HPL 5w-30 CJ-4 HDEO run in Dodge Charger 3.6L for 11,000 miles and 27.5 months - what is the TBN?

What is the TBN of this oil after 11,000 miles and 27.5 months in service?


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wwillson

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I have run HPL CJ-4 HDEO 5w-30 in the Charger 3.6L for 11,000 miles and 27.5 months. I'm going to send in a sample to see if the oil is still serviceable. If it is serviceable, I will run it. The filter was changed at 5,000 miles and 10,000 miles.


The oil starts with a TBN > 14, what do you think the TBN is now?
 
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Age isn’t going to affect it, and gas has pretty low sulfur anymore.

Typically I’d remove oil around 24mo even if synthetic.
 
The UOA data is posted here:

 
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