diesel Grand Cherokee mpg

[Jason911]

27mph city eh? I'm tossing the BS flag. If you're getting that number from the DIC, be aware that it's usually fairly optimistic, and that real mileage will be lower. Either that or your "city" driving means 20 miles on a freeway through the city, or a lot less stop and go than most people's city drive. ?? I'm even more suspicious of your city number, given that your absolute best is 34... Which also sounds more like a DIC mileage than true. ??

We have a Liberty CRD, which is a smaller car with a smaller engine, and even it doesn't average that well when driving in stop-and-go traffic. It'll get low 20's if you're really nice to it and don't do much stopping. We can get 30 on the highway at the best, at 65mph. At a true 30mpg, the DIC tells us it's getting about 35mpg. And at 20 true, the DIC will say about 23.

If you guys are quoting DIC numbers, you might want to hand check them over a few tanks. You'll probably find out you're not getting quite the mileage you think you are...
But of course, YMMV.
Chris

Through any flag you want to - it's for DIC(s) like you that I back up all my claims with actual imperical data and fuel Reciepts, with hand calculations compared against the EVIC that the new 2014-and later Grand Cherokee's have. The fact that your calling bs and then comparing my 3.0L V6 turbo diesel/8spd combo against your 4 cylinder is more like bs to me, and to the rest of us. And just a FYI - city for me is 25-35mph w/stoplight so, so yes, I can actually get 28mpg city. And the next trip up to the cabin and back I'll post those bladder busting miles and fuel Reciepts so you can try to debunk those to.

 

[SSF556]

ha didn't take long for this to become a pissing contest...always happens.


Sent from my iPad using Tapatalk

 

[1stDeuce]

Sorry. My BS comment was for humor, but tone is hard to convey in words.

Those numbers were just too good for me to believe and I'm used to people trusting and posting the DIC numbers blindly any claiming better mileage than they actually get. Didn't mean to offend, only to correct if that was the case. Please continue to feel great about your excellent mileage.

 

[Terex]

And there really is a big difference in driving habits among individuals. No one's EVER accused me of being slow, but the older I get, the more I flow. I see traffic patterns, I never floor it unless I'm passing someone, etc., etc. And I don't mean the craziness of a lot of Prius owners. I just try to be efficient.

Hey, I average close to 20 mpg in my '14 Rubicon 2-door, and it's a brick. Living at 7600' helps!

 

[Terex]

I rented a Ram 1500 with the EcoDiesel and a flat bed trailer to go get a broken Audi in Longmont CO. I averaged 24.6 mpg pulling a 2500 lb empty trailer there and 19.4 overall. Didn't check the mileage on the leg back but must have averaged 14 or 15 pulling a 6500 lb load. And doing a 1000 mile round trip in a day from Utah to Colorado, I definitely wasn't doing 55 or 65. I was extremely impressed with this engine and how it would effortlessly pull a load over mountain passes.

Fun! I love doing crap like that. Not at the time, but upon reflection…I should try to break more things.

 

[echo7tango]

My 22.3 MPG lifetime over 20,000 miles is a hand calc'd value. I keep a fuel log and keep a running total of gallons I've put in.

 

[Billygoround]

Try putting an exhaust and a chip in it. You'll get more power and better mileage

 

[echo7tango]

Try putting an exhaust and a chip in it. You'll get more power and better mileage

Maybe, but no thanks. I want to keep it stock. I intend to keep this rig for 300,000 miles.

 

[brained]

We're getting a tank average of 22 (lots of stop and go on our 3 mile commute to work). In Oregon we can see trip averages of 30. On Idaho freeways it drops to 28.
We have a 28 ft Jayco (7000 Gross) that we'll pull from Idaho to Sisters Oregon next month - I'll post back up after that.

Didn't cross any scales but based on previous weights I'd say we were 6000 to 6500 lbs:

 

[STANG302]

Not the Jeep but I have about 9K miles on a 2014 Ram 1500 Eco Diesel. And am averaging to and from work (70 mile round trip) between 25 -26 mpg hand calculated!

Surprised to see lower mileage on the grand Cherokee.

 

[matt t]

My wife has a 15 gc 4x4. She averages 28 mpg driving to and from work on back roads. One of our favorite vehicles we have owned.

 

[Longtallsally]

I really like the GC (just about bought one as opposed to the JKUR we have now) and think the diesel option is pretty amazing (and it's what we would have purchased if we got one).

However, in my opinion, that average mileage is pretty poor for the premium paid and again, in my opinion, kind of shuts up all the whining about a diesel everywhere. Personally, for the added cost of the VEHICLE, it's not a dramatic improvement in economy.

In Laws have a very nicely equipped GC (all the bells and whistles, just no big motor) with the Pentastar that I know it won't tow or is as powerful as the diesel, but it gets that or better. Personally, it looks like a bit of waste unless you are towing a lot pretty often.

 

[Dalko43]

I really like the GC (just about bought one as opposed to the JKUR we have now) and think the diesel option is pretty amazing (and it's what we would have purchased if we got one).

However, in my opinion, that average mileage is pretty poor for the premium paid and again, in my opinion, kind of shuts up all the whining about a diesel everywhere. Personally, for the added cost of the VEHICLE, it's not a dramatic improvement in economy.

In Laws have a very nicely equipped GC (all the bells and whistles, just no big motor) with the Pentastar that I know it won't tow or is as powerful as the diesel, but it gets that or better. Personally, it looks like a bit of waste unless you are towing a lot pretty often.

The diesel engine going into the Jeep is a huge deal and long overdue (at least for the American market).

But just like everything else in life, it's relevance to each individual depends on their personal situation. Someone who is towing a lot and/or planning on long duration trips into less civilized locales will benefit from a diesel in several ways:
- better mpg (I know people like to argue that there is no mpg difference between gas and diesel engines, but there is, it's been proven). Better mpg means more fuel range, less stops for gas (which is important for people who like to venture off the beaten path).
- better towing/hauling capabilities. It's a lot easier ($-wise) to hitch up a trailer or load up the rig and go; the mpg will dip, but you'll still see better returns then what you see from a gas engine.
- longer engine life. Diesel engines, if properly maintained, should have no problem getting into 350k mile territory and well beyond.
- less CO2 emissions though there are other pollutants, like Nitrous Oxide (which has its own harmful effects). The US laws/regs require extensive exhaust treatment for these pollutants, so I dont know how much they are affecting us here in the US (in Europe and rest of the world, there are no such laws, so diesel emissions have become much more of a problem).
- diesel has widespread availability just about everywhere in the world, whereas good octane gasoline may be hard to come by in many places.

Like I said, though, these aspects may not be applicable to all Jeep drivers. Someone just looking to do daily commutes and an occasional foray into the wild may not be willing to pay the extra cost of the diesel engine and fuel.

 

[jpat30]

^^^Well Said^^^

 

[smlobx]

I have over 18K on my '14 GC Limited Ecodiesel and have averaged 28.2 MPG from inception.
Most of my driving is on rural roads (40-50 MPH) and my mileage has ranged from 21-31 MPG.

I love the torque and the 8 speed tranny is very smooth.
I'm going to take it to Expo East and hope to run the Land Rover course and see how it does as I've yet to put it in low range yet...