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Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

252K views 1K replies 168 participants last post by  dsljp 
#1 ·
Ive received several requests for a separate forum....and you guys know I like to give the members what they want! So here ya go.....a forum for our new ecodiesel community!

Enjoy!
 
#1,346 ·
I have not left the planet. Just lurking in the shadows. Just over 16,000 miles with a calculated ave of 27.1 mpg. Also just returned from the southwest ... 3,146 miles with 28.979 trip average. I am still in love with this mall runner Summit. The adaptive cruise with stop and go is just plain wild! Trust the technology I keep telling myself. Still happy in South Dakota with no issues...yet!
 
#1,347 ·
Turned 40,000 km, (or 25,000 miles for our friends to the south) today on my Summit Ecodiesel after almost a year on the road.

Quick Summary:

Zero issues to speak of.

Uconnect - still the best multimedia entertainment system I have seen. Yes I still have a now and again jittery rear camera but this is nothing more than a tiny issue that I know will get fixed with an update in the future. The Summit's audio package is simply outstanding and it makes me smile every day.

Fuel Economy - lifetime 27 Mpg or 8.7 l/100 - almost all highway but I am not gentle on the throttle at all - pleading the 5th on any more detail

Towing - tows like a tractor. 6500 lb loaded horse trailer is a breeze, uphill and down.

Oil Service Interval - Exactly 16,000 km or 10,000 miles as promised

DEF Consumption - at least at 24,000 km so far on my last fill - with 25% left

Drive - All is as it should be, on road and off. Air suspension is perfect

Fit and Finish - no rattles, shakes or other complaints.


Overall - very very happy new Jeep owner - this is my first, after years of looking through a 3 pointed star...
 
#1,349 · (Edited)
While its true that they are separate systems, it could be that the bio fuel is thinner than regular diesel, and residual fuel is leaking past the rings into the crankcase when you shut it off. There are probably other possibilities, but I would first stop using bio and switch to regular diesel (after an oil/filter change, of course). Then check to see what's happening before going further.

EDIT:
Just did a web search on "biodiesel in crankcase", and found many articles about this subject. If I under this issue correctly, it seems that the regen system for burning particulates in the exhaust adds a shot of fuel when the cylinder is at the bottom of its travel as part of the process. It's this fuel that seeps past the rings and into the crankcase. Because bio diesel has a higher level of moisture in it, it doesn't dissipate in the crankcase as does regular diesel, hence the more noticeable accumulation of fuel and reducing the oil change interval.

So, as I said originally, I'd quit using bio and switch to regular diesel and see what effect that has. I decided not to use bio when I bought mine.
 
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#1,355 ·
My daytime running lights don't seem to turn on any more, or perhaps they never did? Which light bulbs are the daytime running lights? Don't the LED lights that go around the main headlight turn on with the daytime running lights or are they the running lights? I've always just had the light switch in the A (auto) position. I had my wife sit in the car and put in it Drive while I watched, no lights came on with the switch in the Auto position.


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#1,362 ·
I'm curious about the cost of diesel fuel as it relates to gasoline prices. Before I ordered my car (still waiting) I did a random check and diesel was about 10% higher than regular. Since the ecodiesel gets roughly 20% better mileage than the V-6 gas engine I figured it was a smart choice. Since the cost of gasoline has been declining sharply the past few months I have noticed the delta between regular and diesel is growing.

Does anyone have any past experience or industry insider knowledge to have a good guess of what the price differential may do in the future, and/or if there is any correlation between them.

I have read that there are more taxes on diesel (I knew that) and since there is less demand than for gas, the refineries charge a premium for it. But I'm not sure why the difference in price should not be a relatively constant percentage.

If this is already covered in another thread, I'd appreciate being pointed there. Thanks!

PS - I know that other posters have said that economy is NOT the reason to buy the diesel, but for a lot of us I'll bet it is.
 
#1,366 ·
I'm curious about the cost of diesel fuel as it relates to gasoline prices. Before I ordered my car (still waiting) I did a random check and diesel was about 10% higher than regular. Since the ecodiesel gets roughly 20% better mileage than the V-6 gas engine I figured it was a smart choice. ....................



PS - I know that other posters have said that economy is NOT the reason to buy the diesel, but for a lot of us I'll bet it is.

A better comparison is between the diesel and the hemi, not the V-6. Yes the hemi may be faster off the line, but when it comes to things like towing and the purchase price, they are more comparable. Then you are talking more like a 50% difference in fuel economy. We went on a camping trip with friends, both towing trailers around 5,000 - 6,000 lbs. We averaged 17-18 mpg, they got 9- 10 with their hemi GC. Huge difference, and they had to stop about every 300 miles for fuel, we easily went 450 miles or farther.

If you just look at fuel economy, don't do any towing, impact on the environment isn't an important consideration, won't keep the vehicle at least 4 years, don't do a lot of freeway driving, etc etc, then the V-6 is probably the better bargain, and for many people that will be the right choice. For us, environmental impact was a huge part of the consideration and we were willing to pay the higher purchase price and price at the pump, and that's why my wife and I both drive diesels. Not unlike many who pay the premium price for hybrid vehicles.


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#1,365 ·
One other contributing factor to consider is that in the fall, farmers are using more diesel for harvesting of crops-and at least in this general area, diesel is pegged a little bit higher as sellers feel they can capitalize on the market demand. in about two short weeks the price of diesel will go down as the full harvest will draw to a close. I would expect to see gasoline prices start to rise as we get closer to the American Thanksgiving holiday.


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#1,367 ·
I tow frequently but also go on several long road trips every year. Plus I like the ability to off road as well so the WK2 fits the bill (it's a midsize SUV with full size pickup capability). The diesel (this is my 2nd as I had a WK diesel as well) really puts it over the top when I can get a real world 50% better mpg towing (usually can make it to the destination and drop off the trailer before I'd have to refuel which is a great capability). I also really enjoy how calm and relaxed it is when towing with a diesel as the engine doesn't have to hold a frantic RPM level to make it up inclines (so I'm better relaxed when I reach my destination). Even when not towing I can get up to 800 miles a tank if almost all highway miles then to add to the fact that I can still get mid 20's City where I live (I leave buffer distance when in heavy NYC traffic and the diesel just plugs along at 1,500 RPM). I average high 20's combined where I live.
 
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