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#3383555 - 05/28/14 09:36 PM Could T6 be the best oil out there
Donald Offline


Registered: 03/21/04
Posts: 18529
Loc: Upstate NY
I will post my UOA numbers tomorrow but I just dumped the T6 in my Cummins diesel at over 18K. Almost no change from 11K when I just sampled and no change (iron went from 19 to 26). The TBN was 5.86 (no change from 11K). Viscosity 14.6 cSt @ 100C.

I'll give 1/3 of the credit to Cummins making a great engine and 2/3 to the T6 oil. I will cut open the Bosch D+ filter, it went the 18K.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#3383563 - 05/28/14 09:46 PM Re: Could T6 be the best oil out there [Re: Donald]
yvon_la Offline


Registered: 05/20/14
Posts: 1417
Loc: quebec canada
t6 0w40 is probably the best oil(I believe shell changed the formula a bit to meet the extreme)is there a voa of the 0w40 variety?
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Nissan versa note s 2014 total classic 5w30(qc.ca) drivework oil filter

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#3383591 - 05/28/14 10:24 PM Re: Could T6 be the best oil out there [Re: Donald]
Bandito440 Online   content


Registered: 02/13/12
Posts: 3662
Loc: NYS
T6 0w-40 hasn't been seen in the U.S. yet as far as I know.

I'm fond of the 5w-40 too. I've used it in all sorts of motors with good success. Maybe I'll put it in the Forester one day to see if there's any noticeable difference in fuel economy... and it'll give BITOG something to panic about.

Seriously though, shouldn't you be putting 0w-20 in that Cummins? :-)
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'14 Grand Cherokee EcoDiesel
Rotella T6 5w-40 & OEM filter

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#3383593 - 05/28/14 10:25 PM Re: Could T6 be the best oil out there [Re: Donald]
440Magnum Offline


Registered: 02/01/09
Posts: 8570
Loc: Texas
Originally Posted By: Donald
I will post my UOA numbers tomorrow but I just dumped the T6 in my Cummins diesel at over 18K. Almost no change from 11K when I just sampled and no change (iron went from 19 to 26). The TBN was 5.86 (no change from 11K). Viscosity 14.6 cSt @ 100C.

I'll give 1/3 of the credit to Cummins making a great engine and 2/3 to the T6 oil. I will cut open the Bosch D+ filter, it went the 18K.


T6 is definitely some good stuff. If I remember correctly it was one of the first applications for SOPUS' XHVI base oil, but I haven't kept up with its latest iterations.
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'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
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'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP

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#3383646 - 05/28/14 11:54 PM Re: Could T6 be the best oil out there [Re: Donald]
SilverC6 Offline


Registered: 10/03/08
Posts: 2903
Loc: Southeast
T6 is the stuff.

It's certainly the best oil for a RAM Cummins.

My 2013 RAM 3500 does well on it.
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'10 & '11 Camry 0W-20 PP
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#3383706 - 05/29/14 06:09 AM Re: Could T6 be the best oil out there [Re: SilverC6]
BISCUT Offline


Registered: 12/28/11
Posts: 1855
Loc: NewYorkistan
My Quad agrees.....:))
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2017 Sub OB M1 5-30 FRAM U(7k)



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#3383721 - 05/29/14 07:04 AM Re: Could T6 be the best oil out there [Re: Donald]
JHZR2 Offline



Registered: 12/14/02
Posts: 39789
Loc: New Jersey
No, its fake synthetic stealing dollars out of your pocket for some black, dino crude that they lie to you about. How could you ever put that stuff in your engine when its no different than Grp I base? Your engine just wont last unless it has PAO and POE because fake synthtic is just no good.

LOL

wink

P.S. Im liking the chevron Delo 5w-40 as well.

