2022 EcoBoost Oil Analysis Shows >5% Fuel Dilution!

[Montana]

Bravo... How reasonable of you.

I love all the armchair analysis and subsequent bickering, makes for an amusing read.

I'll brb...

They didn't add enough butter on this popcorn.

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[Steven Chandler]

So it is entirely possible he has had upwards of 5% fuel dilution in his oil consistently (or at various points of the engine's life) and he has never known it - sometimes ignorance is bliss.

Take your new Mav out and open it up on the freeway for 20 minutes...that should clean everything up.

 

[Timothyd]

The major cause of GDI fuel dilution is not from blowby gases but from cold starts and questionable mixing in the combustion chamber.
This has nothing to do with the particular boosting system being used.
There is a fair amount of NA GDI engines in use today, do you think these are immune from gasoline/oil dilution? I don’t think so….

And, how does the raw fuel from the bad mixing and cold starts make it into the crankcase?

Higher combustion pressures have no bearing on fuel dilution? Extra pressures and forces from a bigger and more powerful turbo have no bearing on reliability?
That there "are a fair amount of NA GDI engines in service" has no bearing on this discussion.

 

[Guv]

And, how does the raw fuel from the bad mixing and cold starts make it into the crankcase?

Higher combustion pressures have no bearing on fuel dilution? Extra pressures and forces from a bigger and more powerful turbo have no bearing on reliability?
That there "are a fair amount of NA GDI engines in service" has no bearing on this discussion.

Cold start cylinder pressure and temperature are very low compared to cylinder pressure and temperature under high load. This allows for some raw fuel to get past the rings and into the crankcase. High pressure, temperature and better mixing at high speeds and loads all contribute to more complete combustion with less raw fuel available to contaminate the oil. Not rocket science……

 

[Guv]

And, how does the raw fuel from the bad mixing and cold starts make it into the crankcase?

Higher combustion pressures have no bearing on fuel dilution? Extra pressures and forces from a bigger and more powerful turbo have no bearing on reliability?
That there "are a fair amount of NA GDI engines in service" has no bearing on this discussion.

You seem to be quite the expert;
So why don’t you tell me then, why do the Ecoboost engines leak gas into their oil?
Bad injectors?
Bad ring packs?
Bad owners?
It would be great if you could educate me on this.
Thanks

 

[Snox801]

I’m not gonna get into the debate of why. That has been hashed out before. But I can tell you that you are perfectly fine with higher dilution.

If you look back at oil recommendations it was 5w20 on the original ecoboost DI engines. Then because of dilution they jumped back to 5w30 which I believe was the right oil all along.
Anyway I’ve done a decent amount of black stone oil test. All came back high fuel dilution. Now I immediately set this to amsoil which is what oil I use. They responded with it was fine. The 5w30 they offer is capable of over 15 percent dilution beige wear occurs. This make sense as I have one 3.5 boost that went 15k oil changes and has over 380k on it zero issues. So I’ve been using the oil change reminder on all mine since that time.
My least mileage one is my 2.0 edge with an e30 tune. It’s got 180k tuned miles.
It’s worked for me and I’m very hard on my engines once they are warm and up to temp. I’m sure I’d make most on here cringe with how hard I run them.

 

[Dudley]

Moral of the story, run top quality motor oil and change every 3500 miles MAX.

I do old school 3000 to 3500 tops, no matter what.

 

[MakinDoForNow]

Do you know that it takes short trips and engine temps into consideration for the calculation?

I've known it to be driven by two factors - miles driven and time since last change. I would interested to see where Ford discusses the calculation.

On Ford.com. (I have seen more detailed version also)
https://www.ford.com/support/how-to...t-is-the-intelligent-oil-life-monitor-system/

 

[MakinDoForNow]

I do old school 3000 to 3500 tops, no matter what.

I don't like to change oil every 10-12 days! I am retired now so that doesn't concern me as much anymore.

My father in 1950's was a "milk run" traveling wholesale plumbing supply salesman. He had a standing dealership maintenance appointment every third sat of month. Mechanic would pick car up at house sat am when Dad called that he was in town. Change oil, plugs, points, etc check things out and order parts for next service if he thought might be needed. Would bring car back home late Saturday or Sunday. Dad traded one car in after 10 months with 108k miles.

