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#2888086 - 01/29/13 01:40 PM AMSOIL AFF0w-40 5064 miles 2011 Acadia
Rat407 Offline


Registered: 12/13/02
Posts: 780
Loc: North Carolina
Code:
Here are two UOA's on our 2011 Acadia. This has the direct injection. 
Looks like it is getting better and the AFF0w-40 did a great job. This is with
and EaO18 oil filter on both UOA's. Running Exxon regular fuel 99% of the time.
The second sample was taken after a second run of the ALF, then I switched to the
AFF.

OIL             AFF0w-40  ALF5w-30
MILES IN USE    5,064     5,170     
MILES           28,000    17,100   
SAMPLE TAKEN    01/26/13   08/06/12  

ALUMINUM        2          5        
CHROMIUM        0          1        
IRON            15        19       
COPPER          4          6       
LEAD            0          0       
TIN             0          0        
MOLYBDENUM      54         63       
NICKEL          0          0        
MANGANESE       34         1        
SILVER          0          0        
TITANIUM        0          0        
POTASSIUM       1          0       
BORON           8          55       
SILICON         14         18        
SODIUM          2          5       
CALCIUM         3012       2477    
MAGNESIUM       34         9      
PHOSPHORUS      1000       562      
ZINC            1108       713    
BARIUM          0          0
     
INSOLUBLES      0.2        0.2      
WATER           0          0        
FLASHPOINT F   370        390      
SUS VIS 210F   62.2       53.5    
cSt @ 212F     11.4       8.34
Fuel%		2.3	   <0.5
Antifreeze%     0          0
Water%          0          0
TBN             3.43       1.3


Edited by Rat407 (01/29/13 01:41 PM)

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#2888147 - 01/29/13 02:36 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
A_Harman Offline


Registered: 10/01/10
Posts: 4364
Loc: Michigan
The 30-weight ended up as a 20.
The 40-weight ended up as a 30.
I think it would be better to stay with the 40, and maybe go to 6k miles for the OCI. The 40 had more TBN at the end than the 30, and still had the viscosity of a middleweight 30. Higher Phosphorous in the 40 is good for wear resistance.

Which engine does it have?
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#2888155 - 01/29/13 02:40 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
tinmanSC Offline


Registered: 09/07/10
Posts: 2008
Loc: Oswego, IL
Manganese in the sample? Where is that coming from?
Edit: Upon further inspection it seems I momentarily lost my mind and should be subject to a rather vigorous flogging. Please disregard.
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#2888167 - 01/29/13 02:52 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
Rat407 Offline


Registered: 12/13/02
Posts: 780
Loc: North Carolina
Terry said to take it to 6 maybe even 7k, just have to take a sample then and see how it does. The fuel dilution didn't help any. This has the 3.6l direct injection engine.

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#2888175 - 01/29/13 02:58 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
skyship Offline


Registered: 06/09/12
Posts: 2071
Loc: Tettnang, Baden-Wurttemberg, G...
ALF took a very big dive in TBN for only 5K miles, not exactly a long life oil. Is a 5/30 the recommended grade, as the 0/40 did rather better, even with some fuel contamination?


Edited by skyship (01/29/13 03:00 PM)

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#2888378 - 01/29/13 05:20 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
randomhero439 Offline


Registered: 07/21/12
Posts: 1250
Loc: ohio
Interesting Amsoil AFF is a snowmobile/ATV oil...
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08 BMW 335i 6-speed MT: M 0w-40 / Mann filter (~400whp on E85)
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#2888389 - 01/29/13 05:27 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: randomhero439]
Clevy Offline


Registered: 11/11/10
Posts: 7616
Loc: Saskatoon canada
Originally Posted By: randomhero439
Interesting Amsoil AFF is a snowmobile/ATV oil...


Is this the yellow cap stuff. I've got 15 quarts of it in my basement. It's the only oil that lasted as long as rotella in my shared sump bikes. But cost 3 times as much.
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#2888392 - 01/29/13 05:29 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Clevy]
randomhero439 Offline


Registered: 07/21/12
Posts: 1250
Loc: ohio
Originally Posted By: Clevy
Originally Posted By: randomhero439
Interesting Amsoil AFF is a snowmobile/ATV oil...


Is this the yellow cap stuff.


Yes
_________________________
08 BMW 335i 6-speed MT: M 0w-40 / Mann filter (~400whp on E85)
03 Accord EX V6 6-speed MT: PP 5w-20 5w-20 / Honda filter (~250whp)


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#2888397 - 01/29/13 05:33 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
Clevy Offline


Registered: 11/11/10
Posts: 7616
Loc: Saskatoon canada
Thanks for posting this voa. I'm surprised it meets JASO with moly in it. Not that my honda's are high powered enough to slip the clutch.
This stuff is SL iirc too.
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#2888407 - 01/29/13 05:40 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
Brons2 Offline


Registered: 09/16/03
Posts: 2484
Loc: Austin, Texas
I was wondering when someone would try out 0w40 in these direct-injected GM engines. Seems like a perfect fit. Nice improvement in TBN and viscosity versus the 5w30. Wear metals are slightly better. Both are very good compared to some of the other DI GM engines we have seen around here.

