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#2478733 - 12/31/11 07:55 PM Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI
vwthingman Offline


Registered: 05/16/10
Posts: 72
Loc: Southern Illinois
Here is my latest oil report from Blackstone labs. They are good to work with, and quick on the results. I have filled the car with straight #2 diesel for about 85% of the fill ups when and where possible. Not much idling to speak of, but some city driving and short trips for sure. I have one more oil change left at 30K from V.W. then on to something different for oil changes. I might try Amsoil 5W30 Euro or stick with the Castrol if it stays good on the next report. If anyone is using something different with good results on this engine please let me know. Any recommendations and comments appreciated.

_________________________
U.S.A.F. 1984-1995
2010 TDI Jetta
2006 Lincoln Mark LT
2010 Toyota Rav4 3.5l
1974 VW Thing

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#2485477 - 01/07/12 09:14 AM Re: Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI [Re: vwthingman]
BMWTurboDzl Offline


Registered: 04/15/10
Posts: 1479
Loc: Atlanta,GA
Like [censored] said. Your engine is maturing so wear numbers should continue to drop regardless of oil. I think this is why "experts" say wait until you've but some serious miles on an engine before you start UOAs.
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#2485907 - 01/07/12 04:21 PM Re: Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI [Re: vwthingman]
dnewton3 Offline



Registered: 05/14/07
Posts: 5996
Loc: Indianapolis, IN
I don't know much about this oil, but it seems like the TBN really is low; where does it start? If you look at some other HDEO (15w-40 dinos) they will hold their TBN really well. I've seen UOAs with TBN only down to 7-8 after 10k miles, even though they only started around 10-10.5 TBN.

I realize the metals are break-in, so not much to worry about at this point.




Edited by dnewton3 (01/07/12 04:21 PM)
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

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#2486633 - 01/08/12 11:01 AM Re: Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI [Re: dnewton3]
charleshickman Offline


Registered: 12/27/06
Posts: 33
Loc: Alabama
Originally Posted By: dnewton3
If you look at some other HDEO (15w-40 dinos) they will hold their TBN really well.


For the newest edition of the TDI VW requires an oil that meets the 507.00 spec. All of these are low ash and 5w-30. The reaseon is, as I understand it, the particulate filter. VW specifies a 10k oci. I will not use anything other than a 507.00 oil, at least during the warranty period. The DPF will ultimately require replacement, when it gets full of ash. Projections I have seen say aroung 120k miles. Using a non spec oil could accelerate this.

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#2486838 - 01/08/12 01:55 PM Re: Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI [Re: vwthingman]
dnewton3 Offline



Registered: 05/14/07
Posts: 5996
Loc: Indianapolis, IN
I wasn't suggeting the use of 15w-40; my apologies if it came off like that. I was only showing an example of how some HDEOs hold their TBN well, with ULSD fuel. I was wondering where the TBN started for this SLX oil; I'm not familiar with it.
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

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#2488410 - 01/09/12 08:31 PM Re: Castrol SLX Pro LL, 10302 miles, 2010 VW Jetta TDI [Re: dnewton3]
Tim Offline


Registered: 03/15/03
Posts: 823
Loc: TX
Originally Posted By: dnewton3
I don't know much about this oil, but it seems like the TBN really is low; where does it start?



507 oils start between 5 and 6.


Tim
_________________________
2012 VW Jetta SE 18k miles
2012 VW Touareg Lux TDI 23k miles
2009 VW JSW TDI 6-spd Manual 172k miles
1998 Toyota Sienna 276k miles
1993 Land Cruiser

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