Ölzunahme - kleine Studie | Beiträge 16+

dieselmartin hat folgendes geschrieben:

I could offer our Golf 5 BLS as the opposite: Around 120,000 km, only highway driving – then it was perfect for us Now it's mostly city driving, with occasional trips of a few kilometers and very rarely on the highway (like for Mother's Day in Paris – I don't want to drive my Passat on the highway ). It can regenerate within a few kilometers of city driving. And it doesn't have oil dilution, as the oil level remains constant. My BMR consumes minimal oil when properly run. But I forgive the GT1749VC and the 16 valves. m;

Well, I would boldly claim that the "good initial phase" of the first 120,000 km was crucial for your now healthy engine.

However, this was not the case for my previous owner/first owner - extreme short trips within a 100-house village over 2 years, 8,000 km. This was a poor start to a desirable long engine life.

But, to be noted, - my recovery phases are also usually quite short, - usually 10km is enough to reduce the 12-18% to 0.

Herbert hat folgendes geschrieben:

Have you considered the seals of the PD elements? If there's a leak, it will require more oil. Instead of the study, simply look at the corresponding measurement blocks (13, 18, 23). hg Herbert

Hello Herbert - and others who would like to kindly review the logs.
Here are 2 logs from 13, 18, 23 and 1, 13, 23.
(the second log was the one that was made first)

hkss hat folgendes geschrieben:

Can the engine oil temperature be logged with VCDS?

Possibly via the instrument cluster?
Load factor, that's the term for the calculated value.
Okay, I've strayed from the topic, but I'm still interested:
Why do the regenerations start with such different values, at 12-18% or up to 45% load?

RedR32 hat folgendes geschrieben:

hkss hat folgendes geschrieben: Can't I log engine oil temperature with VCDS? Maybe in the instrument panel? Load factor, that's the exact term for the calculated value. Okay, I've strayed from the topic, but I'm still interested: Why do the regenerations start with such different values, at 12-18% or up to 45% load?

You didn't read correctly!
My 380km range control works at 99.99%, because I (almost) never reach 45%.
After 380km, it's usually only 12-18% for me, and then the active regeneration starts due to the 380km.

Here's another log entry: 001 / 067 / 074 during a fast highway driving at full throttle.

Under full load, the values are 1.39. What's strange to me are the values at the end, both while stationary (3.0) and after a few instances of pressing the accelerator while stationary (2.99)?

What sense does it make to ignore soot loading and focus solely on a stubborn number of KM?

Hello there!

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

@HuBärtus:
A tip on the topic of "correctly reading the oil level" for these... messed up dipsticks:
Basically, ALWAYS pull out the dipstick 1x (!) in the COLD state in the MORNING before the first engine start, read it, and that's it. The vehicle should, of course, be level or at least always parked in the same place and in the same direction.
In your situation, I would do this first and regularly every morning to be able to rule out silly coincidences or reading errors (please don't take it personally; there are VAG masters who can't do this either due to the dipstick material!!).
If it's about +/- 0.5L, you can also check it in between fill-ups, but you're talking about +/- 0.05L differences, which you can definitely only assess after at least 8 hours of engine warm-up.

Best regards from Munich!

DieselBär30x hat folgendes geschrieben:

Hi everyone! If it's about +/- 0.5L, you can also do it between fill-ups, but you're talking about +/- 0.05L differences, which you can definitely only assess after a minimum of 8 hours of engine warm-up. Best regards from Munich!

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

But the reason for starting the initial thread and also for the upcoming oil inspection in the lab was the fact that after 4464 km of driving, I had 0.4 liters more "oil" than before.
I have been observing this fact for over a year, after several oil changes, but now I have decided to document it and conduct more detailed analyses, and especially to look at it more closely.

Therefore, I will have to investigate the cause of this...

I can only guess that you meant the fact that I wrote that after draining 0.3 liters, I still had 0.1 more than after the oil change. But that's not really the issue.

I've posted some logs from 13, 18, and 23, maybe someone can comment on the values.

Zitat:

However, the reason for starting the initial thread and also for the upcoming oil check in the lab was the fact that I had 0.4 liters more "oil" after driving 4464 km.

Since this is definitely not an isolated incident, I have compiled some information about the main cause: /viewtopic.php?t=26454

According to this, 0.4L is already a critical value after approximately 4500 km. Removing the excess oil will not help either.

A "once-in-a-lifetime" measured value would be more informative than the purely estimated method.

[quote="Autoservice"]

Zitat:

However, the reason for starting the initial thread and soon for the oil inspection in the lab was the fact that I had 0.4 liters more "oil" after a 4464 km drive.

