Is the 2.0 regular engine has issue with Fuel disolution?

[Patthe]

So I currently have a 2021 Jeep Wrangler 4xe. I have a LOTS of issue with FORM (Fuel and Oil refresh mode) due to the oil dilusion.
I plan to possibly upgrade to a regular 2024 Sahara. Problem, it only come with the 2.0 turbo in the Sahara trim.

My question is, do I expect any more issue with OIL Dilusion with the regular 2.0 turbo ????

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[Rustynail11]

have a 22 JLUR with the 2.0 and after almost 24K miles have zero issues

 

[Shibadog]

20 with the 2.0-regular fuel for the life of the car-Zero Issues

 

[Headbarcode]

My 19 JLUR with the eTorque 2.0 has over 80k on the odometer, and has had zero oil diluting issues. Note, I change the oil and filter every 5k, fully ignoring the oil life meter.

 

[JerseyJeff]

Get yourself an oil air seperator. You'd be surprised how much oil is in your intake from the pcv system.

 

[Bleda2002]

Form in the 4xe has nothing to do with and actual measure of fuel/oil dilution as it's just a formula that decides if you possibly have fuel/oil dilution issues. All engines get fuel oil dilutions but bringing the oil to temp burns it off.

Unless there is something actually wrong with the computer you just need to take a longish drive to get the oil up to temp for a bit. If you are in a cool climate you can try the Mopar winter front (or a piece of cardboard Infront of the radiator in the grille) to hold some heat in. There were also some tsbs/flashes to change the form formula and have it pop up less often.

Edit: I don't mean to come off as form hasn't plagued people in cold climates, it has but there are some ways to try to get around it if you want to run full electric instead of just hybrid again.

 

[Patthe]

Form in the 4xe has nothing to do with and actual measure of fuel/oil dilution as it's just a formula that decides if you possibly have fuel/oil dilution issues. All engines get fuel oil dilutions but bringing the oil to temp burns it off.

Unless there is something actually wrong with the computer you just need to take a longish drive to get the oil up to temp for a bit. If you are in a cool climate you can try the Mopar winter front (or a piece of cardboard Infront of the radiator in the grille) to hold some heat in. There were also some tsbs/flashes to change the form formula and have it pop up less often.

Yeah something is wrong and jeep has no fix for my issues. I do have the grill cover at the front and when in in FORM, after a week and less then 500 km it ask me to change the oil..... that main reason I want to get a regular wrangler. Did not had issue with my oil last winter. I got a few software update and since I have my oil going to 0% in very short time. Only when I'm in form tough.

 

[Bleda2002]

Yeah something is wrong and jeep has no fix for my issues. I do have the grill cover at the front and when in in FORM, after a week and less then 500 km it ask me to change the oil..... that main reason I want to get a regular wrangler. Did not had issue with my oil last winter. I got a few software update and since I have my oil going to 0% in very short time. Only when I'm in form tough.

Oof that sucks then, definitely seems to be some computer issue. I don't blame you for wanting to get out of it.

 

[Patthe]

Oof that sucks then, definitely seems to be some computer issue. I don't blame you for wanting to get out of it.

That why I wonder about the 2.0 turbo. My previous one was the regular V6 and never had oil issue with that one. That why I'm like nervous about the 2.0 engine. I do short distance 10 km ( 6.2 mile ) to work and back Monday to Friday. Everywhere I go in my small town is less then that. That why I got the EV. But just keep getting issues sadly ?

 

[NWJeepr]

Help me understand... What makes you think you have a fuel dilution issue? I assume you've read in the owner's manual about the specific conditions in which FORM/ Fuel-Oil Refresh Mode is activated.

To answer your question about the 2.0, the oil is more likely to experience fuel dilution issues because the 2.0 has direct injection whereas the 3.6 does not (sequential/multi-port fuel injected). However, when operated normally and the oil is regularly brought up to temperature (either by driving, or the vehicle activating FORM), it should be minimal and well within in limits during the specified oil change interval.