7K might be doable, 6K for sure.

Nicely done.
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#2888443 - 01/29/13 06:03 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
MolaKule Offline


Registered: 06/05/02
Posts: 14697
Loc: Iowegia
What happened with the fuel dilution between the 5W30 and 0W40?


Edited by MolaKule (01/29/13 06:03 PM)
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#2888456 - 01/29/13 06:14 PM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
Rat407 Offline


Registered: 12/13/02
Posts: 780
Loc: North Carolina
The difference in the two UOA's is the one is from Terry and the other is from Blackstone. I'm under the impression that they do a different test than Terry but I could be wrong. If this oil continues to give good results I have no issues on using it, especially if I can go up to 8k miles eventually.

I was going to use the the EFM European 5w-40 but Terry thought the AFF 0w-40 would be a better choice.

This vehicle is supposed to be using a dexos1 5w-30 oil, well so much for using that. smile

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#2888879 - 01/30/13 04:11 AM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
dnewton3 Offline



Registered: 05/14/07
Posts: 5690
Loc: Indianapolis, IN
5k mile OCIs?
Considering a s-t-r-e-t-c-h to a mind-bending 8k miles?
Wow - really pushing the envelope, aren't we?
At that limit, even a dino oil would probably do fine.


And don't flame me for Dexos being "requried", because by using AFF (only rated up to API "SL" which would not cover a 2011 vehicle nor GM Dexos applications), it's clear the OP isn't overly concerned about warranty coverage. And, BTW, Amsoil would not cover a warranty claim for this application either, because they do not specify AFF for Dexos applications; allow me to quote directly from their written warranty certificate:
"Failure of equipment when AMSOIL lubricants are not used in strict accordance with either the written recommendations of AMSOIL INC. or the OEM for warranty coverage."
They would only have to warrant the use of (according to their site data) ASL, XL, or OE lubes; not AFF.


Is the engine in fine shape; yes - it seems so, and frankly I don't know why it wouldn't be. But the wallat is taking a pounding here. What a huge waste of synthetics.



Edited by dnewton3 (01/30/13 04:27 AM)
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

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#2888882 - 01/30/13 04:24 AM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15278
Loc: Sunny Florida
^^^Agreed it is at best an under-utilization of what appears to be a great choice of oils for the GM DI engines.

With a longer interval I'm sure it would become more cost effective, but perhaps engine care is higher on his list that cost factors?
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#2888888 - 01/30/13 04:41 AM Re: AMSOIL AFF0w-40 5064 miles 2011 Acadia [Re: Rat407]
dnewton3 Offline



Registered: 05/14/07
Posts: 5690
Loc: Indianapolis, IN
To infer that his "care" for his vehicle is superior to others who choose to not use synthetics for specific applications is a tainted viewpoint, IMO.

To really debate that point, we have to define what "care" means.
To him, it might mean using the most expensive lube he can find, and run short OCIs; clearly he subscribes to that mantra.
To me, "care" means setting an acceptable level of performance, then finding the least cost alternative that meets the level, relative to the highest ROI.
If his "care" using synthetics offers no "better" results (no lower wear), then the performance is a wash, and then cost is in play as the sole deciding factor.
Cost factors into it, but only if there is a huge disparity in performance that can justify the expense; only if the syn returned a grossly differnt wear result.

I seriously doubt the wear protection of this AFF lube is 4x+ "better" than a lowly API SN lube used for 5k miles.
AFF retail cost is $11/qrt. Is it THAT much "better" than a SN from Walmart at $2.50/qrt?

In fact, I'll put my money where my mouth is!
I'll offer a contingent wager ...
I'll pay two OCI's of Walmart ST SN 5-30 lube based on a few conditions:
1) two ST OCIs are run back-to-back at 5k miles; one to flush, second to test
2) he pays for the UOAs and filters (a cost he would bear anyway)
3) if the second OCI does not result in a substantial statistical shift in wear data, showing tangible inferiority of a dino lube in this application, then I'll pay for both OCIs of ST
4) if the second OCI shows less than 3-sigma variation (typical of "normal" performance), he pays for it all
5) use Blackstone database for macro-analysis
6) true statistical macro analysis will be used to judge the results of wear; not some emotional, arbitrary feel-good numbers
7) the full report would be made directly available to me as well as the OP via Blackstone
8) I will send the funds to a mutally agreed member here to hold the money in escrow until the testing is complete; the money will either be returned to me or forwarded to the OP


What about it?


Edited by dnewton3 (01/30/13 04:47 AM)
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

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