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  #25  
Old 02-16-2016, 11:56 PM
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Re: Blackstone oil analysis for EcoDiesel

Quote:
Originally Posted by chadg2 View Post
I wish there was a way from the oil sample to tell if a buildup was happening on the valve seals causing engine failure and head replacements down the road. Referring to the TSB out on these requiring both engine heads to be replaced.
Maybe viscosity and insolubles are a loose proxy for head buildup? I'm not an expert on this. I don't know if the oil ever even flows in that area.

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  #26  
Old 03-04-2016, 11:24 PM
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Re: Blackstone oil analysis for EcoDiesel

These are the results of a 9910 mile oil change at around 36K miles. The remarkable thing is the TBN of 3.5 which is what some new oils have. That means that there was significant high pH left to combat acid build up and this oil could have gone a lot farther.

As a disclosure this Jeep is operated on the panhandle of Florida and not subject to temps below freezing and the majority of the time driven at speeds about 45 mph.
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  #27  
Old 03-05-2016, 03:32 PM
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Re: Blackstone oil analysis for EcoDiesel

Do you have a clearer copy? I can barely make out most of it.
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  #28  
Old 03-06-2016, 10:45 AM
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Re: Blackstone oil analysis for EcoDiesel

That was a full scan. Will go back
and see if I can enlarge...


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  #29  
Old 03-06-2016, 06:12 PM
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Re: Blackstone oil analysis for EcoDiesel

Hopefully more readable.
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  #30  
Old 03-06-2016, 07:37 PM
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Re: Blackstone oil analysis for EcoDiesel

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Originally Posted by fun2drive View Post
Hopefully more readable.
What brand engine oil are you using?
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  #31  
Old 03-06-2016, 10:37 PM
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Re: Blackstone oil analysis for EcoDiesel

Pennzoil 5W30 Ultra L one of the approved oils...
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Old 10-29-2016, 08:35 AM
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Re: Blackstone oil analysis for EcoDiesel

Another EcoDiesel oil analysis for comparison. approx 30k miles on the engine and approx 10k miles on the oil.
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File Type: pdf Grand Cherokee Oil Report 1.pdf (54.4 KB, 44 views)
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