For those that advocate 10K miles OCI

Wow. If we cant agree that highly diluted oil with fuel causes wear, not sure its possible to agree on anything.
I dont even know why I have to explain this….
If it doesn't change the numbers, how is it causing more wear?

Not sure why you can't understand that.
 
If it doesn't change the numbers, how is it causing more wear?

Not sure why you can't understand that.

Who said that it does not change the numbers? it significantly lowers viscosity. Ive seen UOAs with viscosity looking like 0w-8 from what once was 0w-20. Are you going to say that lower than speced viscosity is also ok?
 
Here is one UOA. I am sure some will dismiss it, like its one off or does not apply to them.
3.5% @ 7100 miles. Viscosity is reduced significantly from original spec. TBN not great, time to change.
96DC419B-1782-4999-AA62-573D1C319550.webp
 
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Here is one UOA. I am sure some will dismiss it, like its one off or does not apply to them.
3.5% @ 7100 miles. Viscosity is reduced significantly from original spec. TBN not great, time to change.
just bottom of the barrel d1g2 doing its thing.

desperately needs an oil upgrade
 
Here is my '13 Eco.
The yellow line going down is when Magnatec was introduced,
It replaced what was called Syn Blend.

Note the immediate drop in iron.
img072.jpg
 
Here is one UOA. I am sure some will dismiss it, like its one off or does not apply to them.
3.5% @ 7100 miles. Viscosity is reduced significantly from original spec. TBN not great, time to change.
Honestly, there is not enough history there to tell us anything.

I have seen enough reports on Eco's to suspect Ford was using 5/20w oil from the factory.
Almost all factory fills UOA's came in with low viscosity.

It could simply be that 10k OCI's won't work for you.
They obviously do for me.
 
Honestly, there is not enough history there to tell us anything.
It tells us that this oil should have been changed earlier. The important point that its pointless to argue about 10k oci without specific engine and driving patterns. This guy also thought that he is “easy on oil” until he saw his UOA.
 
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It tells us that this oil should have been changed earlier. The important point that its pointless to argue about 10k oci without specific engine and driving patterns. This guy also thought that he is “easy on oil” until he saw his UOA.
High wear metals are normal in a new engine.
Read the notes.
TBN was 1.7, the oil is still good.
There is nothing there to indicate higher than normal wear.

If your concerned about the fuel dilution you should be talking to your Dealer.
 
If your concerned about the fuel dilution you should be talking to your Dealer.

Its not a dealer fixable issue. These kinds of cars do the same thing when driven for short trips. What works for you, does not work for every engine/driving conditions
 
My bmw made it to 241k miles with 15k manufacturer service intervals and is still going strong .
How does the oil look at 15K or even at 10K? Like a diesel? That can't be all too good. And a modern engine should have no problem making it to 241k so that's not such a convincing argument. I like to see clean looking oil when I pull the dipstick and would change it if it doesn't, even at 5K intervals.
 
Some folks just refuse to admit that in some circumstances 10k OCI is too long. You show them UOA and other things, nothing matters, there is always some “smart” explanation: oh its the lab, something wrong with the car, oil not good and etx. Its truly is a waste of time showing/explaining.
 
This is at least the 3rd time this video has been posted.

Toyota has issues with rings, so I would not take this as applicable to properly engineered rings.
Toyota is losing their minds on fuel economy. My 2020 can not even fully charge my battery.
 
Its not a dealer fixable issue. These kinds of cars do the same thing when driven for short trips. What works for you, does not work for every engine/driving conditions
Come back when you have 30k on it with a couple UOA's.
If there is still a problem, I'll tell you that you were right.
 
Wow. If we cant agree that highly diluted oil with fuel causes wear, not sure its possible to agree on anything.

Anything over 1% is high dilution in my book. Such oil samples usually have viscosity significantly lowerred below the spec. It will wash away oil from cylinder walls, they will get groves and it will burn oil if you do it long enough. I dont even know why I have to explain this….
Assuming you occasionally get the oil up to temperature for an adequate amount of time you can't out OCI Fuel Dilution. 1500 mi and 10,000 mi analysis will show about the same dilution.

400,000 mi is achievable with some GTDI engines that typically run several percent dilution without significant oil consumption or lubricated engine parts replacement with factory recommended change intervals. How much longer it would last with shorter OCI or less dilution is unknown.
 
Assuming you occasionally get the oil up to temperature for an adequate amount of time you can't out OCI Fuel Dilution. 1500 mi and 10,000 mi analysis will show about the same dilution.

400,000 mi is achievable with some GTDI engines that typically run several percent dilution without significant oil consumption or lubricated engine parts replacement with factory recommended change intervals. How much longer it would last with shorter OCI or less dilution is unknown.
Sounds like you've seen some analyses like that. Can you link to them or post them here? It would be a great help and a worthwhile addition to this discussion.
 
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