Like the post said, Jeep made us wait a while to get the oil burner in the Wrangler. But now it's here, and according to KBB, it's a hit.

 

I think this is totally awesome that Jeep is got a new powerful diesel option. I swear they missed the mark with the JK model broken ground in 2007. The JK when introduced should have had V6 3.8 / V8 4.7 / V8 5.7 engine options. Jeep Grand Cherokees had 4.7 and 5.7 options so why not the Jeep Wrangler? Maybe not even offer a 3.8 in 2007 just a 4.7 V8 or the Hemi. The 4.7L V8 is super proven and reliable engine, the extra two cylinders and displacement would be a nice welcome in place of the 3.8 V6.

 

The V8 would be awesome, but I think the problem is it doesn't really fit? At least to OEM standards?

 

Yeah who knows, could have been crash test issues, and whole other bunch restraints.

 

Bet it was/is CAFE (Corporate Average Fuel Economy) requirements.

 

Trouble with CAFE is that it is the average economy across a manufacturer's entire fleet. So because everyone has to drive pickups (god knows why) then other models suffer to make up the average. That's why they push those little $hit box mobile coffins everywhere to get the average economy up, . What the CAFE requirements should be is by vehicle type where a pickup is in its own class, car in its own and SUV etc. Then you would see more diesels everywhere and better gas engines across the non-pickup types. And I thoroughly believe that a properly factory tuned Hemi would be at least equal gas mileage and way more power than the useless Pentastar we have now.

 

I haven’t seen the reviews of the Eco Diesel yet. I am going to presume it has to use DEF fluid. That will likely be the problem.
Many manufacturers are struggling with this system. Isuzu Trucks had to get an exemption from the EPA, Cummins is struggling. We just traded our 2016 Range Rover at 100k miles because it was unfixable. There are DPF problems. Ours developed an issue that the “quality” of the DEF fluid was insufficient an will not restart in 230 miles, until it counts down to zero. A complicated reboot by the deler would zero it out, only to have it happen again. Dealer had 7 vehicles all stranded for the same reason and no answer from Land Rover. All the Europeans rely on basically the same system. You can’t use these for short trips, if you drive one of these vehicles with this system you had better be going somewhere serious, at least an hour, to get everything hot and stay hot or the DPF will clog up.
The RR ran perfect, the mileage was a big draw and a terrific road trip vehicle but was no longer dependable. I would love to have a diesel in our newly purchased Wrangler, but it has to be dependable. RR got 29 mpg, Wrangler gets 19, but runs everyday no drama.

 

Yes unfortunately the diesels need to be worked. We have an Audi Q5 TDI that we will never sell because it cannot be replaced. In winter we run it up a hill near us to warm it up for the same reason you are talking about and it cools down a long hill in winter and goes back into a regen mode. Only done that since the Dieselgate thing when they did the software upgrade for us to receive the $7300 cash. So now we spend $2500 to go back. Hard takeoffs whereever possible to get that turbo hot. It will be the same with a JL Diesel - I am going to fix my audi problem this week. Removing all the DPF etc and turning it into a less polluting more efficient vehicle and HP goes to 270 from 240 and Tq from 427@1700 to 485@1700. Am thinking of the JLUR Eco myself and will do the same once the engine has proven itself and may even install a JLU fuel tank and delete the DEF tank even though DEF is harmless and does convert NOx to Nitrogen and water vapor out the end.