Beiträge von Kspic

Here you have a UOA with ravenol VMP USVO 5w30 from Dacia Duster 1.5 dci .
This car is not a normal Dacia / Renault car. It have upgraded suspension and good tyers for offroad .
The owner uses it daily on bad roads and the offroad level is extreme .
It is also used on Romanian city hard conditions.
When the car is used on normal roads, even BMW M drivers don't drive like this. Speed , adrenaline with Dacia sounds crazy but this car is prepaired to be used like this .

The fuel imput was not tested here in this UOA but in the past the fuel level was verry low.
You can see here that a good oil even with extreme drive can offer lower wear at higher number of km, at higher hours of engine work.

This Dacia also have stage 1 and the dpf is also fine.

New engines with modern DPF are not ready to deal with lower emisions standards . This is why we find this problem on new engines UOA.
If You stop your car while the engine is regenerating your dpf You will have a lot of fuel in that oil after 5-6 fails like this.
After the car finished the regeneration process You have to drive the car for 10-20 km at least.
So.... A diesel engine , modern one like yours is not a great deal. Better fuel consumption but more problems compared to petrol engines .

Every oil is killed by diesel fuel.
Modern engine additives know how to fight with diesel and biodiesel but at 7% diesel.... This fight is over .

There is a problem with your car or your drive style . At 5k km 2.2 diesel from Mazda have lower fuel in the engine oil .

USVO additives are used to treat the oil not the fuel. So it is normal to see this viscosity at 100 * C
If the oil was killed by the fuel you would see lower viscosity at 100 * C.

Diesel engine is nice. But CR injection with modern DPF and low distance drive are not ok. The engine will fight to regenerate the dpf and will also kill the engine oil in the same time .

Ravenol VST is one of the best 5w40 A3B4 API SN.
The only PAO approved 5w40 A3B4 and the only engine oil with tungsten additives and approvals.

The VST without USVO and without Tungsten was going thinner . But we forget that the oil was PAO and the HTHS for a PAO is bigger than for VHVI.
So, If the PAO VST have lower viscosity for 100 C than other VHVI oils in UOA it is not a sign of lower protection .
The oil viscosity is one and the additives are other thing. You are not protected by the higher viscosity ! You are peoteted by a good base oil and a good addive package .

VST had lower viscosity base oils with VI improvers . When those additives are affected the oil viscosity is going down.
During this proces the wear was great becaude the oil preasure in that engine was good.
A good oil preasure + good base oil + good additives = good engine wear protection .

Every car is special because every car have it's own problems . Fuel contamination, bad filtration .... Etc. The owner of the car can make a diffrence in the final wear that we see on the UOA.
No engine oil will show 0 ppm wear in UOA after 10k - 15k km. And no engine oil will offer the same wear in all cars because we are different and we drive as we want .

I see fuel, Na and K.
This combo is not good and the level of the Na, K and Fuel is bigger than it was with Addinol.

400 ml of oil in 2k km is not normal for this engine . Something went wrong there .

This oil is like a 8k km oil now. I can say that the oil with this UOA say that he spent more than 10k km in that engine ( Na+K + Si + Fuel )
Wear of Al and Cu is good.
Fe is a little high but we always forget that the wear in the oil is not made by the oil . It is made by the way we use the car.

VST is a really good oil tested here on oilclub de in RS6, RS3 ( 8v and 8pa ), S5 , S3, R32 Golf, M135i, and more super cars. It always did a good job.
Here on this 1.4 turbo i see a lot of bad words and i don't understand why ? The engine have more contamination than Addinol , it was used in winter time and the wear is made by the way the owner used the car .

VMP was without boron and MOS2.
After that it had Mo and Boron - 2016 VOA
Now USVO is with tungsten , Mo + B

This is not a new VMP. It SMP or WIW III or a very old VMP.
V.100 and HTHS is fine because wear for Fe and Cu is good so this is not the problem.

We can see potassium in the engine oil . It is a sign of antifreeze. Not good at 100 ppm + water 0.1% for the second UOA. Now at 35 ppm it is also not good.
Si at 22 ppm is not very bad.

The second UOA have 5ppm Na + 95 ppm K + 0.10 ppm water. This is the antifreeze in the engine oil.
Fuel is a little high, but with antifreeze...... you can not play the game.

Zitat

The effects of antifreeze contamination are a rise in the oil’s viscosity or a thickening of the oil (as witnessed), the formation of gels and emulsions, acid formation leading to corrosion, premature filter plugging and all-around poor lubrication. In fact, glycol contamination is reported to be the No. 1 cause of premature filter failure in a diesel engine and overall poor lubrication.

Zitat

Another potentially huge problem to be aware of is the reaction of calcium sulfonate (engine oil detergent) with ethylene glycol (engine coolant). When these fluids are mixed, a chemical reaction ensues that produces small abrasive balls as a byproduct. These "oil balls" are between 5 and 40 microns in size. The significance of the size is that this is also the size of the fluid film. In essence what is produced is a sandpaper ball that fits perfectly into the clearance between the engine’s internal components. The results are severe wear and eventual failure.

Test the oil again at 8000 km. You should also use VMP USVO 5w30.

Wear is nice.
But a bigger engine have more oil so you can not compare this engine with the 1.2 .

This is a new engine so the wear is high and it is also normal. The next oil will show almost the real and normal wear.

Good UOA.

Mobil 1 0w40 FS have HTHS 3.6 mPa*s . So it will not give lower wear for piston walls/rings compared to a 5w30 C3 like VMP
Also Mobil 1 New Life 0w40 is not the best for 3.0 TFSI. Compared to VST, New Life offered higher wear in 3.0 TFSI.

Iron is high now. Aluminum, Copper are good so the additive package is good enough to protect the engine. But because of the iron, I think this oil is to thin for this engine and a better oil is a C3 / A3B4 5w40.
On Audi S5 3.0 TFSI Ravenol VST was better RAVENOL VST 5W-40 - 8159km - Audi S5 Sportback 3.0 TFSI

Becauase of the fuel contamination you should change your oil at maximum 8000-10,000 km.

You can also try Ravenol VMP 5w30. It is a good engine oil for high fuel contamination.

Nice. Ceratec made this oil better for your GTI. Wear materials are low in this UOA and the engine works fine. You can also use this oil for about 6000-8000 km

About the engine we don't say that îs new ?
In every new engine we can find high level of wear metals .

New engine + 4% diesel + 11.6 k km..... + High Si in the engine oil.
For me the wear metals are normal.

Yes the TBN is somehow different. In TDS we can see TBN under 8.

Wear ia good, but for the off road, a FE engine oil is not the best.
I think a 5w40 C3 will solve the high fe wear. - valvoline Synpower MST C3 or Ravenol VMO 5w40

I don’t know how to speak German, so i will write in English.

I don’t think that we can talk about agressive drive because the fuel in the oil is not so big. If we watch Rowe Synth RS 0w40 we can see the same fuel dilution and mouch lower wear.

Not every engine oil have the same additives and in my opinion Aral 0w40 is not good for this engine.With Ravenol VST 5w40, Rowe Synth RS 0w40 or Redline 5w40 we can see low wear.

Maybe in Germany Aral is good, but in Romania when we buy Aral we recive a low quality engine oil .