2013 suburban UOA Oil Analyzers high oxidation

[Cmobile]

2013 Suburban with 166k miles.

Has had relatively short OCI of about 2k miles or 3-4 months. Was short tripped half of this OCI.

changed the filter from Fram Endurance to wix at 1000k, (testing the affects of filter brands and oil pressure, ,no noticeable change in pressure.) Vehicle burned Half a qt during this time. So I had afldded a qt of a ester based stiction eliminator as top off after 1/2qt burn and filter change.

Sooo,
What would cause the high oxidation?
Would the ester based stiction remover have caused this?

Operating temps are normal according to the dash gauge. No towing, just daily commute. M1 FS 0w40.

Oil was changed at sample time. VRP (restore and protect) is in the sump now with no additives.

Any knowledge of this UOA would be appreciated.

I don't normally do UOA's but wanted to test for fuel dilution and water/coolant. No evidence of either, but with 166k on the radiator with TOC and EOC, wanted to check.

 

[Cmobile]

Edited

 

[tasch72]

the ester-based stiction remover most likely falsely increased the oxidation.

High oxidation in VOA's indicate esters, Lake Speed Jr has some examples on his youtube channel

 

[Cmobile]

Thanks

 

[fantastic]

Like mentioned probably the additive. I'd use a fuel additive that goes into the fuel tank rather than putting anything in the oil to get a better UOA results. Other than that the Suburban looks like it had a short run on this sample & could've done double that mileage easily but you probably wanted to get an idea first.

 

[Cmobile]

I got a bit nervous when I read the remarks in the report initially. That prompted a search here and others have noted a voa oil with high oxidation prompts similar remarks on their UOAs.

M1 FS 0w40 may have a a higher oxidation number out of the bottle. Not sure what the current version of this Euro oil has as a starting point for oxidation, but likely higher than other basic oils.

Thanks for the responses.

 

[Cmobile]

...but you probably wanted to get an idea first.

Yea, just trying to see of there was any underlying issues or indicators promoting a repair.

 

[BMWTurboDzl]

2013 Suburban with 166k miles.

Has had relatively short OCI of about 2k miles or 3-4 months. Was short tripped half of this OCI.

changed the filter from Fram Endurance to wix at 1000k, (testing the affects of filter brands and oil pressure, ,no noticeable change in pressure.) Vehicle burned Half a qt during this time. So I had afldded a qt of a ester based stiction eliminator as top off after 1/2qt burn and filter change.

Sooo,
What would cause the high oxidation?
Would the ester based stiction remover have caused this?

Operating temps are normal according to the dash gauge. No towing, just daily commute. M1 FS 0w40.

Oil was changed at sample time. VRP (restore and protect) is in the sump now with no additives.

Any knowledge of this UOA would be appreciated.

I don't normally do UOA's but wanted to test for fuel dilution and water/coolant. No evidence of either, but with 166k on the radiator with TOC and EOC, wanted to check.

View attachment 229771

Don't use oil additives

 

[Cmobile]

Don't use oil additives

That's the plan. The rislone or stiction remover/eliminator do serve a purpose. They clean really well. Needed for the VLOM AFM v4/v8 on these 5.3l engines.

Wish I could afford to buy new, then wouldn't have to clean up PO's neglect, lol.

Now that the crankcase is relatively clean, will run VRP oil and not look back.
~C

 

[Artem]

I had to go google this “stiction eliminator”

Typical snake oil product with no actual PROOF that it does ANY cleaning. Just speculation and placebo by users.

So an oil additive was added into the mix and now you’re wondering about the Oxidation value in the report????

You’re playing backyard chemist. This is the result.

 

[Cmobile]

with no actual PROOF that it does ANY cleaning

The fallacy in your rebuttal is that I am not advocating or making an argument for their use. My goal, as stated, was to not use them. I mentioned that they serve a purpose, (i believe they do) but the point was to not use them.

If you read the report, you should have seen the comment about over-extended drain interval, or running too hot. So I inquired here and provided the details of my sample for sake of acuracy. I learned that oxidation values can be an indicator of ester content in the oil.


You have been a member of BITOG since 2010 and never read mention a stiction remover/cleaner? I find that hard to believe.

Your reply offered no value to the community. Not really sure why you responded Artem.

 

[Artem]

So I had added a qt of an ester based stiction eliminator as top off after 1/2qt burn and filter change.


What would cause the high oxidation?
Would the ester based stiction remover have caused this?

you’ve been here since 2012 and didn’t know about ester oil causing high oxidation?

Two can play this game.

I experimented with supposed engine cleaning additives a decade ago (the highly regarded Auto-RX) and PROVED that it doesn’t do jack squat (pulled the valve cover before & after multiple times to take pics, doing several doses of the cleaner)

Ever since then, I don’t believe in these snake oil additives.