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Discussion Starter · #1 ·
I am hoping to get some more insight into what is truly "normal" oil consumption on the Gen 1 Macan Turbo, as the used 2015 Model with 41,000 miles that I picked up in September has been going through one quart every 250 miles. I have had it to the Porsche dealer four times since buying it, and they claim they cannot find anything wrong with the car. They did a boroscope (said there is no bore scoring), found no leaks anywhere, found no blowby in the exhaust, recalibrated the oil measurement sensor, and did a complete oil change filling it to the brim each time I brought it in per Porsche's instructions.

Each time they would have me drive it after and log how many miles it took until the low oil light came on again. Every time it was between 250 and 300 miles. They would then drain the oil, measure how much had been burnt, and send me on my way again. Each time it would burn .8-1 full quart in that span of 250-300 miles.

The last time I had it to them, Porsche Corporate instructed for them to drive it themselves for the same span (300 miles). They put three hundred miles on and claimed it did not burn a drop. This dealership is located on a highway, and presumably a tech took it to and from work a few times. I live in the city, never have any highway driving on my commute, and drive stoplight to stoplight along my four mile commute to and from work in traffic. Porsche is claiming this is what is causing the consumption.

That being said, none of the other four cars I have owned while making this commute had/have excessive oil consumption. This includes my 997 Turbo.

Is this truly "normal" as Porsche is saying or am I being given the run around?
 

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I am hoping to get some more insight into what is truly "normal" oil consumption on the Gen 1 Macan Turbo, as the used 2015 Model with 41,000 miles that I picked up in September has been going through one quart every 250 miles. I have had it to the Porsche dealer four times since buying it, and they claim they cannot find anything wrong with the car. They did a boroscope (said there is no bore scoring), found no leaks anywhere, found no blowby in the exhaust, recalibrated the oil measurement sensor, and did a complete oil change filling it to the brim each time I brought it in per Porsche's instructions.

Each time they would have me drive it after and log how many miles it took until the low oil light came on again. Every time it was between 250 and 300 miles. They would then drain the oil, measure how much had been burnt, and send me on my way again. Each time it would burn .8-1 full quart in that span of 250-300 miles.

The last time I had it to them, Porsche Corporate instructed for them to drive it themselves for the same span (300 miles). They put three hundred miles on and claimed it did not burn a drop. This dealership is located on a highway, and presumably a tech took it to and from work a few times. I live in the city, never have any highway driving on my commute, and drive stoplight to stoplight along my four mile commute to and from work in traffic. Porsche is claiming this is what is causing the consumption.

That being said, none of the other four cars I have owned while making this commute had/have excessive oil consumption. This includes my 997 Turbo.

Is this truly "normal" as Porsche is saying or am I being given the run around?
I would suggest that you take your Macan to a highly regarded Porsche specialist indie shop and ask them to run a leak-down test. If the valves or rings have been damaged, this should help with the diagnosis. There is no way to say this is normal oil usage in a modern Porsche. Good luck.
 

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Discussion Starter · #3 ·
Thanks for the quick reply. I have a Porsche indie that I go to for everything on my 997 (very highly trusted in the area), and just got off the phone with him. Interestingly, he said that if the boroscope was fine (which it was, there was no bore scoring/piston damage or oil in the exhaust indicating bad seals), that it could just be what it is. He said the oil consumption is a known issue on this, which may just be exacerbated by my commute. He told me to have me let it idle for 30 minutes, see if its smoking at all (which it hasnt been), and otherwise its probably "fine" and not worth bringing in to him. I'm just going to be adding oil every few weeks it looks like.
 

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A four mile commute in stop & go traffic is terrible on your car! That's the worst way to warm it up,
if it ever does get warmed up and it's likely your vehicle's battery isn't getting properly charged either.

I know someone who had a short commute like yours and over time their vehicle developed all sorts of
electrical issues as a direct result of battery cycling and not getting properly charged. Similarly, the
techs took the car for a week and drove it daily and could not reproduce the issue. The car had an
early version of a PDK type of transmission. Eventually, threshold voltage on some solenoid for the
transmission would not be reached and when a traffic light turned green, the transmission would not
engage! This happened repeatedly - of course on a completely transient basis.


I would recommend you leave for work earlier and take the Macan for a ride - not stop & go - and get
the oil up to at least 185F, then go back to your stop & go ride. See if that doesn't help with the oil
consumption.

BTW, are you aggressive on the go pedal in the stop & go stuff? Driving a car hard while the oil is
still cold is not a good practice...


Good luck!
 

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Discussion Starter · #5 ·
Yeah the commute is brutal to be honest. It seems more and more like that may be what is causing the issue. I'm going to take your advice, or better yet take it out on a long highway drive. I bought it to use as a ski vehicle but had been scared of taking it on long trips with the consumption issue. Maybe I should have been doing the opposite all along.

I dont drive the car hard until it is warmed up by the way. That being said, I normally do have it in Sport+.
 

