Fuel in oil

[u wish u could ride]

the link to the mustang forum was from 2015 .its now 2020 you would think one of them would of come back with a spun bearing post by now?!i see 50 60 fords of different styles on my commute all with the eco boost logo.i dont see any broken on side of road.(a jeep now and then and Nissan rogues)lol

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[CO2Ranger]

the link to the mustang forum was from 2015 .its now 2020 you would think one of them would of come back with a spun bearing post by now?!

Honestly, the Mustang crowd appears much more relaxed about it than I was. That last reply in the Mustang thread explains quite a bit about why we might be seeing the fuel in the oil (product of the engine design).

Seems like just keeping your oil change intervals at 5k or below is a reasonable solution.

 

[Tra1969]

So far so good but only about 250 miles so far. I would say the pump had to be the problem, as it went up so fast before the change. I'm just hoping it holds up and these hpfp,s we've had trouble with were just bad parts!!

Hey NJ Jim your still doing good. I'm struggling to get a good read on the dipstick. I let it set all night and check it in the morning and just seems to smear on the Stick. The frist couple hundred mile went well and even got the computer MPG up to 22.5 since the HPFP change(1st time I have seen it over 19.5). I'm going to try again in the morning to see if I can get a good read on it, but I think mine may be creeping up again. . Hope I'm wrong.

 

[N. J. Jim]

Hey NJ Jim your still doing good. I'm struggling to get a good read on the dipstick. I let it set all night and check it in the morning and just seems to smear on the Stick. The frist couple hundred mile went well and even got the computer MPG up to 22.5 since the HPFP change(1st time I have seen it over 19.5). I'm going to try again in the morning to see if I can get a good read on it, but I think mine may be creeping up again. . Hope I'm wrong.

Now I don't know their reasoning behind it but they tell me Ford tells them to run it enough to get the oil hot, then let it sit 15 to 20 minutes then check the oil. To me it seems like your naturally gonna get a lower reading that way than letting it sit for a few hours. But this is what they keep stressing to me! And your right it is hard to get a good reading on these dipsticks! And mine did come up some to, with about 450 miles since the HPFP change!

 

[MotoWojo]

Honestly, the Mustang crowd appears much more relaxed about it than I was. That last reply in the Mustang thread explains quite a bit about why we might be seeing the fuel in the oil (product of the engine design).

Seems like just keeping your oil change intervals at 5k or below is a reasonable solution.

Not a solution for those of us that would have the oil rise up to the twist after a 1000 miles or less? I was changing my oil every 500 miles waiting for Ford to approve doing something.

 

[MotoWojo]

Forgot to mention, but may be worth noting,
he said he would steer away from blaming the fuel pump as the culprit. If it was Diesel making 3000psi to the rail, then maybe. But a gasoline fuel pump that is running when it’s meant to be off at +-50psi, the injector should-be able handle that all day, and keep fuel out of the combustion chamber.

not a mechanic or claiming to be right, just passing along info I’ve been given.

hope it’s helpful.

I think you meant 30,000 psi for the diesel? I run gauges using an OBD scanner, MX+ BT, and one of the default PIDs I can monitor is fuel rail pressure. According to the readout, mine is regularly in the 2200 to 3700 psi range? This is the same, whether using Forscan lite on Android or the Torque app. I did notice that it seems to run about 200 psi lower since the HPFP was replaced, as I have not seen over 3500 psi yet, but I only have about 50 miles since getting it back from the dealer. Maybe the values I am seeing are wrong? I cannot seem to find what the psi range should be?

 

[jsphlynch]

I've driven 300-400 miles since having the hpfp replaced. The oil is now considerably above the top hole on the dipstick, and does smell slightly of gas, but not nearly as bad as I remember it smelling before. I'm trying to stay positive but the rising dipstick level has me concerned. Is there any reason why it might be reading so high besides the fuel issue? The engine was still warm, but it had been sitting for an hour or two when I checked it.

As a test, I took the "long way" to and from work one day. That evening, I let the truck sit an hour or two, then checked the oil, and found it a bit higher (maybe a quarter inch) than it had been that morning. Walked around pissed off that night, then decided the next morning I better document it with a picture, so pulled the dipstick to find the level back down to where it had been the previous morning.

I've been checking almost daily (always in the morning) for a couple weeks and the level has been high, but stable. This morning I pulled off the extra (maybe a cup), and I'll keep watching it. Did a blot test on the stuff I pulled off and it looks fine, so maybe it was only high because i somehow managed to overfill it when I did the oil change.

 

[CO2Ranger]

I agree.
As soon as I posted my previous comment I thought about the rapidly rising oil levels you've experienced and wondered how that would turn out. I honestly hope they figure it out for those that have that much fuel.

I read the service manual here on the site and don't see many failure points outside leaky injectors given the fuel pumps already been replaced.

 

[Da Ranger]

I have been calling Ford every couple of weeks. Finally Thursday they set me up to go in June 9th for diagnostics. I told them the service manager wanted me to put 10k miles on the last oil change and I’m not comfortable with that since I just had 6.8% fuel dilution in my last oil change. Good thing I haven’t really been driving lately.