 

[jaybird]

So, recently did my second oil change on my 2022 EB. As you can see in the report, I was running AMSOIL Signature Series 100% Synthetic in 5w30. Run time on the oil was 5,600 miles. Note this change interval is WELL BELOW factory recommendation, and the onboard oil life meter indicated 50 percent oil life remaining.

All in report looks good EXCEPT the analysis shows a fuel dilution of greater than 5%, and SEVERELY low viscosity.

Anecdotally I can confirm the oil definitely had a strong fuel odor when emptied. So, not surprised by result. Question is, what to do? Obvious answer is shorten change interview to perhaps 4,000 miles and sample again.

But beyond that, any other recommendations? Catch can? Vented oil cap?

Please see full report attached.

I would recomend turning off your auto start/stop system. There is a rich condition every time the car is started do to the high fuel pressures in the direct injection system.

 

[James K]

So, recently did my second oil change on my 2022 EB. As you can see in the report, I was running AMSOIL Signature Series 100% Synthetic in 5w30. Run time on the oil was 5,600 miles. Note this change interval is WELL BELOW factory recommendation, and the onboard oil life meter indicated 50 percent oil life remaining.

All in report looks good EXCEPT the analysis shows a fuel dilution of greater than 5%, and SEVERELY low viscosity.

Anecdotally I can confirm the oil definitely had a strong fuel odor when emptied. So, not surprised by result. Question is, what to do? Obvious answer is shorten change interview to perhaps 4,000 miles and sample again.

But beyond that, any other recommendations? Catch can? Vented oil cap?

Please see full report attached.

So, recently did my second oil change on my 2022 EB. As you can see in the report, I was running AMSOIL Signature Series 100% Synthetic in 5w30. Run time on the oil was 5,600 miles. Note this change interval is WELL BELOW factory recommendation, and the onboard oil life meter indicated 50 percent oil life remaining.

All in report looks good EXCEPT the analysis shows a fuel dilution of greater than 5%, and SEVERELY low viscosity.

Anecdotally I can confirm the oil definitely had a strong fuel odor when emptied. So, not surprised by result. Question is, what to do? Obvious answer is shorten change interview to perhaps 4,000 miles and sample again.

But beyond that, any other recommendations? Catch can? Vented oil cap?

Please see full report attached.

Try a long drive before your next oil change. Your suggestion of a lot of short drives seems plausible. I might also try a different oil if those results were mine. A catch can is a good idea on a DI motor but I'm not sure that it would impact this issue. I had an Audi that had this issue but it also went through oil. As many know, it was the rings on Audi's 2.0 turbo. You might want to get another analysis at say maybe 1000 miles. I think that would be telling.

If you discover what the cause, please post as I'd be very interested and perhaps others as well.

 

[Steven Chandler]

So, recently did my second oil change on my 2022 EB. As you can see in the report, I was running AMSOIL Signature Series 100% Synthetic in 5w30. Run time on the oil was 5,600 miles. Note this change interval is WELL BELOW factory recommendation, and the onboard oil life meter indicated 50 percent oil life remaining.

All in report looks good EXCEPT the analysis shows a fuel dilution of greater than 5%, and SEVERELY low viscosity.

Anecdotally I can confirm the oil definitely had a strong fuel odor when emptied. So, not surprised by result. Question is, what to do? Obvious answer is shorten change interview to perhaps 4,000 miles and sample again.

But beyond that, any other recommendations? Catch can? Vented oil cap?

Please see full report attached.

So take your Mav out on the freeway and run it for 20 minutes. That should clean up everything once you reach running engine temps and you won't have to add an additive either. Recommend 91 octane.

 

[rtucker5612]

Even though the fuel dilution is high, it still falls within the range of a 20w. I own a hybrid, but I’m guessing that the EcoBoost lists either a 5w30 or a 0w20 as an acceptable alternative to a 5w30.

 

[Montana]

I do old school 3000 to 3500 tops, no matter what.

 

[Dudley]

Changed my EcoBoost oil yesterday. Gotta admit, wasn't paying attention so it was at about 5,000 this time. But my "analysis" was it "looked" like typical drain oil, and the old school "smell" test netted nothing more to me than what typical drain oil "smells" like. I am using Motorcraft 5/30 Blended and neither wife nor I are heavy on the throttle unless necessary to pass, so this may "slow" the amount of DFI fuel wash.

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