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Thanks for the quick reply. I have a Porsche indie that I go to for everything on my 997 (very highly trusted in the area), and just got off the phone with him. Interestingly, he said that if the boroscope was fine (which it was, there was no bore scoring/piston damage or oil in the exhaust indicating bad seals), that it could just be what it is. He said the oil consumption is a known issue on this, which may just be exacerbated by my commute. He told me to have me let it idle for 30 minutes, see if its smoking at all (which it hasnt been), and otherwise its probably "fine" and not worth bringing in to him. I'm just going to be adding oil every few weeks it looks like.
With all due respect, this advise from your mechanic seems to given from an armchair, not from the shop floor. He is opining and taking the word of the dealership boroscope conclusions without doing any tests himself. Protect your self-interests. Get a leak-down test performed is my advice. This oil consumption is just not normal, regardless of your driving habits.
 

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Discussion Starter · #7 ·
I appreciate the candor, truly. I've developed a game plan. Based on your advice and the advice from my mechanic as well.

I'm adding Liqui Moly Oil Saver, topping off, and driving on the highway for a long trip to see if theres truly no burning under those conditions. If there is, it is going straight in for a leakdown. If not, Im proceeding to do the same 200-300 miles in the city as usual. After, i'll be having a leakdown test done to cover all bases one way or the other. Given the burn rate as of yet, this experiment should only take a couple of weeks.
 

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With all due respect, this advise from your mechanic seems to given from an armchair, not from the shop floor. He is opining and taking the word of the dealership boroscope conclusions without doing any tests himself. Protect your self-interests. Get a leak-down test performed is my advice. This oil consumption is just not normal, regardless of your driving habits.
^^^^ This ^^^^

To the original poster -
The inde[endent shop did not look at the car and the dealership dropped the ball . There is no way my dealership would send me home with a car adding oil every 250 miles . Had this been a warranty issue they would have called a Porsche rep . Every region has a rep who is called when all the avenues at the dealership level have been exhausted and the guy who gets that call knows how to fix any car from scratch . Even Nick Murrays buyback car was rebuilt (they found it in Florida years later with the buyback right on the carfax ).

Everything can be fixed . Its a question. of whether its worth it to even bother . Myself .. with an SUV .. its supposed to be reliable .. I'd move on .
 

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STOP! Please.... Don't put anything in your engine just yet. You haven't proven what the problem is and now you're attempting to fix something you haven't identified by adding stuff to the crankcase.

Ensure the oil level is correct and take a drive on the highway to mimic what was done earlier by Porsche. Take your own measurement when the trip is over and compare.

May I also suggest, your exhaust tips must be coated with oil residue by now really bad. Are they?
 

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In addition to ///Bruce's suggestion, try driving in normal mode. Normally with a Turbo you really shoud only need to use normal or Sport mode & not Sport + unless tracking the car.

If you find a 300 mile highway drive, in normal mode, also burns or leaks oil then the dealer may not have been honest with you.

I hope you get this fixed since the car is awesome.

My MY2016 Turbo will use ½ - ¾ Qt in a year. ~ 6K miles.
 

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I have a similar 5 mile commute each way to work and my oil burn is less than 1 quart after 7k miles. However I do take longer weekend trips in my 17 TT. I drive 70% comfort mode, 25% sport, rarely sport+

1 quart every 300 miles is definitely not normal.


Sent from my iPhone using Tapatalk Pro
 

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I don't have a Turbo but a S and had for the last 3 years a 10 mile commute one way every morning to my office. The car would barely get warm as I live in a cold weather. I never had any issue with oil consumption. I get oil changed once a year (8k miles per year) by my dealer but never had to add anything before that.
 

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Discussion Starter · #13 ·
^^^^ This ^^^^

To the original poster -
The inde[endent shop did not look at the car and the dealership dropped the ball . There is no way my dealership would send me home with a car adding oil every 250 miles . Had this been a warranty issue they would have called a Porsche rep . Every region has a rep who is called when all the avenues at the dealership level have been exhausted and the guy who gets that call knows how to fix any car from scratch . Even Nick Murrays buyback car was rebuilt (they found it in Florida years later with the buyback right on the carfax ).

Everything can be fixed . Its a question. of whether its worth it to even bother . Myself .. with an SUV .. its supposed to be reliable .. I'd move on .
So my situation and the warranty status on this car is another whole level to this thing. The car was Porsche CPO, was then traded into a Jag/Land Rover dealership, which is where I bought it used. As a result, it lost the CPO status. The car was burning oil from day one that I purchased it. I didn't realize until a week or so in, so I phoned Jaguar, who told me to bring it to Porsche as it was "CPO" and still had coverage. This was news to me. Jag hadn't sold it to me with any implication that there was warranty on it from Porsche, I had bought it thinking (correctly as it turned out) there was no warranty left. So, I was happily surprised to hear that.

