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Old 05-30-2019, 06:05 AM
browningv308 browningv308 is offline
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Default Jeep Grand Cherokee with a diesel



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Anyone out there own one? Looking at the 07-08 WK 3.0 CRD diesel with QD2 4x4 system Is it worth the extra maintenance. Has it been reliable?

Currently have a Discovery 2 so working on a vehicle is 2nd nature And with the jeep I like that the 4x4 system is close to the Land Rovers setup.

I would imagine the diesel gets better mileage than the Hemi Jeep and the Land Rover combined and having a diesel engine would make it unique as well.
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Old 05-30-2019, 06:38 AM
Brettny Brettny is offline
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Cosidering you own a land rover i would think it would be less maintenance. Still more than the gas model though. Is the extra fuel cost in diesel worth a few MPG...idk. to me no.
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Old 05-30-2019, 07:18 AM
browningv308 browningv308 is offline
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13 mpg Hemi vs 19 mpg diesel Around here gas and diesel are about the same price Lets say the average Hemi powered Jeep loaded down with a weekends worth of camping gear and people driving around in the mountains gets 11 to 12 mpg while the same diesel version and load gets 18 mpg If you have a 5 gallon rotor pack of fuel then that buys you and extra 90 miles in the diesel and only 55 miles in the gas Jeep.
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Old 05-30-2019, 07:25 AM
OliverR. OliverR. is offline
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I bought a GL320 Mercedes for the wife a little while back. It has the OM642 v6 diesel that your thinking of.

Her car has 200k on it, gets 20mpg city. About 23-24 Hwy, And runs like a top. The all time transfer case was bad when I bought it (chain tensioner mount in the case breaks and the chain skips, causing a popping noise). Has a Benz 6 speed trans that are known to be very, very strong. The truck is geared low it seems like, but the motor has no problem revving out to 90mph+.

Her truck has started to leak oil, and its Likely the oil cooler seals. Expensive job if you have it done, but I'll do it myself.

One more thing. The later years (08ish) had adblue smog equipment added to it. They requires DEF fluid. The engines make more power and run cleaner, but there is a lot of equipment on them that likes to fail. I got my 2007 just for that reason.
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Old 06-15-2019, 09:57 PM
cheepsk8 cheepsk8 is offline
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I had an 08 wk with the 3.0 diesel. The thing I didn’t like was changing oil. It held ten quarts of synthetic oil. I loved the torque. I rarely had it downshift on hills.
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Old 06-27-2019, 07:04 PM
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Central Scrutinizer Central Scrutinizer is offline
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Quote:
Originally Posted by cheepsk8 View Post
I had an 08 wk with the 3.0 diesel. The thing I didnít like was changing oil. It held ten quarts of synthetic oil. I loved the torque. I rarely had it downshift on hills.
You can probably extend the life of the synthetic by extra filtering and having its oil tested by Blackstone Labs now and again.

Sent from my SM-T350 using Tapatalk
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Old 06-28-2019, 03:53 AM
browningv308 browningv308 is offline
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Well I found and bought an 07 Grand Cherokee Overland with the 3.0 diesel. 140k miles everything on it works except the cd player, it swallowed my cds. The jeep got 24 mpg on the way back from NC when I was driving it home, great power, great riding and the Quadra Track 2 4x4 system should make it unstoppable.
Plan #1 is a complete fluid change and general tune up, then it's getting a 2.5'' lift and 265's then later a Green Diesel performance tune along with egr delete after that it should be good to go
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Old 07-02-2019, 08:42 AM
cheepsk8 cheepsk8 is offline
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Originally Posted by Central Scrutinizer View Post
You can probably extend the life of the synthetic by extra filtering and having its oil tested by Blackstone Labs now and again.

Sent from my SM-T350 using Tapatalk
I did add the Filtration Solutions FS2500 filter to it. I didnít have it long enough after that to test the oil. I had to create my own hose kit.
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Old 07-02-2019, 05:54 PM
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There was a recent thread on another site with some known problems listed.

The fuel filter tends to shed micro particulates that contaminate the injection system, necessitating a complete replacement of the injectors. So changing the filter more often than required seems to be not just a good idea, but the solution to the problem.

I think the schedule is 40K miles, and owners are saying that before 30K, the filter is in need of replacement.
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Old 08-04-2019, 08:12 PM
eleven11 eleven11 is offline
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It is abandon-ware. So if you want to buy it, make friends with an independent Mercedes mechanic. If you take it to a Fiatsler dealership they will destroy it. Get used to waiting for parts for it and plan ahead. I would avoid.
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