Fuel in oil

[Doc]

Mine did it with both 91 ethanol free, and 87. Only thing that fixed it was injectors. Perhaps coincidentally I also switched to Shell Rotella at the same time.

Totally fixed now ?
Regards
Doc

Sponsored

 

[Wade]

Totally fixed now ?
Regards
Doc

Yep! Oil level fluctuates a little, but has yet to go back over the full mark on the dipstick. It's been 2000+ miles since fixed.

 

[Bproctor]

I haven't smelled any fuel in the oil or seen anything unusual. But, here are the pics from my last catch can dump. It was 1500 miles after the last dump and the 10K oil change. I can't tell you what it is actually catching, but it seems to be more fuel since it evaporated so fast after bumping it in the oil drain pan. And as you can see my dipstick looks normal. Mostly highway miles at 60 to 75 MPH.

 

[Bproctor]

Blackstone for testing:
https://www.blackstone-labs.com/products/free-test-kits/

I just found this link today, over a year later.... But I wanted to say thank you!!! Their FAQ section is awesome.

https://www.blackstone-labs.com/information/faqs/gas-diesel-questions/

 

[HenryMac]

Well, I'm seriously considering a Ranger but after wading through 48 pages of "Fuel in the Oil" maybe not.

How widespread does this problem seem to be? Surely all Rangers can't be afflicted.

Thanks
Cliff

There are over 6,000 members on this site. Only a handful are experiencing issues. Sure it's a big deal if it's happening to you but it certainly isn't a widespread problem.

Also worth noting many of the folks that post here about the fuel in oil issues have a brand new truck. Fuel in the oil is normal when the motor is new and the rings have not yet seated.

 

[geophb]

Its all GDI engines. But from what I hear, couple people had injector issues?

On any GDI, its mainly from repeated cold starts and not getting up to full operating temp. GDI engines have an extremely short window to atomize fuel (vs port or carb) and if you combine that with cold start enrichment, catalytic converter warmup enrichment, cold start cat warmup high idle; it all adds up to more fuel in oil.

A catch can won't keep the fuel out of the oil btw. What is left in your can would normally be burned through the motor and was already in your oil in the first place. It definitely keeps the trash out of your intake though.

Edit: Grammer

 

[Dr. Zaius]

Well mine is at the dealer now for this problem.

Had the dealer change oil and filter at 2500 miles as the level was above the hole on the dipstick.

I thought possibly just the factory fill and rings seating, etc. but was aware of others having this issue so I wanted to be sure.

The dealer recorded the level and I drove it another 2000 miles.

Checked it yesterday and it was over the hole again.

Dropped it off this morning and dealer confirmed high oil level and the smell of fuel.

Hopefully resolved soon so I can do the Livernois tune.

I didn't want to install it before this was out of the way.

 

[dalekinder]

There are over 6,000 members on this site. Only a handful are experiencing issues. Sure it's a big deal if it's happening to you but it certainly isn't a widespread problem.

Also worth noting many of the folks that post here about the fuel in oil issues have a brand new truck. Fuel in the oil is normal when the motor is new and the rings have not yet seated.

Interesting, what would you say is a good averave mileage on the engine for the rings to be truely seated? Im currently at 1200 miles mostly interstate driving 70miles a day at 70-80mph on my 2020 ranger and I checked the oil and its right at the top dot factory fill and I do smell the fuel in the oil. 2020 XLT FX4. Motor manufactured in March 2020. I use strictly Shell Vpower 93 octane gas. Im also getting some engine hesitation when I push in the gas at 3krpm and its really bothering me. I hear the turbo but it only happens at that rpm. Whats also really annoying me in stop and go traffic, if im going 20mph or less and take my foot off the gas and put it back on I get a shudder/jerk from the drivetrain. Anyone else had that?

 

[HenryMac]

Interesting, what would you say is a good averave mileage on the engine for the rings to be truely seated?

I'd say 3,000 miles.

Manual states to not tow or drive to fast for the first 1,000 miles.

 

[Dr. Zaius]

Well mine is at the dealer now for this problem...

Update:

Dealer just called and said that my HPFP was the problem.

One is on order and I should be able to pick up the truck Monday or Tuesday.

 

[slowmachine]

Update:

Dealer just called and said that my HPFP was the problem.

One is on order and I should be able to pick up the truck Monday or Tuesday.

it would be nice if you could get more detailed information about exactly how the HPFP failure caused fuel to accumulate in the oil pan. Are they replacing it with an updated model? Are there any other symptoms of this failure besides oil dilution? And, of course, did replacing the HPFP actualily solve your problem, or are they just throwing parts at it with their fingers crossed?

 

[Dr. Zaius]

The HPFP is driven off the camshaft, so if it is leaking the fuel can mix with the oiling system.

I don't know if there's an updated pump or if I just got a bad one.

I had no other symptoms besides the oil increasing.

I'll be watching it closely to see if the problem is indeed solved.

I certainly hope so as aside from this issue I really like this truck.

 

[Dr. Zaius]

Update:

Picked it up today.

Now I just have to watch it closely until my apprehension is sated.

 

[slowmachine]

Update:

Picked it up today.

Now I just have to watch it closely until my apprehension is sated.

Thanks for sharing that.

 

[MotoWojo]

Update:

Picked it up today.

Now I just have to watch it closely until my apprehension is sated.

Your service report is much more detailed than mine. No leak down test or mention of any tests except for the oil sample they sent out, that came back at 12% dilution in less than 500 miles on fresh change. They replaced all injectors and the HPFP and the issue is still ongoing. I had a 3rd service appointment, been there 5 times already, a week ago Friday and they changed the oil but did nothing else. They are waiting on Ford to let them know what to do. I just got off the phone with them and they told me they got a second sample test that also showed high fuel dilution. They said they will contact Ford and get back to me. In the mean time, since the last oil change a little over a week ago, the level has risen to about a 1/4in over the max hole in ~250 miles. I am so bummed.

Sponsored