Fuel in oil

[Tra1969]

Already had the HPFP replaced and engine scoped some time ago at 1,900 miles. At 3,423 dealer changed oil was almost up to twist. After 4,500 miles from the last oil change the level has reached the top of the overfull hole. Going to take it in for the third time and have it checked and the oil changed. Got a long road trip tomorrow and want to see what it checks when I get home. After the last long trip it actually went back down. We'll see.

Update: Checked my level last night a hour and a half after I got home. Level checked at top of overfull hole. Went back out this morning before my trip and it checks 1/8" below the overfull hole where it has been for the last 4,000 miles. Seems it does not get a good check unless you let it set overnight(that's when I normally check and record it). Well we will see what happen after the trip now.

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[jinja]

From a deductive approach, it really sounds like previous suspicions by many are true--that it's caused by the cooler not letting the oil heat up enough. Does everyone's oil level go down back towards normal after long trips?

I'd imagine the problem isn't fixed in 2020's either; they aren't being driven as much on short trips because no one commutes due to covid. And the majority likely haven't had to change their oil yet in 2020 on their new vehicle.

 

[Texasota]

From a deductive approach, it really sounds like previous suspicions by many are true--that it's caused by the cooler not letting the oil heat up enough. Does everyone's oil level go down back towards normal after long trips?

I'd imagine the problem isn't fixed in 2020's either; they aren't being driven as much on short trips because no one commutes due to covid. And the majority likely haven't had to change their oil yet in 2020 on their new vehicle.

My oil has been changed twice on my 2020 (once at 465 miles and again at ~4300 miles). Yes, my oil level goes back down after a long highway trip. After the last oil change I've added ~800 miles of highway driving and the oil level on the dipstick was stable. Lately I am doing more town driving and I expect it is probably going to rise again.

If it was not for this thread i would probably be oblivious to the oil dilution issue and probably happier too.

 

[Tra1969]

Already had the HPFP replaced and engine scoped some time ago at 1,900 miles. At 3,423 dealer changed oil was almost up to twist. After 4,500 miles from the last oil change the level has reached the top of the overfull hole. Going to take it in for the third time and have it checked and the oil changed. Got a long road trip tomorrow and want to see what it checks when I get home. After the last long trip it actually went back down. We'll see.

Update: Checked my level last night a hour and a half after I got home. Level checked at top of overfull hole. Went back out this morning before my trip and it checks 1/8" below the overfull hole where it has been for the last 4,000 miles. Seems it does not get a good check unless you let it set overnight(that's when I normally check and record it). Well we will see what happen after the trip now.

Update: Well didn't work out like I thought. Took my trip and checked the oil level next day and no change. But it was 30 degrees out and snowing that may have played a factor it the oil temp. But at least it didn't go up.

 

[Rviator]

I'll second this cool oil theory. An hour or so after a short trip I checked the oil. At first pull of dipstick it smelled like fuel and level was covering the twist in the dipstick. After a wipe and reinsert level was back down to just below the upper hole, where it was when changed some 2k miles ago. So it appears that small amounts of fuel may rise to the top then evaporate off with hot oil. FYI Most of my trips are of sufficient length to create a lot of heat in the engine.

 

[MotoWojo]

From a deductive approach, it really sounds like previous suspicions by many are true--that it's caused by the cooler not letting the oil heat up enough. Does everyone's oil level go down back towards normal after long trips?

I'd imagine the problem isn't fixed in 2020's either; they aren't being driven as much on short trips because no one commutes due to covid. And the majority likely haven't had to change their oil yet in 2020 on their new vehicle.

What would be a long trip? My daily commute is 50 miles round trip and I believe my fuel dilution is worse than most. I am about halfway to the 5000 miles that the Ford wants me to drive on this oil change and the level has been hovering around the top of the twist for a couple weeks now, Last time it was at that level, when the oil was changed, ~7.8qts was drained, so 1.6qts of fuel? On the bright side, the truck pretty much still runs like it did when it was new, although, I am worried for how long? That much fuel dilution must be slowly killing my engine?

 

[jinja]

What would be a long trip? My daily commute is 50 miles round trip and I believe my fuel dilution is worse than most. I am about halfway to the 5000 miles that the Ford wants me to drive on this oil change and the level has been hovering around the top of the twist for a couple weeks now, Last time it was at that level, when the oil was changed, ~7.8qts was drained, so 1.6qts of fuel? On the bright side, the truck pretty much still runs like it did when it was new, although, I am worried for how long? That much fuel dilution must be slowly killing my engine?

Yep sorry about that frustration friend, I read the whole entire thread conversation and saw your issue continue while others had fixes. Hang in there.

I wonder what the result would be for you and the levels if you used a dipstick or oil pan heater for a few weeks. Although 25 and then 25 miles should heat it really good...

 

[Texasota]

Yep sorry about that frustration friend, I read the whole entire thread conversation and saw your issue continue while others had fixes. Hang in there.

I wonder what the result would be for you and the levels if you used a dipstick or oil pan heater for a few weeks. Although 25 and then 25 miles should heat it really good...

I’m not sure if 25 miles is enough. You need enough miles to get the oil hot and then you need to drive some more to evacuate the fuel. Only speculation on my part.

 

[2020FX4]

I received my first test results back from Blackstone. Fuel % is in the "Typical" range they say..... I'll be testing again in another 5k miles.

 

[CO2Ranger]

I’m not sure if 25 miles is enough. You need enough miles to get the oil hot and then you need to drive some more to evacuate the fuel. Only speculation on my part.

Even if you're correct that it needs to be more than 25 miles, how can Ford justify that to consumers? It would be like Steve Jobs telling people they're holding their phone wrong because they screwed the pooch on their design. Not going to sit well with most owners.

 

[Floyd]

One thread doesn't define an overall problem.
My Ranger has 12000+ miles with about half highway miles and about half months of trips under 5 miles in town between trips. No issue with oil consumption or fuel in the oil. It has stayed right on the full mark at rest with no evidence of fuel. Oil change at 5000 mile intervals with Motorcraft 5-30 parasynthetic.
This is not to say that the problem does not exist, just an attempt to establish perspective.

 

[Blue Streak]

I am with Floyd. 25000 (S)miles all types of driving, 5 long haul tows, oil has always stayed at the full level. I have always checked oil level to see if I was low never to see if I gained oil. Sorry to see some having issues, & yes this thread does not really get to the heart of the problem.

 

[2ford]

I am with Floyd. 25000 (S)miles all types of driving, 5 long haul tows, oil has always stayed at the full level. I have always checked oil level to see if I was low never to see if I gained oil. Sorry to see some having issues, & yes this thread does not really get to the heart of the problem.

Okay I will bite, what is the heart of the problem that you and Floyd think this thread isn't getting too.

 

[Texasota]

Okay I will bite, what is the heart of the problem that you and Floyd think this thread isn't getting too.

I don't think there is any one single problem causing the issue. Maybe that is what Larry meant.

 

[Blue Streak]

I don't think there is any one single problem causing the issue. Maybe that is what Larry meant.

Exactly. There has been several different issues of cause with repairs that have not cured the problem & many that state we have no issues. No one seems to have an answer for either. So again why.

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