If you pull your dipstick and it smells a bit like fuel, welcome to modern vehicles, but that's not always indicative of a problem. The only way to be sure is to conduct an oil analysis. Blackstone Laboratories is one such outfit that can do this for you.

 

[NWJeepr]

Also, tell us about the oil change warning. Are you 100% sure the oil life monitor was reset previous to it alerting you after 1 week or 500km? To me it sounds like the monitor was never reset or something happened in-between with cycling the engine while the vehicle wasn't moving.

 

[Patthe]

HI

I assume it is fuel dilution, but I think the real problem is an software update that think it is fuel dilution as I had no issue the first winter.

Help me understand... What makes you think you have a fuel dilution issue? I assume you've read in the owner's manual about the specific conditions in which FORM/ Fuel-Oil Refresh Mode is activated.

To answer your question about the 2.0, the oil is more likely to experience fuel dilution issues because the 2.0 has direct injection whereas the 3.6 does not (sequential/multi-port fuel injected). However, when operated normally and the oil is regularly brought up to temperature (either by driving, or the vehicle activating FORM), it should be minimal and well within in limits during the specified oil change interval.

If you pull your dipstick and it smells a bit like fuel, welcome to modern vehicles, but that's not always indicative of a problem. The only way to be sure is to conduct an oil analysis. Blackstone Laboratories is one such outfit that can do this for you.

 

[STW]

That why I wonder about the 2.0 turbo. My previous one was the regular V6 and never had oil issue with that one. That why I'm like nervous about the 2.0 engine. I do short distance 10 km ( 6.2 mile ) to work and back Monday to Friday. Everywhere I go in my small town is less then that. That why I got the EV. But just keep getting issues sadly ?

That does seem like the perfect use-case for the 4XE. I'd follow what NWJeeper and others are saying to make sure you really have a problem. It seems possible as NWJeeper suggests that going into FORM mode is not indicating a problem, only that your drive trips are short enough that oil temp is not getting hot enough to burn off fuel so it goes into FORM mode to accomplish that.

That's what I'm getting so far from the thread, but I may not have a grasp of the problem. My own 2.0T is doing fine with no dilution issues, though on my short drives it's running the whole time so warms the oil up more than your 4XE 2.0T--yours may run for shorter periods if it's able to use the battery most of the time on your short commute.

Where did you get the grill blanket? Do you have a link? I may have to try that for winter weather where I am.

 

[NWJeepr]

HI

I assume it is fuel dilution, but I think the real problem is an software update that think it is fuel dilution as I had no issue the first winter.

But FORM activating isn't detecting fuel dilution, it's an algorithm designed to prevent fuel dilution and stale fuel. It knows nothing about the state of your oil or fuel, just that it has to run on a specified interval to help prevent those issues.

Perhaps a software update increased the frequency on which FORM activates; or; now that you've been primarily operating in EV-only mode for a year (and through a season of cold temperatures), it runs more often simply because you aren't running the engine enough on your own or through normal combustion-engine driving to prevent fuel/oil issues.

If I owned a 4xE I'd invest a lot of brain cycles to understand exactly how/why these things operate versus assuming you need a new Wrangler because of an assumed issue. That's a totally different thing if you WANT a new Wrangler just for the sake of wanting a new one, that needs no explanation

 

[Patthe]

Mine is currently on sale for 120$ CAD if you are in canada ?. I got the deform for next winter if I still have it. It it the oem one from jeep.
I don't remember the mopar number for it.

That does seem like the perfect use-case for the 4XE. I'd follow what NWJeeper and others are saying to make sure you really have a problem. It seems possible as NWJeeper suggests that going into FORM mode is not indicating a problem, only that your drive trips are short enough that oil temp is not getting hot enough to burn off fuel so it goes into FORM mode to accomplish that.

That's what I'm getting so far from the thread, but I may not have a grasp of the problem. My own 2.0T is doing fine with no dilution issues, though on my short drives it's running the whole time so warms the oil up more than your 4XE 2.0T--yours may run for shorter periods if it's able to use the battery most of the time on your short commute.

Where did you get the grill blanket? Do you have a link? I may have to try that for winter weather where I am.

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