Red Line 4qt 5w40, 1 qt w50 Race - VW 2.0T FSI

[rhouse181]

Silicone and Lead numbers are headed in the wrong direction... Air filter has less than 5k miles on it, so the silicone is a bit surprising.

 

[Al]

Not very much silicon and ring wear (chromium is non-existent). I wouldn't get excited about it. What oil was used in the past??

Obviously Redline used the time before this.

 

[rhouse181]

First two fills were castrol syntec 5w40, next fill was motul xcess 8100 5w40, then motul specific 5w40... Previous Red Line fill was 4 qts 5w40 and 1 qt w40 race

 

[chubbs1]

Any reason fuel dilution was high in the first UOA? Do you drive short distances ie. city miles? The wear #'s look good I would not worry to much about that silicon either, could have been from changing the filter, a lot of air filters get better with more miles (dirt blocks up some of the tiny perforations). The only thing from making this a great report is fuel dilution. Keep monitoring and give it a good drive before the next OCI. Thanks for posting!

 

[rhouse181]

Yea, I was autocrossing frequently and adding a bottle of techron to 1/2 tank before every race... Completely stopped adding techron after the first fill due to the fuel dilution #'s

 

[saaber1]

Virgin silicon numbers for redline are about 16-18ppm (anti-foam additive) and very often we see it in the 6-11ppm range on UOAs. So no worries there.

Likewise for lead, previous UOAs showed 2-3 and a change to 4 is no big deal and may be within "noise" levels. Now if in the future you see a continuing upward trend, that would be different.

It would be interesting to see how straight RL 5w40 would do in this engine. Your UOA shows pretty amazing viscosity retention for this engine which chews up PAO-based 502 oils.

FYI here is a related post regarding shearing of a popular 502 oil:

Originally Posted By: saaber1
...For the 2.0 FSI, which is a fuel diluting DI engine, we have 24 M1 0W40 UOAs. 23 of the 24 samples, or 96%, show that it sheared out of grade (note that the one that is in grade had a kv100 of 12.53 and the cutoff is 12.5). Here are the numbers:

miles kv100 Flashpoint
5300 11.38 375
10000 11.57 365
5216 11.24 365
7110 10.86 350
7192 10.86 370
5900 10.32 320
9910 11.93 395
4576 11.83 390
3154 11.41 385
7682 11.06 375
3938 11.02 385
4277 11.08 400
4600 11.12 345
6086 10.47 335
4538 11.75 430
3587 10.62 375
5000 10.47 350
4800 11.59 375
3947 12.53 385
4125 11.28 375
5000 11.32 385
4695 11.55 360
4567 11.59 330
11.03 395

I am not saying anything good or bad about this oil, but Pablo's statement about shearing is accurate IMO, at least for this engine.

 

[rhouse181]

Thanks for the details saaber... Was betting that silicone was native to Red Line

 

[chubbs1]

Check out the redline 10w40 in the VOA section. It is a new analysis close to the top of the first page and I think thats the culprit of the higher silicon.

 

[Audi Junkie]

Redline's solvency always kicks out extra lead.

 

[Nathan]

Curious why you didn't get the TBN measured?
Do you know what the oil temps are in your car's engine?

Thanks for sharing. I just put RL 15w-40 in my turbo car. Good to see the positive results!

 

[rhouse181]

I'm running pretty short change intervals, didn't really think that TBN was my issue... Could pony up the extra cash on the next UOA if people are curious.

Unfortunately, I don't have an accurate oil temperature gauge in this car. But these motors run mid to high 200's when they are being pushed...

 

[Al]

Originally Posted By: Nathan
Curious why you didn't get the TBN measured?
Do you know what the oil temps are in your car's engine?

Right wrong or indifferent..... I never do TBN bc of the added cost. I worry mainly about antifreeze. If the wear is fine I don't care about it.