Since this will definitely not be an isolated incident, I have compiled some information about the main cause: /viewtopic.php?t=26454

According to this, 0.4L on approximately 4500 km is already a critical value. Removing the excess oil will not help either.

A "once-in-a-lifetime" measured value would be more informative than the purely estimated method.

Now, I've read your post carefully.
What is considered a short trip?
In 90% of cases, my vehicle is driven 7 days a week, following this route:
2km from residential area to highway - 30km highway at 100-120km/h with cruise control - highway exit - 5km country road at 70km/h - 1km residential area.
The same route back in the evening. Mostly country road at 80km/h and cruise control instead of the highway. I also always (!!!) complete errands and short trips (post/bank/gas station/etc.) in connection with such a trip as described above, and my wife can never convince me to do otherwise
Maybe once a month, I also go to Heidelberg for dinner, 80km each way.
My car doesn't drive any further than that. This has been the rule for the past 2.5 years and 70,000km.
In winter, if the temperature is below 4 degrees, I always turn on the auxiliary heater until the water reaches 80 degrees before I turn the key, - there haven't been any exceptions yet - and not even when my wife was in a hurry !
Is my car now considered a problem-short trip vehicle?

My 0.4 liter increase has already been achieved after 4464 km and 30 days!

How do you envision draining the oil completely?

During my last oil change, they replaced the new oil filter and at the garage, they took 4.3 liters from my new, original, sealed 5-liter container (supplied oil) and poured it in.
Then, I immediately removed 0.3 liters, because I don't want it to reach the top when full. This is Image 1 at the top of the thread.
So now, after 4464 km and 30 days, I removed another 0.3 liters.
If I then catch the oil during my next oil change and measure the oil from the filter as well - then I can calculate the total amount I have removed (2 times) and drained.
How do I assess the fully saturated oil filter then?
Everyone will probably have their own opinion on how much oil a fully saturated filter contains.
I think that, just like in the measuring method, there is a small inaccuracy here as well.
Or?

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

Zitat:

How do you envision draining the oil completely?

Next time, measure the amount after draining. Remove the oil filter beforehand. Let the oil drain completely.
Take into account the oil removed in between. You can also weigh what remains dripping from the oil filter if necessary: wink: I estimate around 100ml. Overall, I think this is a bit more accurate.

In workshops, when problems with oil consumption arise, it is generally measured by comparison, as stated in every RLF.

Zitat:

This does not fall under short trips in my area....

Correct.

Given conditions like these:

Zitat:

The only thing I might consider possible is that I usually drive -constantly with cruise control -too slowly. My trips to and from the store (which make up the majority of the total mileage) take place on the country road at 76-80 km/h in 6th gear at around 1300 rpm with cruise control. Perhaps this causes a lot of diesel to be washed into the oil.

I'm hoping to achieve usable oil temperatures, or exhaust gas temperatures:?:

Well - with the low temperatures, you're probably right, they won't get very high. I've never had my cooling fan run after turning off the engine, not even in the height of summer.

The topic and the idea that maybe the seals on the PD elements are broken, can I just forget about that - or?

Zitat:

The topic and the idea that perhaps the seals of the PD elements are damaged, can I then forget - or?

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

You could change your driving style to "appropriate posture" for a while.
Success or failure should become apparent relatively quickly.

[quote="Autoservice"]The topic and the idea that perhaps the seals of the PD elements are damaged,
can I then forget - or?

Zitat:

I think so. You can never completely rule it out. You could change your driving style to "appropriate posture" for a while. Success or failure should become apparent relatively quickly with your driving.

Tell a choleric person to behave "normally" for a week
or tell a side-sleeper to sleep on their back for a week
or tell a beer drinker (only those who drink beer at the end of the day) to abstain for a week.
Theoretically, none of the above would have a problem - unfortunately, only theoretically - because
no one would do it "just for a try". - My personal opinion!

I'm only satisfied when I go out in the evening and see something like what's in the picture.

However, I also had a VW PASSAT (!!) with the same engine (140PS) and 6-speed DSG, built in 2007, and I was able to achieve similar results. 3.8 or 3.9 was common. With the Golf, I can't achieve that - and the Passat was heavier and had 225er tires instead of the 205 I have on the Golf. However, the tire brand and model were exactly the same.

But now we're definitely getting off-topic. Besides, an MFA doesn't behave the same way in every car, so the comparison is obviously flawed - I understand that.

In short - I can't change my personality/way of driving.

And I'm being honest here - I hope this doesn't come across as if I'm stupid.

hkss hat folgendes geschrieben:

Kurzum - ich kann meine Charaktere/Wesensart nicht ändern.

You're not the only one.
Check/log the coolant temperature or engine oil temperature, if possible. The coolant controllers installed here start to fail with age. A new coolant controller might keep the temperature higher, which also affects the oil temperature.