Fuel in oil

[Sarge104]

Third oil change for the Ranger, first sample to successfully make it to the lab...
Motocraft 5w-30 semi-syth used for all changes

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[Harley_Mane]

Good lord!!!!! I’ve gone 2000 miles on a change and never had it that full ?

That's just awesome! I really wonder which changes actually did that for you. Did you tune it before or after the change in what your catch can was capturing?

So far, I had a tune on for about 300 miles without any of that fuel/oil mixture in the can. I was working on filling up a gatorade bottle with how much I was getting before

 

[Jacob]

So far, I had a tune on for about 300 miles without any of that fuel/oil mixture in the can. I was working on filling up a gatorade bottle with how much I was getting before

I’ve noticed that I got more in it during the winter months. I can’t remember who said it but someone posted on here saying it could be water from condensation. I know it’s definitely a mix of petrol and water with some sludge looking stuff

 

[NvrFinished]

I’ve noticed that I got more in it during the winter months. I can’t remember who said it but someone posted on here saying it could be water from condensation. I know it’s definitely a mix of petrol and water with some sludge looking stuff

I have a very nice UPR oil catch can setup on my Mustang that works well. I use it because I frequently track the car at road courses. Because the can itself is mounted at the front and away from the engine, it can take a little bit of time for it to warm up with the engine compartment on cold days. When this happens, the can will collect condensation due to the warm gasses that enter and come in contact with the can before the can temp warms above the dew point. It's not enough to come close to filling the can though.

My guess is that with these mounts being far forward and the fact that a four cylinder is not going to build heat in the engine compartment as fast as a V8, these cans will collect more water in cold climates as they slowly warm up.

 

[OWSportninja]

I have a very nice UPR oil catch can setup on my Mustang that works well. I use it because I frequently track the car at road courses. Because the can itself is mounted at the front and away from the engine, it can take a little bit of time for it to warm up with the engine compartment on cold days. When this happens, the can will collect condensation due to the warm gasses that enter and come in contact with the can before the can temp warms above the dew point. It's not enough to come close to filling the can though.

My guess is that with these mounts being far forward and the fact that a four cylinder is not going to build heat in the engine compartment as fast as a V8, these cans will collect more water in cold climates as they slowly warm up.

The concern is FUEL though not water...

 

[NvrFinished]

The concern is FUEL though not water...

Yes, I realize that. However, there is definitely a lot of water in some of the photos of these cans that are almost full to the brim. I've dealt with it myself in my Mustang, but not even close to the extent that is shown here. However, it looks just like what I have pulled from my car in the cooler months.

 

[Fleckbass]

Hello all, just registered here. Been reading a lot of posts to learn about my new ranger.

Just checked my oil. It is slightly above the grid and still below the dot. It definitely has a fuel smell. Also seems to have some wear, black when whiped onto towel.

Purchased the vehicle less than a month ago with a little over 600 miles. Been using it for trips, one long one, and some driving around town. It now has 1903 miles.

I just wanted to check in here. I hope everyone gets good results with their vehicles. I know we paid enough for them. I'm hoping this one is as good or better than the last two Rangers I've had. Keep us posted on the fuel in oil observations.

Thanks,

Bruce

 

[Wade]

Yes, I realize that. However, there is definitely a lot of water in some of the photos of these cans that are almost full to the brim. I've dealt with it myself in my Mustang, but not even close to the extent that is shown here. However, it looks just like what I have pulled from my car in the cooler months.

I had the same thought about the water myself. So as a test I put the c

Hello all, just registered here. Been reading a lot of posts to learn about my new ranger.

Just checked my oil. It is slightly above the grid and still below the dot. It definitely has a fuel smell. Also seems to have some wear, black when whiped onto towel.

Purchased the vehicle less than a month ago with a little over 600 miles. Been using it for trips, one long one, and some driving around town. It now has 1903 miles.

I just wanted to check in here. I hope everyone gets good results with their vehicles. I know we paid enough for them. I'm hoping this one is as good or better than the last two Rangers I've had. Keep us posted on the fuel in oil observations.

Thanks,

Bruce

If it's still below the top dot I'd say you're safe! Keep an eye on it though. And you'll naturally have more wear on that first oil change just from the engine break in.

 

[Wade]

Yes, I realize that. However, there is definitely a lot of water in some of the photos of these cans that are almost full to the brim. I've dealt with it myself in my Mustang, but not even close to the extent that is shown here. However, it looks just like what I have pulled from my car in the cooler months.