Really hope they get this figured out and there is no internal engine damage since I really wanted this to be my last vehicle purchase.

 

[jsphlynch]

I was trying to find more information about this potential issue, and came across the following article from a 2009 issue of MTZ Worldwide about the creation of the 3.5 L V6 Ecoboost, written by a bunch of folks at Ford.

Here's the Link. (Note: Since this is Springer, it might be paywalled, depending on where you're accessing it from).

The key quote for this thread is:
"Through this methodology, the combustion system achieved the program objectives:
. . .
– under all operating conditions, undetectable fuel/cylinder impingement and fuel/oil dilution comparable to other direct fuel injected engines (approximately 5 % dilution). " (My emphasis)

So if I understand this correctly, getting fuel dilution of ~5% is within the stated goals of engine development for this predecessor to our engine. If that's true, and thus the 6% that showed up on my first UOA may not be as damaging as I feared it might be.

 

[aeroshots]

Concerned ?. Guess I'll wait a while before installing my recently purchase tune.

 

[Porpoise Hork]

This article goes into detail on the issues the implementation of GDI engines has caused with oil contamination and that the latest oil formulations like API SN Plus Resource Conserving and ACEA spec synthetic motor oils (European engine oil) are combating the issue.

The basic take-away from it is fuel blow-by oil contamination/dilution is an issue with GDI engines. It also looks like currently US motor oil formulas do not appear to be able to stop this dilution issue. While API SN Plus Resource Conserving rated oil is better at this, using ACEA spec synthetic motor oils might be worth testing to see if it helps mitigate the excessive fuel blow-by.

 

[NvrFinished]

This article goes into detail on the issues the implementation of GDI engines has caused with oil contamination and that the latest oil formulations like API SN Plus Resource Conserving and ACEA spec synthetic motor oils (European engine oil) are combating the issue.

The basic take-away from it is fuel blow-by oil contamination/dilution is an issue with GDI engines. It also looks like currently US motor oil formulas do not appear to be able to stop this dilution issue. While API SN Plus Resource Conserving rated oil is better at this, using ACEA spec synthetic motor oils might be worth testing to see if it helps mitigate the excessive fuel blow-by.

This was an interesting read. I have 1800 miles on my Ranger and will be changing the oil soon. I haven't detected the gas smell, but I think I will have an oil analysis done.

A forum member in an oil thread posted that he was going to use Mobil 1 Annual Protection 5W-30 since it was recommended by Mobil 1 for for the Ranger. Looking at the specs, it meets the API SN Pluse Resource Conserving requirements as well as ACEA A5/B5 requirements.

Which ACEA requirements would be best for this engine was not stated in the article (that I could find anyways). ACEA A5/B5 is as follows:

"ACEA A5/B5 Stable, stay-in-grade Engine Oil intended for use at extended Drain Intervals in Passenger Car & Light Duty Van Gasoline & Diesel Engines designed to be capable of using Low Viscosity Oils with HTHS Viscosity of 2.9 to 3.5 mPa*s. These Oils are unsuitable for use in certain Engines - consult vehicle-OEM’s owner’s manual/handbook in case of doubt. "

Unless there is something more suitable, I think I'm going to give this oil a shot. Thoughts?

 

[CO2Ranger]

This was an interesting read. I have 1800 miles on my Ranger and will be changing the oil soon. I haven't detected the gas smell, but I think I will have an oil analysis done.

A forum member in an oil thread posted that he was going to use Mobil 1 Annual Protection 5W-30 since it was recommended by Mobil 1 for for the Ranger. Looking at the specs, it meets the API SN Pluse Resource Conserving requirements as well as ACEA A5/B5 requirements.

Which ACEA requirements would be best for this engine was not stated in the article (that I could find anyways). ACEA A5/B5 is as follows:

"ACEA A5/B5 Stable, stay-in-grade Engine Oil intended for use at extended Drain Intervals in Passenger Car & Light Duty Van Gasoline & Diesel Engines designed to be capable of using Low Viscosity Oils with HTHS Viscosity of 2.9 to 3.5 mPa*s. These Oils are unsuitable for use in certain Engines - consult vehicle-OEM’s owner’s manual/handbook in case of doubt. "

Unless there is something more suitable, I think I'm going to give this oil a shot. Thoughts?

According to the manual spec and Mobil1s sheet both Annual Protection and Extended Performance 5w30 meet Ford's requirements for our Rangers. I ordered Extended Performance and Motorcraft filters. Wish me luck!

 

[HenryMac]

A forum member in an oil thread posted that he was going to use Mobil 1 Annual Protection 5W-30 since it was recommended by Mobil 1 for for the Ranger. Looking at the specs, it meets the API SN Pluse Resource Conserving requirements as well as ACEA A5/B5 requirements...... Unless there is something more suitable, I think I'm going to give this oil a shot. Thoughts?

Link to the Mobil 1 Annual Protection Thread

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