Ölzunahme - kleine Studie | Posts 16+

dieselmartin wrote:

As an alternative, we could offer our Golf 5 BLS: 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 take my Passat for that ). He creates a sense of rejuvenation within just a few kilometers, even within a single city trip. 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 really push it. But I can forgive that to the GT1749VC and the 16 valves. 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 experience - they only drove very short distances.
Within a village of 100 houses, I cycled 8,000 km in 2 years. So, it was a rather slow start.
towards a long and reliable engine life.

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. Instead of looking at the study, simply check the relevant measurement blocks (13, 18, 23). hg Herbert

Hello Herbert, and anyone else who might be willing to kindly review the logs.
Here are 2 logs from the sequences 13, 18, 23 and 1, 13, 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 as high as 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 it happens for me because of those 380 km."
active regeneration takes place.

Here's another log, 001 / 067 / 074, recorded during a high-speed drive on the highway, pushing it to the limit.
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 "correctly reading the oil level" with these... ridiculous dipsticks:
Always check the oil level in the morning before the first engine start, when the engine is cold. Pull out the dipstick once (!), read the level, and that's it. The vehicle should, of course, be parked horizontally or at least always in the same spot and orientation.
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 idle time for the engine, which must have been fully warmed up beforehand.

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 idle time for the engine, which must have been fully warmed up beforehand. 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 engine.
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 I'm talking about."
Problem solved.

I previously set the logs to 13, 18, and 23, perhaps someone can adjust them.
"What do you think?"

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 will undoubtedly not be an isolated incident, I have put together some information about the main cause: https://community.dieselschrauber.org/en/viewtopic.php?t=26454

According to this, a consumption of 0.4 liters over approximately 4500 km is already a critical value. Removing the excess oil won't improve the situation.

A "one-time" measurement taken in the field would be more informative than simply using the 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 will undoubtedly not be an isolated incident, I have put together some information about the main cause: https://community.dieselschrauber.org/en/viewtopic.php?t=26454 According to this, a consumption of 0.4 liters over approximately 4500 km is already a critical value. Removing the excess oil won't improve the situation. A "one-time" value measured in reality would be more informative than the pure 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.
Highway exit.
5 km on a country road at 70 km/h.
1 km in a residential area.
In the evening, the same route back. Mostly country roads with a speed limit of 80 km/h, using cruise control instead of the highway. I also take care of errands like grocery shopping and short trips (post office/bank/gas station, etc.).
I invariably (!!!) always do the following after a trip like the one described above, and my wife can never persuade me to do otherwise:).
Maybe once a month I'll still drive to Heidelberg for dinner, which is 80km each way.
My car can't drive continuously for more than that. That's been the rule 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 oil (which was delivered) and poured it in.
After that, I immediately took out 0.3 because it was above the upper limit.
I don't really like that one. That's picture number 1 at the very top of the thread.
Okay, so I've now taken out 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."
"Let me measure it again - 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 a clogged oil filter, as well as with the dipstick method, the...
There's a minor inaccuracy.
Or what?

In my world, that doesn't qualify as a short distance.

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 everything drain completely.
Please factor in 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. Overall, I think this is a bit more accurate.

In workshops, when dealing with oil consumption issues, measurements are generally taken by comparison, as stated in every repair manual.

Quote:

That doesn't fall under the category of 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. The trips to and from work (which account for the majority of the total mileage) are primarily on country roads, where I drive at 76-80 km/h in 6th gear, with the cruise control engaged, at approximately 1300 rpm. Perhaps this will cause a large amount of diesel to be washed into the oil,

resulting in usable oil temperatures, or exhaust temperatures, .

Well, you're probably right about the low temperatures; they'll definitely affect my driving style.
It wasn't running. I had also never heard my fan on the cooler running after being turned off, not even during the hottest summer months.

The topic and the idea that the sealing rings of the PD elements might be damaged.
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."
Success or failure should become relatively clear based on your driving experience.

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 experience.

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 only drinks beer after work, that they should abstain 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 a 2007 model with the exact same 140HP engine and the exact same 6-speed DSG transmission. I was often able to achieve much better fuel economy with that car. Achieving 3.8 or 3.9 liters per 100 kilometers was quite common. With the Golf, I can never achieve that – and the Passat was actually heavier and had 225-size tires instead of the 205-size tires I have on the Golf now. However, the tire brand and model were exactly the same."
But now we're definitely getting off-topic. Besides, something like that wouldn't happen.
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.
"Could you 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."