Ölzunahme - kleine Studie | Posts 16+

dieselmartin wrote:

I could offer our Golf 5 BLS as an alternative: Approximately 120,000 km, mostly highway driving - then it was ours . Since then, it's mostly been city driving, rarely a few kilometers on country roads, and very rarely the highway (Mother's Day trip to Paris - I'm not letting them scratch my Passat ). He achieves regeneration within just a few kilometers of city driving. And he doesn't use any oil thinning, because it doesn't add or remove any oil. My BMR consumes very little oil if you drive it properly. But I can forgive the GT1749VC and the 16 valves for that. m;

Well, I'd boldly claim that the "good initial period" of the first...
120,000 kilometers were crucial for maintaining the excellent condition of your engine.

Unfortunately, the previous owner/first owner had a completely different approach – they only drove very short distances.
Within a village of 100 houses, 2 years, 8,000 km. So, it was a bad start.
towards a long and reliable engine lifespan.

By the way, my recovery periods are usually quite short, most of the time.
"Is it possible to reduce a 12-18% incline to 0% over a distance of 10km?"

Herbert wrote:

Have you ever thought about the sealing rings of the PD elements? If there's a leak there, it will cause more oil to be released. Instead of looking at the study itself, just take a look at the corresponding measurement data blocks (13, 18, 23). hg Herbert

Hello Herbert, and anyone else who might be willing to kindly review the logs.
Here are two log files, one from 13, 18, and 23, and another from 1, 13, and 23.
(The second log refers to the one that was created first.)

hkss wrote:

Can you not log the oil temperature using VCDS?

Possibly in the instrument cluster?
The calculated value is precisely what is known as the loading coefficient.
Okay, I've strayed from the topic, but I'm still interested:
Why do the regeneration rates start with such different values, ranging from 12-18% to up to 45% loading?

RedR32 wrote:

hkss wrote: Can you not log the oil temperature using VCDS? Possibly in the instrument cluster? The calculated value is precisely what is known as the loading coefficient. Okay, I've strayed from the topic, but I'm still interested: Why do the regenerations start with such different values, ranging from 12-18% or up to 45% load?

You didn't read correctly!
For me, the 380km rule applies in 99.99% of cases because I almost never reach the 45% threshold.
For me, after 380 km, it's usually only 12-18%, and then, because of those 380 km, something happens.
active regeneration takes place.

Here's another log, 001 / 067 / 074, recorded during a high-speed drive on the highway.
Under full load, it's 1.39. What's more strange to me are the values at the end, when the engine is idling (3.0), or after giving it some gas while idling (2.99)?

What's the point of ignoring the soot levels and just focusing on a fixed mileage?

Hello everyone!

@Red:
/viewtopic.php?t=25806&highlight=800km

@HuBärtus:
Tip on the sidelines regarding the topic of "how to correctly read the oil level" with these... ridiculous dipsticks:
Always check the oil level in the morning before starting the engine for the first time, when the engine is cold. Pull out the dipstick once, read the level, and that's it. The vehicle should, of course, have been parked horizontally, or at the very least, always in the same spot and facing the same direction.
If I were you, I would do this first thing every morning, and regularly, in order to minimize the possibility of silly coincidences or reading errors (please don't take this personally; there are even VAG experts who can't do it anymore with this kind of equipment!).
When it comes to differences of +/- 0.5 liters, you can check it in between refueling, but you're talking about differences of +/- 0.05 liters, which you can definitely only assess after a minimum of 8 hours of standstill after the engine has been fully warmed up.

Best regards from Munich!

DieselBär30x wrote:

Hello everyone! When it comes to differences of +/- 0.5 liters, you can check it in between refueling, but you're talking about differences of +/- 0.05 liters, which you can definitely only assess after a minimum of 8 hours of standstill after the engine has been fully warmed up. Best regards from Munich!

Hello Dieselbear, thanks for the tip - I'll try it out tomorrow.

But the reason for starting the initial thread, and soon for the oil analysis.
In the lab, the fact was that after driving 4464 km, I had 0.4 liters more "oil" in the system.
Roughly estimated and observed, I've noticed this fact for over a year now - and...
After several oil changes, I've finally decided to document the process and provide more details.
Committed to analysis, and above all, to taking a closer look.

I'm going to have to get to the bottom of this matter...

I can only assume that with your comment above, you were referring to the fact that...
where I wrote that after removing 0.3 liters, there was still 0.1 left.
more than it had after the oil change. But that's actually what my...
Problem solved.

I previously set log levels of 13, 18, and 23, perhaps someone can adjust them.
"Values matter."

Quote:

But the reason for starting the opening thread and, soon, for the oil analysis. In the laboratory, the fact was that after driving 4464 km, I had 0.4 liters more "oil" in the engine.

Since this is undoubtedly not an isolated incident, I've put together some information about the main cause: /viewtopic.php?t=26454

According to that, 0.4 liters is already a critical amount of consumption after approximately 4500 kilometers. Removing the excess oil won't make things any better.

A "one-time" measurement taken in the field would be more informative than the simple sounding rod method.

Autoservice wrote:

Quote: But the reason for the initial post and, soon, the oil analysis. In the laboratory, the fact was that after driving 4464 km, I had 0.4 liters more "oil" in the engine. Since this is undoubtedly not an isolated incident, I've put together some information about the main cause: /viewtopic.php?t=26454 According to that, 0.4 liters is already a critical amount of consumption after approximately 4500 kilometers. Removing the excess oil won't make things any better. A "one-time" value measured directly would be more informative than the simple sounding rod method.

