First regen today. 35k miles.

[Riperoo]

Obviously I drive a lot of highways, a lot, the bulk of my driving is on pretty wide open highways, I have a 2021 3.0 with about 36k on it, and have NEVER had a regen. 2 cross country trip and weekly 4 hour drives. Today, driving locally to the gym had my first ever notice of regen, drove around for about 15 minutes and it cleared, I have to say I was kinda surprised, figured I would never have one since I haven't up to this point and it was less than a 1/2 tank of gas since I had a nice 4 hour highway jam. Should I assume that it may be more frequent? DPF is getting older and just feeling its age? Thats my assumption anyway. Haha!!

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[Grayhound]

Are you talking about the evic screen telling you of a regen? I’m sure you’ve had a number of regens and didn’t know it.

I’m running a scanguage II it can yeh you total lifetime regens, but I used it to monitor dpf filter, regen on/off and turbo temps.

If you’re not running an aftermarket gauge it’s hard to tell if you’ve regen-ing completely down to 8% dpf

I’ve read for the health of the system you should monitor regen more thoroughly and burn down as low as possible each time.

 

[DubaiMarauder]

Regens are completely normal and should take place automatically while you're driving at above 35mph. If you start noticing more and more frequent regens, your DPF is probably filling up and getting clogged with carbon buildup and may need to either replace it or have it burned out if possible. I have no idea what this costs on a Wrangler, though I am sure I will find out sooner or later with my own, but from experience, a DPF filter removal and burn on a semi is a several day process. It take about 12 hours to remove, 12 hours to burn and 12 hours to reassemble and test, then they force it into a parked regen with a computer and if it passes, then its good to go. This process costs thousands of dollars for a semi. I would expect the process to be similar on a Wrangler, but not as lengthy, as everything is fairly accessible, thus costing less, but probably still over a grand at least. Im assuming if this becomes a requirement within warranty period that it should be covered, but God help you if you're out of that warranty period.

Other Diesel Wrangler owners feel free to correct me if Im wrong, but I'm fairly certain you missed a few regens somewhere along the line. 35K mi is a long time to go between regens. How many tanks of DEF have you filled up? The SCR system only uses DEF when its doing a regen.

 

[Riperoo]

Are you talking about the evic screen telling you of a regen? I’m sure you’ve had a number of regens and didn’t know it.

I’m running a scanguage II it can yeh you total lifetime regens, but I used it to monitor dpf filter, regen on/off and turbo temps.

If you’re not running an aftermarket gauge it’s hard to tell if you’ve regen-ing completely down to 8% dpf

I’ve read for the health of the system you should monitor regen more thoroughly and burn down as low as possible each time.

Interesting, do you need to get a scan gauge specifically for a diesel? I'm going to look into that. Thanks!

 

[GtX]

The JL gives zero indication when a Regen happens unless there is an issue.

 

[DubaiMarauder]

The JL gives zero indication when a Regen happens unless there is an issue.

This is correct, but there are secondary indications, like needing to refill DEF, higher than normal engine and oil temp and pressure during a regen, which one would not notice unless you're looking for it or watching the offroad pages gauges. I'm weird, when I do longer trips, that's what I have on the screen.

 

[Riperoo]

The JL gives zero indication when a Regen happens unless there is an issue.

I got one today saying exhaust filter nearing full, continue driving. Then it switched to regen in process continue driving. Would that indicate I have something heading toward failure?

 

[DubaiMarauder]

I got one today saying exhaust filter nearing full, continue driving. Then it switched to regen in process continue driving. Would that indicate I have something heading toward failure?

If it tells you to the filter is near full and keep driving, its preparing to go into regen.

 

[Riperoo]

This is correct, but there are secondary indications, like needing to refill DEF, higher than normal engine and oil temp and pressure during a regen, which one would not notice unless you're looking for it or watching the offroad pages gauges. I'm weird, when I do longer trips, that's what I have on the screen.

I litterally topped off my DEF tank hours before this happened, coincidence?

 

[GtX]

This is correct, but there are secondary indications, like needing to refill DEF, higher than normal engine and oil temp and pressure during a regen, which one would not notice unless you're looking for it or watching the offroad pages gauges. I'm weird, when I do longer trips, that's what I have on the screen.

Uh, I run a scan gauge 3 to monitor closely.

If you're relying on the EVIC or off-road pages then you don't know what you're rig is doing.

 

[Riperoo]

If it tells you to the filter is near full and keep driving, its preparing to go into regen.

So it does give you an indication?

 

[GtX]

I got one today saying exhaust filter nearing full, continue driving. Then it switched to regen in process continue driving. Would that indicate I have something heading toward failure?

If that were me, I'd be on the highway burning that thing out.

 

[DubaiMarauder]

So it does give you an indication?

Not during most regens, only when it REALLY need to do one cuz the filter is full. If you fail to keep driving, you can clog the filter and it can freak out and cause the engine to go into derate, then you have to be towed in to a dealer for a full DPF cleaning and repair.

 

[Riperoo]

If that were me, I'd be on the highway burning that thing out.

I'll be out there tomorrow for sure!

 

[Capricorn]

Obviously I drive a lot of highways, a lot, the bulk of my driving is on pretty wide open highways, I have a 2021 3.0 with about 36k on it, and have NEVER had a regen. 2 cross country trip and weekly 4 hour drives. Today, driving locally to the gym had my first ever notice of regen, drove around for about 15 minutes and it cleared, I have to say I was kinda surprised, figured I would never have one since I haven't up to this point and it was less than a 1/2 tank of gas since I had a nice 4 hour highway jam. Should I assume that it may be more frequent? DPF is getting older and just feeling its age? Thats my assumption anyway. Haha!!

You would have had regen multiple times. Even if your soot level never reaches 80%, Ecodiesel automatically does active regeneration every 750 miles or so. Those active regens happen silently unless it missed many regens and soot exceeds danger levels.

Passive regen - happens incrementally while regular driving once the DPF temperature gets high enough.
Active regen - happens silently when soot level in DPF reaches 80% or once every 750 miles approximately (whichever threshold you reach first. During the active regen, DPF soot is burned till it gets to about 8%. Sometimes due to interrupted regens, you may get a notification to drive till it completes the regen.
Forced regen - When you ignore the regen notifications and DPF reaches 100%, you need to take it to the dealer to perform a forced regen while the vehicle is stationary.

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