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

[wwillson]

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.

https://bobistheoilguy.com/forums/t...filter-change-hpl-hdeo-5w-20-cleaning.357541/

The oil starts with a TBN > 14, what do you think the TBN is now?

 

[ford250]

5.5

 

[JHZR2]

Age isn’t going to affect it, and gas has pretty low sulfur anymore.

Typically I’d remove oil around 24mo even if synthetic.

 

[jake wells]

5-6

 

[fantastic]

My vote is in but we'll see.

 

[doublebase]

I’m guessing around 5.5

That‘s a port injected 3.6 if I’m not mistaken.

 

[bbhero]

I think it will be 8.6.

 

[wwillson]

That‘s a port injected 3.6 if I’m not mistaken.

Naturally aspirated and port injected.

 

[ARCOgraphite]

What is the typical usage pattern?

 

[wwillson]

What is the typical usage pattern?

Grocery getter and lots of sitting in the garage, since we both work from home. The Durango does all of the road trips.

 

[RDY4WAR]

7.856

 

[buster]

8-10.

 

[ARCOgraphite]

I'll go with 3.7mg KOH/g

 

[Impatient]

7.856

Precisely.

 

[wwillson]

The TBN is 6.27 after 27.5 months, 11,000 miles, getting groceries, and always running E10 ethanol blend. I will post the entire UOA later when I get time.

 

[wwillson]

The UOA data is posted here:

https://bobistheoilguy.com/forums/t...s-11-000-miles-on-hpl-5w-30-hdeo-cj-4.366962/