Motorsilk UOA

[jonny-b]

Hi, again.
Just some words about things that can have affected this testing: I use a K&N airfilter, and this filter have not been cleaned since May 2006(some 45000 miles).
I have been using the same type of oil, RP5/30. The UOA I did in October 2006, also had a maintenance dose of Auto-Rx .
Another thing I should have done better, is the sample taking, because I only let the engine idle some 4-5 minutes before I took the sample now in May. Don't know if this will make much difference.
The results:

Date May 13-2007 October 03-2006
Total miles 112181 96200

Fe Iron ppm 115 104
Al Aluminium ppm 16 39
Cr Crome ppm 4,5 4,1
Cu Copper ppm 20 14
Ni Nickel ppm 0,0 1,9
Pb Lead ppm 3,3 1,8
Sn Tin ppm 0,0 0,0
Si Silisium ppm 64 54
Na Natrium ppm 12 81

FTIR4 DIES/JETA1% I.R NO NO
FTIR3 Water % 0,34 FTIR2 Glycol I.R NO NO
FTIR1 Soot % 1% 0,8%
FTIR5 Nitration abs 11 11

I am very satisfied with the reduction in Aluminium and Nickel, but not the Fe increase.
When you compare this UOA with a 3000 mile UOA, you must divide the wear numbers with 5,3 to get simmilar ppm for every mile driven.

I paid $101 for this simple UOA here in Norway, this is why I don't do this more often.

My next UOA will be free and they will also test TBN, since they don't have been testing this oiltype before(Synlube).
I will be doing this test(VOA) in the middle of June.

 

[Tempest]

So you have 24K miles on 5W30 RP??

You are brave. Any viscosity information from the UOA?

I would dump the K&N ASAP. The SI is quite high. The wear metals are also quite high. Having all this wear debris/abrasive floating around in the oil can only make for more wear. See, oil does get dirty.

The additive does not appear to have done much. A single UOA is not enough to make a judgement on the Al.

 

[Cup of Joe]

This needs to be in the UOA section that way it could be found much easier by someone doing a search for motorsilk or RP.

 

[SargeGTO]

This the the "oil for life" Synlube stuff?
What kind of engine is this?

 

[Cup of Joe]

Correct me if I am wrong but I believe this is RP with motorsilk and his next sample is synlube!? Synlube doesn't even have a 5w30 if I remember correctly from the 90's website and creepy music.

 

[SargeGTO]

LOL...yeah that is why I ask so I wouldnt have to go "there" to find out

 

[unDummy]

jonny-b, give the simple details on these UOAs.
Mileage run on both oils, or was it the same oil?
Do you have the PPM's for the additives in the oil? viscosity?

 

[jonny-b]

Tempest, actually I have only 15981 miles on it(112181-96200=15981), but I am going to change it when it has some 18000miles on.
I am going to dump the K&N, since I believe this is causing some unneccessery dirt. I guess this wouldn't have happened if I were using Synlube

 

[Tempest]

Your right about the numbers...must of had a brain fade there. Still WAY longer than I would run it. Any viscosity info? How long was the first run of RP?

Synlube...well that's for another thread...

 

[jonny-b]

Undummy, it was one oil-sample taken October 3rd 2006 and one oil-sample taken Ma 13th 2007. In October, the total miles on the car was 96200, and in May it was 112181(when I took the sample, but the oil isn't changed yet).
Mileage on the first sample was 16159 and the one now in May was 15981. I don't have any numbers for the viscosity and additives, since this is the "cheap" test.

 

[mechtech2]

thank you for testing Motorsilk - I was curious about it.
So far, there doesn't seem to be much real difference.
But how about the performance and gas mileage? Any changes?

 

[deepsquat]

you might as well just dump iron filings in your crankcase if you want to run it that long

wow!
104ppm..

 

[unDummy]

Yep, 15k OCI's is pretty high. And, it shows in the iron. TBN would've been interesting. Some RP UOA's don't show great TBN retention.
Look at moisture level. Anyone think engine is rusting inside? Moisture+no TBN+heat+blowby crud=????
Soot is high and possibly scratching away at engine. Bypass filtration is desperately needed if you don't want to change your oil more frequently.

Many engines will take plenty of abuse. I prefer to keep mine running perfectly for as long as possible. I'll stick with reasonable and regular oil changes.

Concerning Synlube, the 0w40 and 5w50 should work better. A thicker oil should will simply protect against all that soot. Synlube sells high-TBN top-off oils when topping off for consumption or filter changes.

 

[jonny-b]

Mectech,(most) the Aluminium from this engine is coming from pistons and bearings. The reduction is 59%. I considder this to be rather good, especially when you considder the fact that I were using ARX in my first UOA, but not in this last one. This means that Motorsilk must have done something.
The Na(think you call this Sodium, while we call it Natrium), is down from 81 ppm to 12 ppm. This is a 85% reduction.
The Nickel is reduced by 100 %.

 

[jonny-b]

In regards to performance and fuelconsumption: Fuelconsumption may be down some, but since it is less than 5%, I will not make any conclutions. In regards to performance and noice, it idles smoother and seem to have slightly better performance, while making less noice. I would still recommend this Motorsilk, because it seem to make a difference.

 

[GMorg]

If you are going to conclude that Al is down 59% and Ni is down 100%, then you might as well comment on Cr increasing by 10%, Cu increasing by 43% and lead increasing by 83%. Would you conclude that Motorsilk causes Pb wear to nearly double? Without knowing the variation in the assay, I can't conclude that anything increased or decreased.

 

[jonny-b]

Since the Al was the most critical(should not be more than 30ppm with this mileage)and is coming from bearings and pistons, this reduction was the most pleasant. The Cr, Cu and Lead was not in a critical range. It just made the engine work better, it seems.

 

[SargeGTO]

I'll ask again. What kind of car/engine is this. I would like to compare UOA's if possible and it would be nice to know what kind of engine this is.

 

[GMorg]

SargeGTO, I clearly don't know the answer to your question, but in previous threads jonny-b was using Motorsilk in a 2003 Mercedes diesel. I don't know the engine. However, 112K miles seems like a lot of driving for only 4 years.

 

[SargeGTO]

Let me go digging for some comparisons....I wonder if this car is a turbo? Oh well....here is something interesting ....