Recent Topics
Proud of My Dad
by Phishin
10/31/14 07:06 AM
google earth does not show Panoramio photos
by Trav
10/31/14 07:06 AM
Philips 9012 in '05 Corolla?
by lukejo
10/31/14 06:16 AM
new GM 4.3L V-6
by used_0il
10/31/14 03:02 AM
2015 Accord Hybrid
by Ewag2983
10/31/14 02:24 AM
Sausage
by Charlie1935
10/31/14 12:00 AM
Storing Car in Storage Facility
by cutlassvillager
10/30/14 11:51 PM
04 santa fe 3.5l, info re oil/miles is unknown
by chado_skins
10/30/14 11:47 PM
Mobil 1 0w-40 OK for Winter in VQ35HR?
by cutlassvillager
10/30/14 11:29 PM
Pardner Protector
by buck91
10/30/14 10:54 PM
Vortec 4.3l v6 oil recommendation
by gmgoodwrencher
10/30/14 10:53 PM
Oil change or wait??
by Rolla07
10/30/14 10:38 PM
Newest Members
Thourun, Zach72, SandCastle, ymc226, redwoods73
51758 Registered Users
Who's Online
81 registered (afoulk, badtlc, A_Harman, 3311, 943kgt, 86cutlass307, 8 invisible), 1057 Guests and 147 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51758 Members
64 Forums
221448 Topics
3501967 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#3435051 - 07/25/14 08:28 AM Rotella T6 5w-40, 13,015 mi., 2003 Jetta ALH
R80RS Offline


Registered: 06/05/13
Posts: 624
Loc: Wisconsin USA
The vehicle in this report is my primary commuter, and sees 90 to 120 moderate highway miles daily, with longer interstate trips from time to time. It never sees trips of less than 15 miles.

The oil filter in this interval was a Mann HU 726/2 X.

The 1/2-quart of make up oil was added about halfway through the interval, or about 7,000 miles before the sample was taken. Total sump capacity is 4.8 quarts.

For some historical context, the oil in the column dated 10-6-13 was T6 and in the 3-9-14 interval it was Amsoil HDD 5w-30. I notice an increase in some additive elements (Zn, P, Mg, allowing that the increased Ca may be carryover from the Ams HDD) between the T6 used in the 10-6-13 interval and this one. Did SOPUS fortify the add pack of T6 or is something else going on?

What's the consensus opinion on the lead level Blackstone flagged? How often do these trends resolve themselves (trend down) versus indicate a serious problem?

Any other comment or insight is welcome!

_________________________
2004 F150 186k mi. Amsoil XL 5w-20, Fram Ultra
2004 Freestar 234k mi. M1 HM 5w-20, Napa Platinum
2003 VW Jetta TDI, 151k mi. Rotella T6 5w-40, Mahle

Top
#3435072 - 07/25/14 08:54 AM Re: Rotella T6 5w-40, 13,015 mi., 2003 Jetta ALH [Re: R80RS]
A_Harman Online   content


Registered: 10/01/10
Posts: 4322
Loc: Michigan
A lead reading of 8 is not by itself a concern. If it's a spike, it's not a very significant one. Watch how it trends in subsequent UOA's.

You should be able to extend the OCI's significantly judging by the TBN of 5.6 at 13k miles. RT6 starts with TBN of 10.6, and Blackstone recommends oil changes at 1.0, so there is still a lot of life left in that oil. Try extending the next OCI to 16k. I think it could even go much further than that.


Edited by A_Harman (07/25/14 08:55 AM)
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

Top
#3435169 - 07/25/14 10:15 AM Re: Rotella T6 5w-40, 13,015 mi., 2003 Jetta ALH [Re: R80RS]
webfors Offline


Registered: 06/06/06
Posts: 3668
Loc: Ottawa
Nice report. Strong FP, TBN, maybe some thickening going on with the visc?

If you're lead continues to trend with longer OCIs I would throttle back to ~12k.
_________________________
08 Forester 5mt, AFE 0w30, XG7317
13 Dodge GC, VWB 5w20, Mopar OF
13 Suzuki SFV650, OEM 10w40, OEM OF
All small engines; RT5 10w30

Top
#3435249 - 07/25/14 11:54 AM Re: Rotella T6 5w-40, 13,015 mi., 2003 Jetta ALH [Re: R80RS]
scurvy Offline


Registered: 02/19/07
Posts: 2275
Loc: Chicago IL USA
T6 has always been IMO the best bang-for-the-buck TDI oils for non-CR engines. Great looking report, you should consider running it even longer.

Lead is a minor spike, might be from a particle streak through a bearing. I wouldn't worry about it unless it continues to trend upwards over the next few UOAs.
_________________________
You are entitled to your own opinion but not your own facts.

06 VW Golf TDI - M1/Delvac 1300 7.5w40ish, HU726/2x, EaBP90
12 Mazda 5 - M1 0W20, FL910S

Top