CONFIRMATION of the JL Wrangler 3.0L Diesel Engine
- Thread starter wayoflife
- Start date
jeffj
Caught the Bug
They are expensive, but they really hold there value. New diesels don't stink!
Sent from my iPhone using WAYALIFE mobile app
Ddays
Hooked
I'm a total newb with diesels. Will this engine have to use that DEF fluid or is that only in bigger engines?
Turbotastic
New member
Pretty high chance it will have a DEF system
Ddays
Hooked
I used my Google-fu skills & looked up DEF and have a decent knowledge of it but still have a couple questions:
Assuming a 1 gallon DEF reservoir and a 50:1 ratio you'd need to refill the reservoir at what, every 3rd or 4th tank full of diesel?
What happens if you run out of DEF? Will the engine still operate? Is this an issue with guys that have diesels?
A 2.5 gallon container is roughly $12 so I guess it's not really that expensive, but still, it's one more thing to have to buy.
Edit: found this on www.discoverdef.com: "Diesel Exhaust Fluid (DEF) freezes into a crystalline slush at 12°F (-11°C) and should not be kept at temperatures above 86°F (30°C)"
DEF looks to be a pain in the arse. What do you guys do in the SW where it's 110*?
Assuming a 1 gallon DEF reservoir and a 50:1 ratio you'd need to refill the reservoir at what, every 3rd or 4th tank full of diesel?
What happens if you run out of DEF? Will the engine still operate? Is this an issue with guys that have diesels?
A 2.5 gallon container is roughly $12 so I guess it's not really that expensive, but still, it's one more thing to have to buy.
Edit: found this on www.discoverdef.com: "Diesel Exhaust Fluid (DEF) freezes into a crystalline slush at 12°F (-11°C) and should not be kept at temperatures above 86°F (30°C)"
DEF looks to be a pain in the arse. What do you guys do in the SW where it's 110*?
Last edited:
Turbotastic
New member
My parents had an X5 diesel for a few years. It went through a tank of DEF every 4-5K miles. Depends on how you drive though. More aggressive driving will use more DEF. When the DEF was low, a warning would show saying that if you run out of DEF, the engine won't start. I'm not sure if that's a BMW thing or a diesel thing though.
One annoying thing I remember about that car was having to use an adapter nozzle at some diesel pumps. This means possibly getting diesel on your hands or clothes. Generally even touching a diesel pump means smelling like diesel for a good part of the day, in my experience.
jeffj
Caught the Bug
I've had a diesel for about 10 years and they are really quite and clean. The DEF fluid is a pane in the ass, but not that bad either.
If you run out it will go into limp mode, which is not an option.
I have a 5 gallon tank and it ruffly get me about 6000 miles unless I'm pulling a load and then that number goes down. But with that said I have a huge engine so I'm not sure what the 3.0 would do.
And one more thing, diesels are awesome to run, with all the torque at low rpm's it doesn't shift that much. And the engines last a lot longer.
Sent from my iPhone using WAYALIFE mobile app
AllAmericanInfidel
Caught the Bug
I'd definitely consider a JL Rubicon with a diesel. I'd prefer a JT with a V8, but we all know that will never happen lol.
Sent from my iPhone using WAYALIFE mobile app
Sent from my iPhone using WAYALIFE mobile app
DannyD
New member
This is awesome don't have much knowledge of diesels but have always been intrigued by their durability
Sent from my iPhone using WAYALIFE mobile app
Sent from my iPhone using WAYALIFE mobile app
TrainWreck618
Caught the Bug
That would be really crazy to get 30mpg in a Wrangler:shock: Cant wait to see the specs
MR.Ty
Token East Coast Guy
The MPG is definitely a big plus for me. A co-worker has a Ram 1500 Ecodiesel and claims to get 32mpg if he keeps it under 65mph on the highways.
Ddays
Hooked
resqman911
New member
Ok I'm stupid when it comes to diesels. How do these HP and Torque numbers translate to a Jeep running 37-40s and loaded down with bumpers winch etc.....
I have a 2011 with the 3.8 pushing 37s and considering a V8 swap in the future, would this diesel provide the similar road manners as a 5.3 ? Or 6.2 ?
Sent from my iPhone using WAYALIFE mobile app
I have a 2011 with the 3.8 pushing 37s and considering a V8 swap in the future, would this diesel provide the similar road manners as a 5.3 ? Or 6.2 ?
Sent from my iPhone using WAYALIFE mobile app
MR.Ty
Token East Coast Guy
Weird but I don't see the Ecodiesel as an option under any of the GCs on Jeep's mobile website. On the Ram's website it is a $4,270 option.
GoldenJK
New member
Too bad diesel is only offered with the 8speed auto. It's a good transmission but a manual is way more fun to drive.
Sent from my iPhone8 using WAYALIFE mobile app
Sent from my iPhone8 using WAYALIFE mobile app
SDG
Caught the Bug
Yeah, safe guess is usually about $5k at least for trucks, can't remember what it was in the GC, maybe 3800...
Sent from my SM-G955U using WAYALIFE mobile app
madstiles
New member
Am I the only one thinking fuck a diesel I want a v8!! 
Sent from my SAMSUNG-SM-G935A using WAYALIFE mobile app
Sent from my SAMSUNG-SM-G935A using WAYALIFE mobile app
It will be interesting to see this one pulled off. My wife has that engine in a 2014 Grand Cherokee. It's a beast of an engine. Gets great mpg too. However, in an extreme offroad application with the DEF system, I would think that its going to be fragile. Something that Jeep doesn't really seem to take into consideration. Plus it has a buttload of turbolag. When the power comes on, its ON! I've almost launched it across a ditch trying to get out of the way of an on coming truck. This will be interesting in a crawling application.