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#4437067 - 06/20/17 08:08 PM Why are Rotella T5 & T6 so volatile?
fdcg27 Offline


Registered: 09/25/09
Posts: 15699
Loc: OH
I've been surprised to learn how high the NOACK test percentage of mass lost is for both T5 and T6.
Even PP in the 0W-20 grade puts either of these HDEOs on the trailer when it comes to percentage of mass lost in the NOACK test.
Can someone help me to understand that the obvious conclusion that these oils are made of inferior basestock blends is wrong?
_________________________
17 Forester 12K MSS 0W-20
12 Accord LX 86K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i

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#4437140 - 06/20/17 09:37 PM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
Chris142 Offline


Registered: 06/05/03
Posts: 16820
Loc: Deplorable in apple valley, ca
I read about these oils being burned off faster than others
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40

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#4437173 - 06/20/17 10:12 PM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
Cressida Offline


Registered: 10/16/02
Posts: 474
Loc: Joplin
The T5 in 10w-30 is showing around 13%. Here are the specs:

http://www.pqiamerica.com/June%202014/shellrotellatT51030.htm

I purchased a couple of gallons of this and am planning on using this oil in a couple of my old cars, but now wonder if I should not have made that choice for gasoline engines...

From my notes, the T5 has a HTHSV of 3.5cP (in 10w-30) and is comprised of group II/III base - no PAO.


Edited by Cressida (06/20/17 10:16 PM)

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#4437329 - 06/21/17 07:31 AM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
TinyVoices Online   content


Registered: 09/12/16
Posts: 481
Loc: Vienna, VA
I have heard the opposite. T6 is praised in the Subaru and turbo car community as an oil that prevents burning and helps condition turbo seals. Give t6 and Subaru a Google and you will see what I'm talking about.
_________________________
1993 Toyota MR2 Hardtop N/A - 157k miles - Valvoline Max Life 5w30
2006 Toyota Matrix XR AWD (Fiancee) - 126k miles - Valvoline Max Life 5w30

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#4437341 - 06/21/17 07:47 AM Re: Why are Rotella T5 & T6 so volatile? [Re: TinyVoices]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
Originally Posted By: TinyVoices
I have heard the opposite. T6 is praised in the Subaru and turbo car community as an oil that prevents burning and helps condition turbo seals. Give t6 and Subaru a Google and you will see what I'm talking about.


I heard the same thing, but then I saw actual test results on the PQIA website...unfortunately, these are from 2014 and I believe that T6 has been reformulated since then. This report was fairly new when I first looked at T6.

http://www.pqiamerica.com/June%202014/shellrotellat6.htm

Doesn't mean that T6 can't be good oil for a turbo Subaru, but that is just plain not an impressive NOACK loss result there.
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4437385 - 06/21/17 08:46 AM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11970
Loc: N.H, U.S.A.
Never had a relationship between NOACK and oil burn-off in a passenger car.

I didn't like T5 the ONE time I tried it. Used to run T3 triple protect in ODPE and Old Subaru EJ motors. Cant find it anywhere.

The old formula Red bottle defy 10w30 was stupendous also.
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4437980 - 06/21/17 08:52 PM Re: Why are Rotella T5 & T6 so volatile? [Re: ARCOgraphite]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
Originally Posted By: ARCOgraphite
Never had a relationship between NOACK and oil burn-off in a passenger car.

Bingo. Even in really high Noack oils back in the day with the taxis, some burned, some didn't. Sure, a lower Noack might be "better," but we do have to be cautious how much we hang our hats on one number only.

If someone's really worried about Noack, just run a monograde. There will never be a concern about Noack. Everything else might be haywire, but the Noack will be right.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4438790 - 06/22/17 05:59 PM Re: Why are Rotella T5 & T6 so volatile? [Re: Garak]
fdcg27 Offline


Registered: 09/25/09
Posts: 15699
Loc: OH
Garak, you're right in that NOACK isn't the only metric to consider in a motor oil, but it may be among the more important ones.
NOACK does tell a user a lot about the quality of the basestocks used in formulating an oil.
_________________________
17 Forester 12K MSS 0W-20
12 Accord LX 86K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i

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#4439097 - 06/23/17 12:53 AM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
I don't doubt its importance, but we have to watch what we divine out of that. Mola has posted months ago that there are ways to get some impressive Noacks without fantastic base stocks. Like I said, run a monograde, and you'll have a fantastic Noack.

