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#4491476 - 08/17/17 10:02 PM Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T
GermanAutohaus Offline


Registered: 04/25/16
Posts: 100
Loc: Chattanooga, TN
This UOA is for a 2013 Audi A6 3.0T Supercharged running Motul 8100 Xcess 5W40. 11,757mi mile run. Vehicle is driven daily with a 25/75 mix of city/hwy driving. First UOA was with Rotella T6 5W40 (old CJ-4). Second and most recent was with 8100 Xcess 5W40. Immediately after the recent UOA it was discovered that the customer had a failed PCV causing excessive oil consumption and fuel trimming. The PCV was replaced along with performing an intake port carbon cleaning with a walnut blaster.


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#4491480 - 08/17/17 10:12 PM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: GermanAutohaus]
FlyNavyP3 Offline


Registered: 07/04/16
Posts: 1372
Loc: Jacksonville, FL
This engine seemed to shed less iron on the T6. Any reason for no longer using the T6? Wear metals seem high for 4 quarts of makeup oil.

Thanks for posting these reports I always enjoy seeing them!
_________________________
Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander

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#4491568 - 08/18/17 04:00 AM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: GermanAutohaus]
zeng Offline


Registered: 09/01/15
Posts: 2095
Loc: Malaysia
Non-spec Rotella T6 5W40 CJ4 performs 'better and superior' than an in-spec VW Motul Xcess 5W40 ?
Isn't that interesting ?

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#4491617 - 08/18/17 06:48 AM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: GermanAutohaus]
KL31 Offline


Registered: 06/03/16
Posts: 541
Loc: South OZ
Moly/Zinc/Phos/Mileage are higher with Rotella and iron ppm is lower. Illuminati confirmed... or just natural variation of UOA/driving style/weather/etc? Hard to say but I'd be running Rotella again for more comparisons and savings over that pricey Motul!


Edited by KL31 (08/18/17 06:48 AM)
_________________________
1995 MX-3 - KLZE swapped
Shell Helix Ultra 5W40
Wix 51356

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#4491622 - 08/18/17 07:02 AM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: KL31]
GermanAutohaus Offline


Registered: 04/25/16
Posts: 100
Loc: Chattanooga, TN
Originally Posted By: KL31
Moly/Zinc/Phos/Mileage are higher with Rotella and iron ppm is lower. Illuminati confirmed... or just natural variation of UOA/driving style/weather/etc? Hard to say but I'd be running Rotella again for more comparisons and savings over that pricey Motul!


We sell manufacturer-approved 8100 Xcess 5W40 at only ~$1 more a liter than the Rotella. If T6 carried VW, BMW, Merc (ect) approvals, we'd be using it again in a heart beat. T6's CK-4 update from CJ-4 also throws another curve ball.


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#4491847 - 08/18/17 11:21 AM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: GermanAutohaus]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 921
Loc: Oregon
Originally Posted By: GermanAutohaus
We sell manufacturer-approved 8100 Xcess 5W40 at only ~$1 more a liter than the Rotella. If T6 carried VW, BMW, Merc (ect) approvals, we'd be using it again in a heart beat. T6's CK-4 update from CJ-4 also throws another curve ball.


Any experience with the new CK-4 version?
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4492275 - 08/18/17 08:19 PM Re: Motul 8100 X-cess 5W40, 11,757mi, '13 Audi A6 3.0T [Re: 1JZ_E46]
GermanAutohaus Offline


Registered: 04/25/16
Posts: 100
Loc: Chattanooga, TN
Originally Posted By: 1JZ_E46
Any experience with the new CK-4 version?


Not yet. The UOAs I got back show a decrease in zinc and phos and a total lack of moly. Boron and viscosity went up a tad.

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