here, but I’m not one to go the 10K intervals Audi suggests. I’m no expert on oil but we all know oil breaks down and the more 10K oil changes you do, the higher the risk of friction being created. Especially when breaking in a new engine, I think it’s wise to go no more than 5K. I’ve read some discussion over in the B9 forum about blown motors and one of the assumptions was the oil change intervals.

So I would try to stick to 5K intervals, maybe every 7500 if you want to keep the internals in good shape.


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[Theiceman]

I change all my cars every 3k miles. Always have always will. Oil is cheap and my cars tend to live long healthy lives


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