Well, I've read your post carefully.
What is considered a short distance?
My vehicle will be used 90% of the time, 7 days a week, as follows:
2 km from the residential area to the highway.
30 km on the highway at 100-120 km/h using cruise control.
5 km on a country road at 70 km/h after exiting the highway.
1 km through a residential area.
In the evening, we retraced our route. Mostly country roads with a speed limit of 80 km/h, using cruise control instead of the highway. I take care of errands and quick shopping trips (post office/bank/gas station, etc.).
I invariably (!!!) immediately after a trip like the one described above, and my wife can never persuade me to act differently:).
Maybe once a month I still go to Heidelberg to eat, which is 80km each way.
My car can't go any further without stopping. This rule has been in place for 2.5 years and 70,000 kilometers.
In the winter, when the temperature drops below 4 degrees Celsius, I always use the auxiliary heater until...
The water is at 80 degrees before I turn the ignition key - and there hasn't been a single exception to that yet - and not even when my wife was in a hurry !
Is my car now considered a problematic vehicle for short distances?

My fuel consumption has already increased to 0.4 liters per kilometer after only 4464 kilometers and 30 days!

How do you envision the process of measuring the oil level by completely draining the oil?
During the last oil change, a new oil filter was installed, and at the workshop, they...
They took 4.3 liters from my new, unopened 5-liter canister of organic oil (the oil that was delivered) and poured it in.
After that, I immediately removed 0.3 units because it reached the upper limit.
I don't really like it. This is image 1 in the thread at the very top.
Okay, so I've now drained 0.3 liters after 4464 km and 30 days.
Okay, here's the translation:

"Next time I change the oil, I'm going to collect the old oil, and also drain the oil from the filter."
"I still need to measure this - then I can calculate the total quantity."
extracted (2x) and drained.
How do I assess the oil filter after it has been used?
I suppose everyone will have their own opinion on how much oil a fully saturated filter can hold.
I think that, just like with the oil filter method, as well as with the dipstick method, the...
There's a minor inaccuracy.
Or?

That doesn't count as a short distance in my world.

Quote:

How do you actually envision measuring the oil by completely draining it?

Next time you drain the oil, measure the amount. Remove the oil filter beforehand. Let it all drain out completely.
Please account for the oil removed in the meantime. If necessary, you can weigh what remains on the oil filter after it has drained . I estimate about 100ml. All things considered, I think that's a bit more accurate.

In workshops, when there are problems with oil consumption, the measurement is generally done by comparison, as stated in every repair manual.

Quote:

That doesn't fall under "short distance" in my world.

Okay.

Under these conditions:

Quote:

The only thing I might consider possible is that I often drive too slowly, especially when using cruise control. Most of the driving (the majority of the total kilometers) is done on country roads at speeds of 76-80 km/h in 6th gear, with the cruise control engaged and the engine running at approximately 1300 rpm. Perhaps this will cause a large amount of diesel to be drawn into the oil.

usable oil temperatures, or. Exhaust gas temperatures are created,

Well, you're probably right about the low temperatures; they'll definitely affect my driving style.
not high. I've never heard the fan on the cooler running after the computer is turned off, not even during the hottest summer months.

The topic and the idea that the sealing rings of the PD elements might be broken.
Can I forget about it, or what?

Quote:

The topic and the idea that perhaps the sealing rings of the PD elements are broken, Can I forget about it, or what?

I think so. You can never completely rule it out.

You could temporarily adjust your driving style to something like "species-appropriate keeping."
Whether you experience success or failure should become relatively clear based on your driving activity.

Autoservice wrote:

Quote: The topic and the idea that perhaps the sealing rings of the PD elements are broken, Can I forget about it, or what? I think so. You can never completely rule it out. You could temporarily adjust your driving style to something like "species-appropriate keeping." Success or failure should become relatively clear based on your driving activity.

Tell an easily angered person to behave "normally" for a week.
or to a side sleeper, that they should sleep on their back for a week.
or to someone who drinks beer (specifically, only those who drink beer after work!), that they should abstain from it for a week.
Theoretically, none of the people mentioned have a problem with it – unfortunately, that's only theoretical, because...
No one will do it "just" for the sake of trying. - That's my personal belief!

I'm only satisfied when I get out of the car in the evening and see something like what's in the attached picture.
"I had a similar experience with my previous PASSAT (!!) which was also from 2007, with the exact same DPF, 140HP engine, and the exact same 6-speed DSG. I was often able to achieve much better fuel economy with that car. Achieving 3.8 or 3.9 liters per 100km was quite common. Now, with the Golf, I can never achieve that - and the Passat was actually heavier and had 225 tires on it, compared to the 205 tires I have on the Golf now." However, the tire brand and the specific tire model were exactly the same.
But now we're definitely getting off-topic. Especially since something like that doesn't...
It behaves the same way with every car, of course, which is obviously not a fair comparison - I understand that.
In short, I can't change my personality or character.
And I'm being completely honest here - I hope that doesn't come across as if I'm being stupid.

hkss wrote:

In short, I can't change my personality or character.

You're not the only one.
Please check/log the coolant temperature and, if possible, the engine oil temperature. The coolant regulators installed in these vehicles tend to wear out with age. A new coolant regulator might maintain the temperature at a higher level, which would also affect the oil temperature.