Oil Analysis results?

[Pistoloni]

Well that's comforting to know-that we all have the same issues. ?. The past few weeks I've noticed an engine "rattle" for lack of a better term at 3000 rpms. Come to find out, many others have the same. The forums are grief-sharing support groups for us jeepers.

Let me know if the test shows any coolant. I hope my isn't ending up there, I can smell it sometimes so I am guessing its leaking onto the block and burning off

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[Upnarms]

Let me know if the test shows any coolant. I hope my isn't ending up there, I can smell it sometimes so I am guessing its leaking onto the block and burning off

I never smell it. Some say there is some evaporation they suspect from the cap. But it's a sealed system. Others suggest the weephole in the water pump. I've never seen the oil have any obvious discoloration but if it's a super tiny amount I probably wouldn't.

Is any level of potassium in the oil indicative of a leak? Or is it when it's over a certain threshold?

 

[Pistoloni]

I never smell it. Some say there is some evaporation they suspect from the cap. But it's a sealed system. Others suggest the weephole in the water pump. I've never seen the oil have any obvious discoloration but if it's a super tiny amount I probably wouldn't.

Is any level of potassium in the oil indicative of a leak? Or is it when it's over a certain threshold?

I wish I could tell you, but I have no idea!

 

[Plongson]

Mine had a slow loss of coolant and it was the pump. Here's the link to my post...
Water Pump...

 

[Upnarms]

Got my first result back from horizon. I have 55k miles on my jeep. The Base No D4739 was in the moderate range 2.4. I have no clue what that means. Fuel dilution was 1.7, and showed in green.

I just took my jeep in for a bad rocker arm and they replaced all of them on one side as well as the camshaft. Don't know if that issue had any relation to the report.

I had been worried about a coolant leak cause of a very minor drop in the reservoir level i see every few months. Pain was 2 ppm which from what i hear isn't anything significant.

Any thoughts?

 

[Heimkehr]

Got my first result back from horizon.

The Base No D4739 was in the moderate range 2.4. I have no clue what that means. Fuel dilution was 1.7, and showed in green.

I had been worried about a coolant leak cause of a very minor drop in the reservoir level i see every few months. Pain was 2 ppm which from what i hear isn't anything significant.

Any thoughts?

If "Base No Xxxxx" is intended to mean Total Base Number, the corresponding figure -- here, 2.4 -- is intended to illustrate the remaining service life of the oil's additive pack. The value of that figure must be applied in context to the number of miles that accumulated between oil change intervals. For the sake of the engine's long term health, the TBN of a used oil sample shouldn't be less than 1.0.

The Fuel Dilution percentage shouldn't ever be more than 2.0. Personally, I like to see <0.5 on my reports from Blackstone.

Is Pain a typo? Just trying to determine the data ID that should be crosswalked to the 2ppm figure. If it's intended to mean coolant dilution in the oil, it should always be 0.0.

Disclaimer: I know this thread is in the EcoDiesel subforum. My thoughts on the matter are derived from used oil samples taken from a GDI engine.

 

[Upnarms]

If "Base No Xxxxx" is intended to mean Total Base Number, the corresponding figure -- here, 2.4 -- is intended to illustrate the remaining service life of the oil's additive pack. The value of that figure must be applied in context to the number of miles that accumulated between oil change intervals. For the sake of the engine's long term health, the TBN of a used oil sample shouldn't be less than 1.0.

The Fuel Dilution percentage shouldn't ever be more than 2.0. Personally, I like to see <0.5 on my reports from Blackstone.

Is Pain a typo? Just trying to determine the data ID that should be crosswalked to the 2ppm figure. If it's intended to mean coolant dilution in the oil, it should always be 0.0.

Disclaimer: I know this thread is in the EcoDiesel subforum. My thoughts on the matter are derived from used oil samples taken from a GDI engine.

Doh, it was potassium. Not pain. 2 parts per million. I've read it should be 0 but 0-3 is acceptable? I don't think that would be considered a big coolant leak into the oil but maybe something to watch.

What you are saying makes sense in the base no cause it was a 5000 mi sample.

So the fuel dilution, what would cause that to be high? Do you think it would have been affected by my failed rocker arm? I guess I'll have to check future analysis to see if that changes.

Sorry didn't see it was ecodiesel forum. I just look at the titles and that's how i stumbled on the thread.

 

[Heimkehr]

Doh, it was potassium. Not pain. 2 parts per million. I've read it should be 0 but 0-3 is acceptable?

So the fuel dilution, what would cause that to be high? Do you think it would have been affected by my failed rocker arm?

Potassium, in the context of an oil analysis report, is a wear metal. The first reading I received, based on a sample taken during the inaugural oil change, was 10. At the next oil change, it was 3. It's been zero ever since.

Sorry, I can't comment on if or how a rocker arm repair would affect fuel dilution. The general view, irrespective of circumstances, is as I mention in post #36.

 

[Upnarms]

Potassium, in the context of an oil analysis report, is a wear metal. The first reading I received, based on a sample taken during the inaugural oil change, was 10. At the next oil change, it was 3. It's been zero ever since.

Sorry, I can't comment on if or how a rocker arm repair would affect fuel dilution. The general view, irrespective of circumstances, is as I mention in post #36.

Ok thx. I had read nothing on an engine would produce potassium except coolant. I was reading now too that fuel dilution is higher when a vehicle is driven for many short trips, so to reduce it mix in longer drives. This makes sense based on the driving habits we have.

Anyway, thanks to all who informed me on the usefulness of oil analysis. It all makes sense now, whereas before i thought it was crazy. ?

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