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UOA article - what is "normal" #2780791 10/23/12 05:00 AM
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dnewton3 Offline OP
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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: UOA article - what is "normal" [Re: dnewton3] #2783876 10/25/12 08:58 PM
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BMWTurboDzl Offline
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FANTASTIC.!!! This site needed this information as it answers a lot of important questions around UOA's and how to interpret them.

Great Job!


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: UOA article - what is "normal" [Re: dnewton3] #2784010 10/26/12 04:40 AM
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dnewton3 Offline OP
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Thank you.


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: UOA article - what is "normal" [Re: dnewton3] #2817620 11/29/12 09:54 AM
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GBL Offline
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It is a good article. Where can we find the resultant data they have for each engine?

Last edited by GBL; 11/29/12 09:55 AM.

2007.5 6.7 Dodge/Cummins dually w/ 113k miles,
2011 F150 Ecoboost 124k
Re: UOA article - what is "normal" [Re: dnewton3] #2818813 11/30/12 07:02 AM
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dnewton3 Offline OP
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As I mention in the article, Blackstone (and most any other lab) does not keep statistical data, they only keep the raw numbers. And Blackstone does provide the "universal average". But as I've shown, that UA data has significant potential to be skewed. Although, that data would never be skewed down, but only up. So as long as you were near or below average, your numbers are probably OK.

Further, different labs use diffeernt testing methods and condemtnation numbers. You really have to know the specifics of each lab. My point in the article is that way too many people misunderstand how/why to use a UOA.

I doubt Blackstone, or any lab, really has the time/resources to hand out data for every single piece of equipment family they test lubes for. I worked with Blackstone for this article, as part of the relationship BITOG and Blackstone have as partnered sponsors. I hope most would agree that this relationship is a "win/win" for BITOG and Blackstone.


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: UOA article - what is "normal" [Re: dnewton3] #4271287 12/10/16 05:03 PM
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bmwjohn Offline
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Thanks for that TON of information. I have read it - sort of - and need to read it again. NOW, a question.I have a friend here in Indy who has a 524TD engine, used very little, in a motor home. Appears to be in great condition - low mileage, etc. In the family for years, usually sitting. He is thinking about pulling it out and replacing it with an Olds v-8 and trans axle.This is well within his usual expertise. This will provide a substantial improvement in performance, if no problems. I am suggesting he run the diesel in the spring, and then get a thorough oil test. Thought is it might be worth something extra with better documentation. There are no engine problems except the significant performance difference from a v-8. Thoughts as to suggestions? Thanks!

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