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2006 LBZ Duramax 17,773 miles #5115283 05/25/19 10:08 AM
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ditchdiggin Offline OP
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2006 GMC Duramax with 210,000 total miles. 17,773 miles on Texas Refinery Corp Moly XL Pro Spec 3 15w-40. Napa gold filter that has been on this entire run and I’ve added 1 quart of oil. This truck gets worked pulling a trailer pretty much daily that is anywhere from 4-14k. 90% city driving with very little idle time.

C73FB730-190D-4D15-BEF3-3DBF364DBD20.jpeg
Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115424 05/25/19 02:01 PM
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53' Stude Offline
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Pretty good report smile

Thank You



Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115428 05/25/19 02:05 PM
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Bighorn2500 Offline
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Looks good, that’s a significant amount of Moly & Boron.


2012 Ram 2500 SLT 6.7L Cummins 4x4
2018 Dodge Durango GT 3.6L 4x4
Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115582 05/25/19 04:36 PM
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FlyNavyP3 Offline
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Wow, first of all a great report. Duramax UOA always amaze me, you almost never see a bad one.

This oil is crazy. Almost 4,000 Calcium over 500 Mg, over 1100 Zn, nice dose of Moly and Boron. With all that Ca and Mg no wonder the TBN is still so high. What is the SA of this oil, has to be a BUNCH.


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115673 05/25/19 06:04 PM
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ditchdiggin Offline OP
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I'm not sure what SA is? I sent a virgin sample in and I'll post that when I get it back. I sent it to CAT but hopefully the numbers correspond.

Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115712 05/25/19 06:41 PM
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FlyNavyP3 Offline
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Originally Posted by ditchdiggin
I'm not sure what SA is? I sent a virgin sample in and I'll post that when I get it back. I sent it to CAT but hopefully the numbers correspond.


S.A. is Sulfated Ash, the metallic content of the oil when burned off. I looked up the PDS for your oil. Starting TBN is 15+ Ca 4500 SA was the highest I've ever seen at 1.72%.

Pretty stout oil, definitely not for a diesel with exhaust emissions!

Where did you buy It? Based on your UOA you could probably run this oil for 25,000 miles or more, the early numbers look good. But I'd want more data along the way to confirm.


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5115762 05/25/19 07:44 PM
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ditchdiggin Offline OP
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Ok thanks for the SA explanation. I go through a salesman that is in the Grand Rapids Mi area and it gets shipped to me. I've used their grease for quite a while and he talked me into trying the oil a few years ago. I ran the previous fill for 18,000 and changed it with no sample taken and figured it'd be a good idea this time to make sure there's no surprises. Prior to using the TRC oil it got filled with either Mobil Delvac or Rotella T both in 15w-40 since new.

Re: 2006 LBZ Duramax 17,773 miles [Re: FlyNavyP3] #5116190 05/26/19 10:08 AM
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m37charlie Offline
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“ SA was the highest I've ever seen at 1.72%.”

Many European ACEA E4 oils, including Delvac 1 SHC 5W40, which I use, have a SA of 1.8-1.9%
The TRC oil did shear quite a bit, note the drop in vis100 from 15.5 to 12.72. Probably not a problem.

Last edited by m37charlie; 05/26/19 10:10 AM.

05 Unimog U500/Unicat camper/Delvac 1 SHC ACEA E4/E5
09 BMW X5 35d/Delvac1 LE 5W30
88 Toyota OJ50LV OM314 motor D1 SHC
52 Dodge M37/Hercules diesel

Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5116332 05/26/19 12:32 PM
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userfriendly Offline
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If 10W30 was used instead of 15W40, would the drop in viscosity be a problem? Soot loading and oxidation may have kept the viscosity from dropping further.

Re: 2006 LBZ Duramax 17,773 miles [Re: userfriendly] #5116766 05/26/19 09:08 PM
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m37charlie Offline
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Originally Posted by userfriendly
If 10W30 was used instead of 15W40, would the drop in viscosity be a problem? Soot loading and oxidation may have kept the viscosity from dropping further.

A drop of 2.8 from 12.4 to 9.6 (xW20 region) would indeed be a problem, although apparently Duramaxes tolerate 10W30 just fine.
In 25k mi my 5W40 dropped from 14.4 to 13.0


05 Unimog U500/Unicat camper/Delvac 1 SHC ACEA E4/E5
09 BMW X5 35d/Delvac1 LE 5W30
88 Toyota OJ50LV OM314 motor D1 SHC
52 Dodge M37/Hercules diesel

Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5116835 05/26/19 10:14 PM
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benjy Offline
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in colder climates a 10-30 would prolly do + on that note i am wondering if a typical fake synthetic 15-40 would "work" in my girlfriends oil consuming 2.5 L DI 2013 malibu. summers in Pa would be fine but wondering about winter starting issues

Re: 2006 LBZ Duramax 17,773 miles [Re: 53' Stude] #5117935 05/28/19 08:18 AM
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mattd Offline
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I would buy that stuff if I could find it.


2007 Ford F-350 4x4 6.0 PSD

ASE Master, L1
Re: 2006 LBZ Duramax 17,773 miles [Re: ditchdiggin] #5119208 05/29/19 11:48 AM
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dnewton3 Offline
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A Dmax UOA showing Fe 2ppm/1k miles, after nearly 18k miles of use. All other metals are ghosts; so low they're not worth mentioning.

Yet another typical boring Dmax UOA.

The lube did it's job, but the Dmax could not care less about what's in there, except that it only need be the proper iteration for the year of engine. Other than that, they don't care at all.

I am encouraged to see that the lube and filter both went out past 15k miles. Most all of my data for "normal" products shows wear rates dropping out to 15k miles. Seems like 17k miles has caused no undue wear trend shift.




Last edited by dnewton3; 05/29/19 11:52 AM.

The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money
Re: 2006 LBZ Duramax 17,773 miles [Re: FlyNavyP3] #5196666 08/25/19 10:26 PM
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Originally Posted by FlyNavyP3
Originally Posted by ditchdiggin
I'm not sure what SA is? I sent a virgin sample in and I'll post that when I get it back. I sent it to CAT but hopefully the numbers correspond.


S.A. is Sulfated Ash, the metallic content of the oil when burned off. I looked up the PDS for your oil. Starting TBN is 15+ Ca 4500 SA was the highest I've ever seen at 1.72%.

Pretty stout oil, definitely not for a diesel with exhaust emissions!

Where did you buy It? Based on your UOA you could probably run this oil for 25,000 miles or more, the early numbers look good. But I'd want more data along the way to confirm.

Originally Posted by FlyNavyP3
Originally Posted by ditchdiggin
I'm not sure what SA is? I sent a virgin sample in and I'll post that when I get it back. I sent it to CAT but hopefully the numbers correspond.


S.A. is Sulfated Ash, the metallic content of the oil when burned off. I looked up the PDS for your oil. Starting TBN is 15+ Ca 4500 SA was the highest I've ever seen at 1.72%.

Pretty stout oil, definitely not for a diesel with exhaust emissions!

Where did you buy It? Based on your UOA you could probably run this oil for 25,000 miles or more, the early numbers look good. But I'd want more data along the way to confirm.



Amsoil Sig Series oils all have 2.2% ash as per Amsoil.

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