I had the same to thought about water, even though I was living in hot, dry, west Texas. So I put the concoction into a spray bottle and sprayed it onto an open flame. Sure enough it ignited about as well as anything. So I ruled out water as a primary ingredient in that mix.

 

[Doc]

Hello all, just registered here. Been reading a lot of posts to learn about my new ranger.

Just checked my oil. It is slightly above the grid and still below the dot. It definitely has a fuel smell. Also seems to have some wear, black when whiped onto towel.

Purchased the vehicle less than a month ago with a little over 600 miles. Been using it for trips, one long one, and some driving around town. It now has 1903 miles.

I just wanted to check in here. I hope everyone gets good results with their vehicles. I know we paid enough for them. I'm hoping this one is as good or better than the last two Rangers I've had. Keep us posted on the fuel in oil observations.

Thanks,

Bruce

Due to the Fuel smell, Change it after break in.. 1000- 1500 miles..
Regards

 

[Dr. Zaius]

Mine was above the mark so I had the dealer change the oil at 2500 miles and note the level.

Now at 3600 miles and the level hasn't budged so I'm hoping it was just the break-in and rings seating.

 

[N. J. Jim]

Mine was above the mark so I had the dealer change the oil at 2500 miles and note the level.

Now at 3600 miles and the level hasn't budged so I'm hoping it was just the break-in and rings seating.

Found some interesting material on fuel dilution at Spectro Scientific, white paper!

 

[MotoWojo]

Update: After dealer swapped out all new injectors and HPFP, the first 300 miles the oil level rose from just above the hash marks to the max level hole, for the next 700 miles it hovered around the max level hole and I was thinking I might be good to go, but the last 400 miles it has been creeping up again and is now 3/8in above the max hole. So in 1400 miles it went from just above the hash marks to 3/8in above the max mark which is about where the dealer had originally collected an oil sample that came back as 12% fuel dilution. I will be calling the dealer tomorrow, but I don't know what there is left to try? I have no confidence this motor is going to last a while. Shame, I love the truck otherwise.

 

[N. J. Jim]

Update: After dealer swapped out all new injectors and HPFP, the first 300 miles the oil level rose from just above the hash marks to the max level hole, for the next 700 miles it hovered around the max level hole and I was thinking I might be good to go, but the last 400 miles it has been creeping up again and is now 3/8in above the max hole. So in 1400 miles it went from just above the hash marks to 3/8in above the max mark which is about where the dealer had originally collected an oil sample that came back as 12% fuel dilution. I will be calling the dealer tomorrow, but I don't know what there is left to try? I have no confidence this motor is going to last a while. Shame, I love the truck otherwise.

I would like to know what makes this level hold at or around the upper hole. Mine held there for 1200 miles. I changed the oil because I had dilution from the full hash mark to the upper hole after HPFP change. I filled it to the full hash mark and in 200 miles I'm about an eighth inch from the upper hole. Drained 12ozs. of oil off today with 210 miles on the oil, it's black looks like 3000 on it. Has to be wearing the hell out of the motor!

 

[HenryMac]

I would like to know what makes this level hold at or around the upper hole. Mine held there for 1200 miles. I changed the oil because I had dilution from the full hash mark to the upper hole after HPFP change. I filled it to the full hash mark and in 200 miles I'm about an eighth inch from the upper hole. Drained 12ozs. of oil off today with 210 miles on the oil, it's black looks like 3000 on it. Has to be wearing the hell out of the motor!

Update: After dealer swapped out all new injectors and HPFP, the first 300 miles the oil level rose from just above the hash marks to the max level hole, for the next 700 miles it hovered around the max level hole and I was thinking I might be good to go, but the last 400 miles it has been creeping up again and is now 3/8in above the max hole. So in 1400 miles it went from just above the hash marks to 3/8in above the max mark which is about where the dealer had originally collected an oil sample that came back as 12% fuel dilution. I will be calling the dealer tomorrow, but I don't know what there is left to try? I have no confidence this motor is going to last a while. Shame, I love the truck otherwise.

You folks that are having "fuel in oil" issues, what fuel (Brand and Octane) are you using?

The reason I ask is I was reading up on how the knock detection system works in the ecoboost and I am wondering if the fuel in the oil has some connection with fuel grade.

I've been running 91 octane in our Ranger, with no fuel dilution issues.

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