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#3383722 - 05/29/14 07:08 AM Re: Could T6 be the best oil out there [Re: Donald]
KD0AXS Offline


Registered: 11/13/12
Posts: 2243
Loc: Nowthen, MN
I don't own anything with a diesel engine, but I run T6 in all my OPE and ATVs. If I had a diesel engine, it would probably have T6 in it.
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2014 Hyundai Elantra Coupe 2.0 GDI-PUP 0W-40
2013 Jeep Wrangler JKU-PUP 5W-20
2005 Ford F-350 4x4 5.4-Maxlife 5W-20
2000 John Deere 425-Rotella T6

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#3383866 - 05/29/14 10:55 AM Re: Could T6 be the best oil out there [Re: Donald]
yvon_la Offline


Registered: 05/20/14
Posts: 1417
Loc: quebec canada
grou 4 oil that are good are rare,i aint even sure if the delvac1 le 5w30 is a group 4 oil(my favorite)
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#3383979 - 05/29/14 01:54 PM Re: Could T6 be the best oil out there [Re: KD0AXS]
Donald Offline


Registered: 03/21/04
Posts: 18529
Loc: Upstate NY
Originally Posted By: KD0AXS
I don't own anything with a diesel engine, but I run T6 in all my OPE and ATVs. If I had a diesel engine, it would probably have T6 in it.


Its not any diesel engine. Its a Cummins.
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#3384111 - 05/29/14 04:46 PM Re: Could T6 be the best oil out there [Re: JHZR2]
Garak Offline


Registered: 12/05/09
Posts: 21127
Loc: Regina, Saskatchewan, Canada
Originally Posted By: JHZR2
Your engine just wont last unless it has PAO and POE because fake synthtic is just no good.

LOL

wink

P.S. Im liking the chevron Delo 5w-40 as well.

Now that you mention it, Chevron's testing of the Rotella did indicate some PAO content, but not as much as in Delvac 1. So, that lets me be a snob, even though it doesn't amount to a hill of beans in the grand scheme of things. wink
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Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Baldwin B1402
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3384126 - 05/29/14 04:56 PM Re: Could T6 be the best oil out there [Re: yvon_la]
Clevy Offline


Registered: 11/11/10
Posts: 9783
Loc: Saskatoon canada
Originally Posted By: KD0AXS
I don't own anything with a diesel engine, but I run T6 in all my OPE and ATVs. If I had a diesel engine, it would probably have T6 in it.



The conventional 15w-40 is more shear resistant and far superior in my testing of it in shared sump equipment,unless trying to extend the intervals to the extreme.

Originally Posted By: yvon_la
grou 4 oil that are good are rare,i aint even sure if the delvac1 le 5w30 is a group 4 oil(my favorite)



Co-op here has a pao formulated 0w-40 for 28 a gallon. It's the best dollar for dollar diesel oil out there.
It's basically slightly more costly than conventional but is almost 100% pao. I think it's only got enough group 2 to attain additive solubility.
Iirc it's got a pour point of -68.
And 5 gallon pails are cheap.
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2006 Charger RT
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#3385420 - 05/31/14 07:12 AM Re: Could T6 be the best oil out there [Re: Donald]
fdcg27 Offline


Registered: 09/25/09
Posts: 13523
Loc: OH
Although we have no good comparisons, I'd say that T6 works very well in your truck's engine.
The UOA you posted is amazing given the miles run.
TBN is still strong with no adds and none of the wear metals look to be out of line.
How much oil does this Cummins hold?
Whatever, you certainly got your money's worth out of it.
_________________________
12 Accord LX 61K HGMO 0W-20
09 Forester 83K PU 10W-30
01 Focus ZX3 112K M1 5W-20
96 Accord LX 104K T5 10W-30
95 BMW 318iC 159K Delvac 15W-40

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#3386145 - 06/01/14 09:13 AM Re: Could T6 be the best oil out there [Re: Donald]
ShieldArc Offline


Registered: 03/16/13
Posts: 15
Loc: Ne
I remember in the 1990's a company here with Dodge Cummins pickups going 50k oil changes using LE 15w-40. They also used LE 10w-30 in the manual tranny's to save the bearings. Just saying....

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#3386149 - 06/01/14 09:19 AM Re: Could T6 be the best oil out there [Re: Donald]
bullwinkle Offline


Registered: 10/09/04
Posts: 6494
Loc: Cincinnati, OH, USA
I've had TDT in my '06 in my sig since 2011-the SAME OIL! I don't run many miles, but other than replacing a filter every 18 months or so & topping it off, the UOAs are still coming back "OK for continued use". The '02 HO 5.9 I had before this one (similar to the OP) was even easier on oil than the '06, would take 7-8K to even start to turn black! Now if the rest of the truck was as good...
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06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

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