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#3290208 - 02/22/14 04:55 AM VW 0w-30 506.01 - high oxidation level HELP
prescient Offline


Registered: 10/08/12
Posts: 14
Loc: Perth, Australia
Just had a sample back from the lab with a reading of 42 abs/cm which has been flagged as high - see sample details below.

Does anyone out there have an opinion on the VW range of oils. I am running a VW Touareg and was recommended (I guess for obvious reasons) to use the VW range. I have done just over 11,000km on this oil and am concerned that I have passed the oils useful limit - am I misunderstanding my report or have I really pushed it too far? Perhaps the lab is being way too conservative in marking 42 as high.

Any ideas much appreciated.

water <.1
calcium 2639
oxidation 42
lead 2
sodium 8
titanium 0
FTIR soot 0.1
cadmium 0
iron 19
fuel dilution
<1
magnesium
255
silver
0
boron
111
antimony
0
nitration
9
barium
0
molybdenum
3
phosphorus
1044
copper
2
tin
0
TBN
6.07
silicon
9
nickel
0
aluminium
2
vanadium
0
potassium
4
chromium
1
zinc
1257

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#3290235 - 02/22/14 06:06 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
fpracha Offline


Registered: 12/07/10
Posts: 534
Loc: MA
Did the lab not report the Viscosity reading?
Oil seems to be OK with plenty TBN reserve (additives) and moderate wear numbers... what's your total mileage on this vehicle ? Do you mostly travel on highway or short-trip this vehicle ?

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#3290249 - 02/22/14 06:33 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
tudorart Offline


Registered: 07/17/11
Posts: 197
Loc: Transylvania, Romania, EU
This lab flagged the ester content, which is common. It is my opinion that all 506.01 are ester/pao or ester/HC.It's a tough spec to meet. Toughest from VW actually : lowest wear with lowest viscosity/fuel economy HTHS.
Anyway viscosity should be higher if it's trully oxidized.

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#3290251 - 02/22/14 06:36 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
Pablo Offline


Registered: 10/28/02
Posts: 46916
Loc: Duvall WA - Pacific NW USA
What is the virgin oxidation number? A raw number like that without the virgin oil number is pointless. You are looking for a delta.

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#3290448 - 02/22/14 10:40 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
dparm Offline


Registered: 04/19/10
Posts: 12725
Loc: Chicago, IL
What particular oil is this?
_________________________
2011.5 BMW M3 saloon ZCP
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

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#3291274 - 02/23/14 02:58 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: Pablo]
prescient Offline


Registered: 10/08/12
Posts: 14
Loc: Perth, Australia
Originally Posted By: Pablo
What is the virgin oxidation number? A raw number like that without the virgin oil number is pointless. You are looking for a delta.
So Pablo I guess my question is really "does anyone know what the virgin oxidAtion reading should be for this oil?"
- thanks.

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#3292424 - 02/24/14 06:08 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: dparm]
prescient Offline


Registered: 10/08/12
Posts: 14
Loc: Perth, Australia
Originally Posted By: dparm
What particular oil is this?


It is VW 0w-30. I am hoping someone can give me an idea of what a likely virgin oxidation reading would be for this oil.

http://www.opieoils.co.uk/c-753-vw-50601-oil.aspx

Any help much appreciated.

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#3292635 - 02/24/14 09:59 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
OVERKILL Offline


Registered: 04/28/08
Posts: 30812
Loc: Ontario, Canada
I wouldn't be too worried. My oxidation was at 39 on my last UOA on the M5. That was with M1 0w-40.
_________________________
02 Expedition
06 Charger R/T
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#3293520 - 02/25/14 06:11 AM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
INDYMAC Offline


Registered: 07/15/06
Posts: 2338
Loc: Magnolia, TX
Originally Posted By: prescient
Originally Posted By: dparm
What particular oil is this?


It is VW 0w-30. I am hoping someone can give me an idea of what a likely virgin oxidation reading would be for this oil.

http://www.opieoils.co.uk/c-753-vw-50601-oil.aspx

Any help much appreciated.


Why don't you just test it yourself?
_________________________
2013 Toyota Tundra DC 4X4 5.7L FFV
2012 Toyota 4Runner 2WD SR5
2004 Honda S2000

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#3293915 - 02/25/14 01:16 PM Re: VW 0w-30 506.01 - high oxidation level HELP [Re: prescient]
edhackett Offline


Registered: 06/09/03
Posts: 1733
Loc: Sequim, WA
Testing it yourself is the only way to get a correct answer. You need it reported by the same lab that did your analysis, ideally on a virgin sample of the same lot number submitted with your used oil.

Ed
_________________________
Never attribute to engineers that into which politicians, lawyers, accountants, and marketeers have poked their fingers.

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