When it comes to HDEOs, while I'm no formulator, perhaps there aren't many overriding reasons to go wild on getting the Noack down to what we see with some of the A3/B4 type oils with OEM certifications.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4495468 - 08/22/17 06:12 PM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
JohnnyJohnson Online   content


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
I use T6 in my 2006 Duramax I usually change oil it in a 5500 to 6000 mile range. I have never had to add oil between changes. In fact I don't remember ever having a real drop on the dip stick ever? I use it most to tow a 14,000 lbs. fifthweel. Because of the towing I never go for extended OCI's
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4499414 - 08/27/17 12:20 PM Re: Why are Rotella T5 & T6 so volatile? [Re: Virtus_Probi]
GemStater Offline


Registered: 10/27/14
Posts: 285
Loc: Pacific NW USA
Originally Posted By: TinyVoices
...unfortunately, these are from 2014 and I believe that T6 has been reformulated since then.


Correct! The CK-4 version is out now.

One notible change is T5/T6 is now formulated with a quantity of Shell PurePlus GTL base oils. I'd imagine NOACK would be lower now than past CJ-4 formulations.
_________________________
06 Honda Accord EX-L 3.0L Mobil 0W-20 AFE | Fram XG7313
02 Dodge Grand Caravan 3.3L - PP 5W-30 | Fram Ultra XG8A
69 Plymouth Road Runner 383 - Restoration

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#4499561 - 08/27/17 03:36 PM Re: Why are Rotella T5 & T6 so volatile? [Re: GemStater]
car51 Offline


Registered: 03/12/15
Posts: 10256
Loc: Southwest PA
Originally Posted By: GemStater
Originally Posted By: TinyVoices
...unfortunately, these are from 2014 and I believe that T6 has been reformulated since then.


Correct! The CK-4 version is out now.

One notible change is T5/T6 is now formulated with a quantity of Shell PurePlus GTL base oils. I'd imagine NOACK would be lower now than past CJ-4 formulations.


Not hardly
_________________________
2009 Toyota Camry LE

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#4499705 - 08/27/17 07:02 PM Re: Why are Rotella T5 & T6 so volatile? [Re: JohnnyJohnson]
Spike555 Offline


Registered: 08/15/17
Posts: 36
Loc: West Michigan
Originally Posted By: JohnnyJohnson
I use T6 in my 2006 Duramax I usually change oil it in a 5500 to 6000 mile range. I have never had to add oil between changes. In fact I don't remember ever having a real drop on the dip stick ever? I use it most to tow a 14,000 lbs. fifthweel. Because of the towing I never go for extended OCI's


You're changing your oil way to often. You can easily go 10k using that oil and towing that trailer.
That oil is rated for 80,000 miles in OTR trucks.
We used standard Rotella 15w-40 in our Duramax at work, 10k oil changes and we still got 300,000 miles out of them, and thats as a delivery van fully loaded foot to the floor stop and go all day 5 days a week drive it like your stole it.

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#4499774 - 08/27/17 08:16 PM Re: Why are Rotella T5 & T6 so volatile? [Re: Spike555]
JohnnyJohnson Online   content


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Spike this year the truck has seen very few miles a little over 2k all towing it will be a year in October. The Oil monitor says 80%. The fuel filter I skipped last year and it shows at 50% I will likely change them both out along with a new Air intake filter the end of October. Just got the AC/Delco fuel filter their coming down used to be $32 got this last one for $19 and some change. The total cost oil, a Fram Ultra Guard filter and the fuel filter is going to run me $79.90. Less than just an oil change at the dealer for mineral oil.
_________________________
2004 Toyota Corolla 121707
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4531979 - 10/02/17 11:42 AM Re: Why are Rotella T5 & T6 so volatile? [Re: fdcg27]
WillB Offline


Registered: 07/31/10
Posts: 214
Loc: Innisfil, Ontario, Canada
We have been running T6 5W40 in our tractor since the first oil change. 890 hours and zero oil consumption.

Reslly want to run it in my truck, but GM says no 40w.


Edited by WillB (10/02/17 11:43 AM)
_________________________
Thanks,

Will

2017 Ram 1500 Crew Cab 4x4 Hemi 5.7 6 Speed Auto
2011 GMC 1500 CC 4WD 4.8 - Traded.

04 GMC 1500CC Z71 350,000km 217,000 miles - Retired.

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