Used Oil Analysis not good.

[Jeepfueledbydiesel]

Here is my latest used oil analysis. For us we can't go very long and will not go by the OLM. Seems 4k oil changes are the max due to such high fuel dilution. We do mostly short trips and run on electric for the most part. Before I changed the oil, I did run it down and ran mostly on the engine on the interstate for 20 miles to get the oil good and hot. This is just over 6K on the AMSOIL Signature Series 5w-30 with the AMSOIL Ea15k50 filter.

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[jav_eee]

the OLM allows the manufacturer to brag about cost of ownership AND guarantee you’ll be back for another after yours breaks down due to following it.

5k mile oil change intervals at least, even with synthetic.

 

[Chief Toby]

Here is my latest used oil analysis. For us we can't go very long and will not go by the OLM. Seems 4k oil changes are the max due to such high fuel dilution. We do mostly short trips and run on electric for the most part. Before I changed the oil, I did run it down and ran mostly on the engine on the interstate for 20 miles to get the oil good and hot. This is just over 6K on the AMSOIL Signature Series 5w-30 with the AMSOIL Ea15k50 filter.

NOoooo - don't tell me the great Amsoil scam has claimed yet another casualty?

 

[Heimkehr]

We do mostly short trips and run on electric for the most part.

That use case exacerbates the negative effects of gasoline direct injection. With this in mind, it'd be surprising if excess fuel dilution wasn't present in the oil.

Unless you can manually and willingly maximize the continuous running of the engine itself, the best short term solution is to increase your oil change frequency in a substantive manner. Consider doing so every 3K miles, if only to determine if that particular sample provides improved results.

 

[Jeepfueledbydiesel]

That use case exacerbates the negative effects of gasoline direct injection. With this in mind, it'd be surprising if excess fuel dilution wasn't present in the oil.

Unless you can manually and willingly maximize the continuous running of the engine itself, the best short term solution is to increase your oil change frequency in a substantive manner. Consider doing so every 3K miles, if only to determine if that particular sample provides improved results.

after this, Oil Analysis, I pretty much come to the conclusion that I’ll be changing the oil every 3000 miles. If not sooner. No big deal though because we don’t put the miles on like we used to. So it’s not like it’s gonna cost any different. I just won’t use AMSOIL signature series. I’ll just move to a lesser cost Oil.

 

[stretch-bsn]

Pardon my ignorance on the topic…

why would you get your oil analyzed? What symptoms would you see that would make you want to do this?

also

where would someone get that done?

 

[Pape]

any idea where the copper and the boron is coming from ? Are they oil related or wear related ?

 

[ym0bc1]

Pardon my ignorance on the topic…

why would you get your oil analyzed? What symptoms would you see that would make you want to do this?

also

where would someone get that done?

People just like doing that to see more data about their vehicle.
You can get your oil analyzed by many services, blackstone, wix, amsoil. Cost around $25-$40 for each sample, waiting for a month or so.

 

[Heimkehr]

Pardon my ignorance on the topic…

why would you get your oil analyzed? What symptoms would you see that would make you want to do this?
also
where would someone get that done?

The element levels in used oil are an excellent leading indicator of the present health of the engine. Those readings that are outside of the accepted range can be used to extrapolate what might occur in the future, and thus inform what corrective steps can be taken now to mitigate or eliminate negative outcomes.

I use Blackstone Laboratories, but there are a number of lab services available, via a Google search. I've availed myself of both their engine oil testing service, and the same for transmission fluid.

Note that TBN, or Total Base Number, measures the estimated remaining performance life of the oil's additive pack.

any idea where the copper and the boron is coming from ? Are they oil related or wear related ?

 

[Pape]

The element levels in used oil are an excellent leading indicator of the present health of the engine. Those readings that are outside of the accepted range can be used to extrapolate what might occur in the future, and thus inform what corrective steps can be taken now to mitigate or eliminate negative outcomes.

I use Blackstone Labs, but there are a number of lab services available, via a Google search.

The question is the copper and boron part of the oil additive: virgin analysis, or your engine is having some good wear happening and you head gasket is leaking type of question

 

[Heimkehr]

The question is the copper and boron part of the oil additive: virgin analysis, or your engine is having some good wear happening and you head gasket is leaking type of question

Peruse the Google search results as it concerns those two elements being in engine oil. There's a variety of pro-grade articles that will serve as a helpful primer for you.

 

[Pape]

According to the virgin analysis I found, if accurate, the boron is normal and the copper is indeed wear. Maybe try some xW40 or try to tune the engine to reduce the amount of fuel in the oil, on a DI not sure this is even a option.

 

[CaliJLU]

How many miles on your rig? I was having similar fuel dilution the first 10k miles or so. Changed to Amz Ultra Plat and went away. Now I’m using Valv Restore and Protect

 

[WK2JT]

Pardon my ignorance on the topic…

why would you get your oil analyzed? What symptoms would you see that would make you want to do this?

also

where would someone get that done?

I started after they had to replace my intake cam. I have about 9k miles on this new cam and I’m still seeing elevated levels of iron, but not crazy high like right after the cam change. I’ve also played around with oil weights and that has made zero difference on the wear particles I’m seeing. What it has done is changed the cSt viscosity of course. The 0w20 would drop quickly where the 10w40 has stayed more stable even with longer change intervals. I’m hoping the elevated iron is just residual particles still flushing out and not another cam eating itself.

 

[Pape]

I started after they had to replace my intake cam. I have about 9k miles on this new cam and I’m still seeing elevated levels of iron, but not crazy high like right after the cam change. I’ve also played around with oil weights and that has made zero difference on the wear particles I’m seeing. What it has done is changed the cSt viscosity of course. The 0w20 would drop quickly where the 10w40 has stayed more stable even with longer change intervals. I’m hoping the elevated iron is just residual particles still flushing out and not another cam eating itself.

IMO you have two thing going on:

1. Residual iron from the previous cam. If you ask me once you start shaving a cam the engine is done for but this is not practical in real life.
2. Your new cam and rocker are "breaking in" so this will also add to it.

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