When I brought it to the Porsche dealership they immediately told me it was not CPO anymore because of being sold through Jag. That being said, they did work directly with corporate on this to try and diagnose it and covered all the costs. This meant four oil changes, a loaner, all the diag work - I didn't pay a penny for it. Porsche goodwilled the whole thing. But, when they supposedly found nothing in the boroscope and then drove it on their own and it didn't replicate the burning, it sounds like corporate told them to cut me loose.

This issue would ultimately be something I could pursue a lemon law buyback with, as it was there since I bought the car. I would have to go back to Jaguar, probably fight them, and prove that the oil consumption was part of a larger issue with the engine that would require it to be lemoned. The trouble is, I now have a loooong report from the Porsche dealership saying there is no evidence of anything wrong with the engine and the consumption is my route/driving habits.
 

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Discussion Starter · #14 ·
Thank you to everyone with Turbos that have indicated what their consumption looks like as well, these are helpful data points.
 

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Discussion Starter · #15 ·
STOP! Please.... Don't put anything in your engine just yet. You haven't proven what the problem is and now you're attempting to fix something you haven't identified by adding stuff to the crankcase.

Ensure the oil level is correct and take a drive on the highway to mimic what was done earlier by Porsche. Take your own measurement when the trip is over and compare.

May I also suggest, your exhaust tips must be coated with oil residue by now really bad. Are they?
The liqui moly is definitely not intended as a fix, it's simply an additive that is known to be helpful in reducing burn. It definitely won't prevent whatever is happening from continuing to happen. I understand what you mean though, as far as keeping all variables the same for the sake of testing.

The exhaust tips, surprisingly, don't have much in the way of residue on them. The car also doesn't seem to smoke excessively.
 

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If this much oil is actually being passed through the engine, it is surprising that the ecu hasn't yet thrown a code saying the catalysts have been damaged.
 

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I also have a 15 Turbo, 27,000 mi, similar short drive to work but does Include a few miles on the highway at 80mph, and I might have to add only 1/2 qt oil every 2,500 miles. Your issue is not normal for sure.

I feel your frustration, as where can oil go? It either leaks out or gets burned out, right? I assume your garage floor is clean of oil puddles, so it must be burning. How do you know it doesn’t smoke? Have you had someone follow you to check?

Keep us posted with the outcome
 

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So my situation and the warranty status on this car is another whole level to this thing. The car was Porsche CPO, was then traded into a Jag/Land Rover dealership, which is where I bought it used. As a result, it lost the CPO status. The car was burning oil from day one that I purchased it. I didn't realize until a week or so in, so I phoned Jaguar, who told me to bring it to Porsche as it was "CPO" and still had coverage. This was news to me. Jag hadn't sold it to me with any implication that there was warranty on it from Porsche, I had bought it thinking (correctly as it turned out) there was no warranty left. So, I was happily surprised to hear that.

When I brought it to the Porsche dealership they immediately told me it was not CPO anymore because of being sold through Jag. That being said, they did work directly with corporate on this to try and diagnose it and covered all the costs. This meant four oil changes, a loaner, all the diag work - I didn't pay a penny for it. Porsche goodwilled the whole thing. But, when they supposedly found nothing in the boroscope and then drove it on their own and it didn't replicate the burning, it sounds like corporate told them to cut me loose.

This issue would ultimately be something I could pursue a lemon law buyback with, as it was there since I bought the car. I would have to go back to Jaguar, probably fight them, and prove that the oil consumption was part of a larger issue with the engine that would require it to be lemoned. The trouble is, I now have a loooong report from the Porsche dealership saying there is no evidence of anything wrong with the engine and the consumption is my route/driving habits.
You have no warranty as CPO ends once that car was traded to a non Porsche dealership (as you stated) . Lemon Law on a used car is not realistic . You really have to dump the car .

I have no idea if this is related but years ago a guy who I spoke to but never met had an issue with oil .
 

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The liqui moly is definitely not intended as a fix, it's simply an additive that is known to be helpful in reducing burn. It definitely won't prevent whatever is happening from continuing to happen. I understand what you mean though, as far as keeping all variables the same for the sake of testing.

The exhaust tips, surprisingly, don't have much in the way of residue on them. The car also doesn't seem to smoke excessively.
I also do not think you should have experimented with an engine additive. If you purchased a 6 year old car, from a private party "As is" then it would not really matter.

I suspect there is a problem with the engine unrelated to your driving habits. Hence the suggested testing.

IDK if you have legal (Lemon law) recourse against the Jag dealer who sold you this car. Read your sales contract to see if there are any clauses that prevent this.

If you can prove that you still burn oil, if drive 300 miles freeway, than you'll know a lot more.
If the issue goes away with the 300 mile freeway test....?? (I'm guessing it will NOT go away)

You burn 1 qt every 250 miles! I have heard nothing like this on MF over the years. I'd expect others, who do mostly short trips, to have had similar problems... if it was all driving habit.

Maybe not 250 miles but 1 qt/1k miles or something similar.

Do the test!

Let us know the results.
 
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