I don't think Rim Break (or whatever the current name happens to be) really cares about facts at this point.
Fuel dilution - how harmful, how much wear?
- Thread starter ledslinger
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And I think you're getting pretty good at figuring it out
Explain to us how oxidative thickening happens and how it isn't also affected by the presence of fuel. What's oxidizing?
Instead of just continuing to post unsupported nonsense.
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Someone give Columbo here a medal. Though I don’t know who this other person is, sounds very smart thougj
See post #57 ... it's not hard to see when someone changes their board name.
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Masking is a universally accepted factor. I won't be explaining it. Carry on.
No I think he has several separate accounts.See post #57 ... it's not hard to see when someone changes their board name.
Post #57 shows a username change on the same account. If he has other sockpuppet accounts, who knows?
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Who cares? I wanna see these DiLluTiOn destroyed engines
Because you don’t have a clue.
I’ve kind of figured that out as of late. So have others.
It goes to credibility.
Please, please keep it up until the mods ban your IP(s).
There are plenty of dilution destroyed engines. Timing chains that have stretched and require replacement; cam phasers that have failed and been redesigned by the OEM; even probably some of the oil ring packs that between heavy loads of VII, thin base oils, high Noack, and fuel vapors, have coked up and either pass huge quantities of oil into the chambers or even score the cylinder walls.
There’s plenty of data that shows the effects of thin oils further diluted by fuel, if you’re not floating down the river Denial on a sinking ship. They’re just not present in engines with PFI only… which don’t pass as much fuel into the crankcase.
We don’t see these same failures on engines that use thicker oils and have similar dilution numbers. That’s called evidence.
In attempting to have civil conversations with you on this board, I am unfortunately quite often reminded of the fact that oil and water do not mix.
It is ownerships perogative to allow one of its top professors of knowledge to behave in a manner that is in my view very poor.
It appears that you have a need to "win" what ought to be a cordial conversation between us, hence the repeated distortions, mischaracterizations and attempts at bullying.
I am actually pretty transparent about what I know and don't know.
Why make a discussion about motor oil so personal ?
I am longing for better dialog and freshest yet valid takes.
Peace out.
Regarding timing chain stretch, what about the Sequence X test ? It was determined that small dense soot particles were the chief culprit.Please, please keep it up until the mods ban your IP(s).
There are plenty of dilution destroyed engines. Timing chains that have stretched and require replacement; cam phasers that have failed and been redesigned by the OEM; even probably some of the oil ring packs that between heavy loads of VII, thin base oils, high Noack, and fuel vapors, have coked up and either pass huge quantities of oil into the chambers or even score the cylinder walls.
There’s plenty of data that shows the effects of thin oils further diluted by fuel, if you’re not floating down the river Denial on a sinking ship. They’re just not present in engines with PFI only… which don’t pass as much fuel into the crankcase.
We don’t see these same failures on engines that use thicker oils and have similar dilution numbers. That’s called evidence.
It was quite a challenge to get this issue under control while concurrently creating very thin motor oil.
It is as though nearly everyone on BITOG has completely discarded what took place on the journey to SP/GF-6.
API devotes great energy to create valid, relevant and appropriate tests, and there will be several additional brand spanking new tests for GF-7.
There is no API, or "Sequence", or any other official oil licensing testing of any kind that addressed fuel dilution that I know of. If someone knows of any, please post up the link(s) to the information. Maybe there should be. Throw that in on top of soot particulate contamination and see what happens.
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Is it possible to get enough small dense soot particles in the oil without significant fuel dilution? I don’t know, and am not certain this has been discussed.
Since it’s fairly proven that both the soot and fuel dilution are not present in a properly functioning PFI engine, it begs the question of why we’re not asking for a soot % test along with GC dilution %. It would be quite interesting to see (maybe even your samples?) if it’s possible to get significant soot levels with low fuel %. I think we’ve seen it discussed that the soot is from unburned fuel, which seems to make sense that unburned fuel will partially make it into the oil.
Essentially, they all do !
API was keenly aware of the pervasive problem of fuel dilution prior to 2020.
And yet all the problems associated with fuel dilution were taken into account in developing the tests, and covered by the oils which passed the tests.
And at what level of fuel dilution do they conduct the testing at, and what is their defined limit of fuel dilution?
You have any links to the official testing specifications with respect to fuel dilution on these official oil test procedures?
Not a bad train of thought, IMO.Is it possible to get enough small dense soot particles in the oil without significant fuel dilution? I don’t know, and am not certain this has been discussed.
Since it’s fairly proven that both the soot and fuel dilution are not present in a properly functioning PFI engine, it begs the question of why we’re not asking for a soot % test along with GC dilution %. It would be quite interesting to see (maybe even your samples?) if it’s possible to get significant soot levels with low fuel %. I think we’ve seen it discussed that the soot is from unburned fuel, which seems to make sense that unburned fuel will partially make it into the oil.
This soot is unusual, very small and very dense.
It takes a carefully orchestrated combination of dispersants, base stocks, add packs and dosages to get on top of this one.
I do not. We can all take notice that there are diverse opinions, even amongst experts, about condemnation points, for a variety of conditions.
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