Dodge Durango 3.6L - HPL CJ-4 5w-20 - 26,015 miles on oil

[wwillson]

Have you thought of using a filter similar in construction to the old Fram Ultra, rather than changing every 5K? Like say an Amsoil or a Royal Purple? I think they still have the wire backed synthetic media.

This filter was a Fram Ultra. I'm changing every 5k until the cleaning subsides.

 

[TiGeo]

How much spent on UOAs, oil, and filters for this 26K run?

 

[wwillson]

How much spent on UOAs, oil, and filters for this 26K run?

$20 each for the UOAs, $8 each for the filters, and $10/quart for the oil.

When we get good stable trend, I won't do as many UOAs.

 

[TiGeo]

$20 each for the UOAs, $8 each for the filters, and $10 quart for the oil.

When we get good stable trend, I won't do as many UOAs.

I don't know your fill volume but I'm guessing about $250 all-in for 26K for oil/filters/UOAs, not bad really, should be similar in cost vs. 5K changes with average Wallyworld oil/filters over that 26K.

 

[wwillson]

I don't know your fill volume but I'm guessing about $250 all-in for 26K for oil/filters/UOAs, not bad really, should be similar in cost vs. 5K changes with average Wallyworld oil/filters over that 26K.

6.5 qts in the 3.6L

 

[TiGeo]

6.5 qts in the 3.6L

In a basic port injected engine like this, it's the perfect case for the long OCI on a really good oil and looks like 20K or so is prefectly fine with that HPL. The only one in my fleet I could even attempt this with is the old Lexus RX, everything else is DI or special case (W8 that you don't mess around with, 5K at most). Interesting info!

 

[Stumpy]

Wow! And I thought going 15,000 to 20,000 miles was brave on my part. Nope! You sir are the long OCI Mas-tah! I'm not worthy! I'm not worthy!!!!!!!!!!!!!!!!!!!!!!!

 

[wwillson]

I dun examined it. Wear metals increasing, Viscosity increasing, and a layer of Junk in your oil pan.

The pictures in the sump show otherwise.

+14

Dodge Durango 3.6L 174k miles total 34k miles on oil - sump pictures

• wwillson
• Jan 7, 2024
• 23

Bore scope inserted through drain plug hole taking a look around.

 

[53' Stude]

Yes it is if you change your oil often. However, the metal that shows up on a ICP UOA doesn't cause wear, as it's not like there are chucks of metal circulating around in the oil.



Because when I decided to do extended oil change intervals, I change based on UOAs not feelings.

Very good info and report. Thank You sir