2009 JSW 2.0 CRD TDI Castrol SLX ProLL03,8K Fe Sn

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Things are not looking good with the JSW. Iron per mile has gone up significantly and now tin is appearing as more than a trace. Potassium has dropped and sodium is minimal, so I'm not thinking coolant. Silicon is low, so shouldn't be air filtration. My wife's commute has changed from 32 miles a day mostly highway, to 15 miles a day city driving but I don't know that that can account for what I'm seeing. Factory power train warranty just ran out too.

My plan is to dump this oil early (5K ish) and try LiquiMoly Top Tech 4200.

Code:




All Samples Castrol SLX Professional LL03 5W-30 VW50700



Miles on oil 6,033 7,544 7,426 9,556 8,195

Miles on unit 6,033 22,684 30,110 39,666 47,861

Date 10/4/09 7/25/10 11/18/10 5/7/11 10/23/11



ALUMINUM 24 37 28 33 25

CHROMIUM 2 2 2 2 2

IRON 62 71 52 75 96

COPPER 32 10 7 9 8

LEAD 1 1 0 1 1

TIN 0 1 0 4 15

MOLYBDENUM 2 6 7 4 7

NICKEL 1 1 1 1 1

MANGANESE 6 2 1 1 1

SILVER 0 0 0 0 0

TITANIUM 0 2 1 1 1

POTASSIUM 61 63 48 41 28

BORON 2 1 1 1 4

SILICON 27 6 4 5 6

SODIUM 4 4 4 5 2

CALCIUM 1699 1756 1574 1515 1675

MAGNESIUM 7 8 7 7 5

PHOSPHORUS 697 806 748 736 809

ZINC 899 1280 962 899 1026

BARIUM 0 0 0 0 0



SUS VIS 210ºF 66.4 67.2 68.8 67.5 67.2

cSt @ 212ºF 11.98 12.22 12.64 12.30 12.20

FLASHPOINT ºF 440 420 425 400 430

Fuel
Antifreeze ? POS ? ? ?

WATER 0 0 0 0 0

INSOLUBLES 0.1 0.3 0.3 0.3 0.3

TBN 4.4 2.6 1.7 2.5
 
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It is not the oil, but you can try the LM TT. Silicon did go up but like you said that does not account for the other OCI's. Antifreeze is your problem I would suspect. You had a positive prior to this UOA and it seems to be getting worse. Fix the leak and I believe things can turn around.
 
Yeah, you've got antifreeze in every run....

Al is off the charts, and since there is no lead, I suspect your bearings are Al-based, which means you are seeing significant bearing wear, which ahppens with AF contamination....
 
Originally Posted By: gonesurfing
Things are not looking good with the JSW. Iron per mile has gone up significantly and now tin is appearing as more than a trace. Potassium has dropped and sodium is minimal, so I'm not thinking coolant.

I agree with all of that. Also coolant leaks don't usually improve and if the lab was Blackstone they don't use a reliable rest for antifreeze.

It looks like with that Castrol and the prior driving trend of longer commutes, 7000 miles is a good safe OCI. With current shorter commute, I can't say what's safe because the oil appears to have been used too long. It's too bad that low SAPS oils are required...they just don't last very long before acids do too much damage. You could blend in a quart or two of a synthetic API CJ4 oil to make an oil more suited to the engine and less suited to the after-treatment hardware.
 
These ACEA C3 low SAPS oils are not impressive. I'm trying an ACEA E6/E4/E7 Delvac 1 LE 5W30 - same P/Zn/S but much higher TBN.
UOA to follow soon (at about 13000mi).

Charlie
 
Originally Posted By: JAG
Originally Posted By: gonesurfing
Things are not looking good with the JSW. Iron per mile has gone up significantly and now tin is appearing as more than a trace. Potassium has dropped and sodium is minimal, so I'm not thinking coolant.

I agree with all of that. Also coolant leaks don't usually improve and if the lab was Blackstone they don't use a reliable rest for antifreeze.

It looks like with that Castrol and the prior driving trend of longer commutes, 7000 miles is a good safe OCI. With current shorter commute, I can't say what's safe because the oil appears to have been used too long. It's too bad that low SAPS oils are required...they just don't last very long before acids do too much damage. You could blend in a quart or two of a synthetic API CJ4 oil to make an oil more suited to the engine and less suited to the after-treatment hardware.


I spoke with Blackstone again, and verified that they do not test for glycol presence. They rely on sodium and potassium to determine if coolant is present. They also said tin is a tough element to measure with a chromatograph, as the intensity is low compared to other elements.



I'm not at all worried about Al based on other UOA's from this engine. The iron is 2x normal and tin is present when it should not be.
 
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The common-rail TDI engines commonly have potassium in them right from the factory. It's normal. Use a different lab that actually tests for the presence of glycol.

Metal wear does seem higher than normal. Perhaps try the Mobil 1 ESP oil? It's VW507. Around here, it's available at Pep Boys.
 
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