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  #1249  
Old 04-27-2014, 08:54 AM
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Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by netboy View Post
Vtail,



Did you take her for TSB 18-018-14 REV.B? A bunch of us are suffering from a fast oil-life indicator change. I did my change @3500 miles, and 100 miles after the indicator was already at 85%. I'll be taking her for some serious TSB love in the next week or two.

Wasn't aware of the TSB. Will make an appointment ASAP. This is why this forum is so invaluable. THX! Next time I'll look at wk2jeeps.com as well.

This brings up an interesting question. What is the harm in going past 0% oil life? If it is just a computer calculation, it may or may not represent the actual condition of the oil. Why can the VW diesels simply go 10,000 miles and the Jeeps can't? Are the diesel engines that different?


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  #1250  
Old 04-27-2014, 09:57 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by Vtail View Post

This brings up an interesting question. What is the harm in going past 0% oil life? If it is just a computer calculation, it may or may not represent the actual condition of the oil.

In another thread several people discovered that the oil life % affects the DPF regen cycles and if you hit 0% it won't regen. So if you ignore it you'll end up in limp mode.




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  #1251  
Old 04-27-2014, 10:00 AM
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Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by nautiboy View Post
In another thread several people discovered that the oil life % affects the DPF regen cycles and if you hit 0% it won't regen. So if you ignore it you'll end up in limp mode.

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So they are forcing you into these expensive oil changes whether or not the oil may really need changing. Sounds like a scam to make you spend more money at the dealer. Now I'm even less happy than before. This is the only thing I don't like about this vehicle. I was thinking that an expensive oil change every 10,000 miles would be no big deal. If I have to do to it twice or three times as often, it makes the operational expense even higher. Grumble grumble grumble....

Thought ..... why not just reset the oil life and keep driving it? Wouldn't that work to keep the regen cycles going? I wouldn't go past 10,000 miles, probably would change way before that. But I'm going to try the software update and see if that helps resolve the issue.


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  #1252  
Old 04-27-2014, 07:19 PM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

Quote:
Originally Posted by Vtail View Post
So they are forcing you into these expensive oil changes whether or not the oil may really need changing. Sounds like a scam to make you spend more money at the dealer. Now I'm even less happy than before. This is the only thing I don't like about this vehicle. I was thinking that an expensive oil change every 10,000 miles would be no big deal. If I have to do to it twice or three times as often, it makes the operational expense even higher. Grumble grumble grumble....

Thought ..... why not just reset the oil life and keep driving it? Wouldn't that work to keep the regen cycles going? I wouldn't go past 10,000 miles, probably would change way before that. But I'm going to try the software update and see if that helps resolve the issue.


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I was thinking the same thing... Very glad to see a TSB though... First oil change was at 2800 miles and now have another 460 miles and indicator shows 82%!!!!
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  #1253  
Old 04-30-2014, 10:54 PM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

Just had my oil changed at about 9800. And they updated the software. Haven't had any issues so far. Also, I get 4 free oil changes from the dealer I bought from. Not sure what they charge when I have to pay for it.

DEF needed a refill awhile ago, but I found it cheaper nearby than going through the dealer and I just add it myself.


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  #1254  
Old 05-01-2014, 04:30 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

I also went somewhere else for DEF. Although my oil change was free, the dealer wanted $25 per 2.5 gallons of DEF. I bought 2.5 gallons of Peak BlueDEF at the local auto parts store for $17 and added it myself.
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  #1255  
Old 05-01-2014, 05:25 AM
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Question Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by beechjetdriver View Post
I also went somewhere else for DEF. Although my oil change was free, the dealer wanted $25 per 2.5 gallons of DEF. I bought 2.5 gallons of Peak BlueDEF at the local auto parts store for $17 and added it myself.
Forgive my ignorance but what is DEF?
thanks
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  #1256  
Old 05-01-2014, 07:18 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Forgive my ignorance but what is DEF?
thanks
Diesel Exhaust Fluid, it's a Urea mixture.
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  #1257  
Old 05-01-2014, 07:19 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by pcrraa View Post
Forgive my ignorance but what is DEF?
thanks
Diesel Exhaust Fluid... Urea is a big component... it is intended to reduce the quantity of particulates in diesel exhaust.


Diesel exhaust fluid - Wikipedia, the free encyclopedia
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  #1258  
Old 05-01-2014, 07:41 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by Chivvalry View Post
Diesel Emissions Fluid... Urea is a big component... it is intended to reduce the quantity of particulates in diesel exhaust.


Diesel exhaust fluid - Wikipedia, the free encyclopedia
DEF does not reduce particulates. This is what the DPF is doing. DEF is used, together with the SCR catalyst to set off a chemical reaction that converts the poisonous nitrogen oxides (NOx) in the diesel exhaust stream into nitrogen, water and CO2 which are all naturally occurring in air.
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  #1259  
Old 05-01-2014, 08:00 AM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by netboy View Post
DEF does not reduce particulates. This is what the DPF is doing. DEF is used, together with the SCR catalyst to set off a chemical reaction that converts the poisonous nitrogen oxides (NOx) in the diesel exhaust stream into nitrogen, water and CO2 which are all naturally occurring in air.
Apologies, you're correct.
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  #1260  
Old 05-01-2014, 05:49 PM
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Re: Welcome ALL 2014+ Jeep Grand Cherokee Ecodiesel owners!

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Originally Posted by netboy View Post
DEF does not reduce particulates. This is what the DPF is doing. DEF is used, together with the SCR catalyst to set off a chemical reaction that converts the poisonous nitrogen oxides (NOx) in the diesel exhaust stream into nitrogen, water and CO2 which are all naturally occurring in air.
thanks, we don't use it in Australia so I had never heard of it.
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