2014 Jeep Wrangler 3.6

[Harleydav91]

First UOA

MI on Oil 4,135
MI on Unit 19,210
Sample Date 07/30/2015
Make Up Oil Added 0 Quarts
Oil Type Pennzoil Platinum 5W-20

Universal Avgs
ALUMINUM 5
CHROMIUM 1
IRON 20
COPPER 31
LEAD 0
TIN 0
MOLYBDENUM 105
NICKEL 0
MANGANESE 1
SILVER 1
TITANIUM 0
POTASSIUM 4
BORON 1
SILICON 17
SODIUM 259
CALCIUM 2144
MAGNESIUM 14
PHOSPHORUS 604
ZINC 727
BARIUM 0


cSt Viscosity @ 100°C 9.0

Fuel %
Water % TBN 2.8
Base # 4.03
Oxidation 13
Nitration 9

 

[Harleydav91]

This was the 6th oil change. It currently has Pennzoil Ultra Platinum 5W-20. It has a 6 QT. sump. This is all offroad in dusty conditions. No short trips.
Looking to see if I can extend changes.

 

[Garak]

Have you been using Pennzoil all along? I'm asking because I see a pile of sodium (and a little bit of potassium), and sodium is not part of Pennzoil's additive package.

 

[Harleydav91]

No. I should have been more specific on this fill.
This was Valvoline SYNPower 5W-20.
Are the iron and copper in line with expected levels?
The Base # is 4.03.
TBN is 2.8.
Oxidation is 13, and nitration is 9.
What do these last 2 mean?
Thanks.

 

[Garak]

They might be a bit high, but it's really hard to tell from just one UOA, and one UOA is rarely enough to cause alarm. And, that's true in this case.

What alarmed me was the sodium, and knowing that there wasn't an oil with a sodium based additive package in there now. That's why it's best to stick with one thing and trend it.

 

[Sunnyinhollister]

So it currently has PUP and the report is from the Valvoline? If so that would explain the sodium.

 

[10cent]

As far as I'm aware Valvoline removed the moly from Synpower a couple of years ago. 105 ppm seems like a lot of residual if it is from a previous oil.

http://www.pqiamerica.com/March2013PCMO/valvolinesyn.htm

The wear numbers seem in-line with what we've seen from other Pentastar motors.

 

[Garak]

See, now we're hitting on all the problems of switching brand to brand and variety to variety and not having a VOA of the oil in use. We have moly that may have been from something else and a pile of sodium that may have been from something else.