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  #1  
Old 12-29-2014, 07:38 PM
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Newbie: 2014 GC Limited 3.0 Ecodiesel

Hey folks great site. A few questions for the board as I've not been around personal use diesels for 25 years or so.

I'm going to be running 3-4000 miles a month so oil changes, DEF, etc will pile up quickly. Questions:

**what DEF should I use? I've seen a couple posts discussing filling protocol: fill only halfway, avoid pay pumps, etc. of course the dealer said I should only have the dealer fill.

**coolant monitoring: any tips on watching coolant ? What should I look for in the first 10-15000 miles?

Any other major issues I should be aware of or looking out for the first few months?

Love the vehicle. First 500 miles I'm around 33 mpg...heavy highway obviously.

Thanks in advance.

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  #2  
Old 01-03-2015, 12:03 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

Welcome, Bwanz. I have the same vehicle

In my opinion, those two questions have a lot to do with your climate. Very hot all the time (southwest) vs arctic (Canada). Where is this vehicle?
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Old 01-03-2015, 02:43 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

DEF - for as cheap as it is nothing wrong with having dealer add 2.5 gallons as needed during oil changes. You don't want to fill full as it can freeze, expand and crank the tank. It also can go bad but probably not an issue with the number of miles you drive.

There isn't anything to look out for, just need oil changes. My porsche mechanic recommends every 5k although jeep says 10k.
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Old 01-03-2015, 03:24 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

Thanks for responses.

I'm in North Florida. Probably less than 10 days a year with sub freezing temps. Probably 30-45 days a year in the mid 90's or higher.
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Old 01-03-2015, 05:16 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

Given your mileage, I would shop for 2.5 gallon containers of "fresher" DEF and just bung one in every month. The 8 gallon DEF tank is, according to the book, good for every 10K oil change. Just make sure you have a min of a quarter tank of DEF.
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Old 01-03-2015, 06:15 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

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Originally Posted by philbytx View Post
Given your mileage, I would shop for 2.5 gallon containers of "fresher" DEF and just bung one in every month. The 8 gallon DEF tank is, according to the book, good for every 10K oil change. Just make sure you have a min of a quarter tank of DEF.
I'm curious as to why you recommend a minimum of a 1/4 tank. I wait for the 500 mile warning and than I add 2.5 gallons .
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Old 01-03-2015, 07:10 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

25,000 miles I've filled the DEF twice at a truck stop pump and put in a 2.5 gallon jug once, no problem with pay at the pump DEF, I did have to put a magnet adapter on the filler once.

Coolant, maintenance free, similar to dexcool.


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Old 01-03-2015, 08:44 PM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

Nice! Like fuel, make sure you are buying DEF from truck stops, or other places you see vehicles filling up regularly. If you buy the bottled kind, watch the expiration date printed on the side. DEF does not store well at high temperatures. Here's an example of a bulletin with specific guidelines https://www.fcsdchemicalsandlubricants.com/main/additionalinfo/DEF%20Shelf%20Life%20and%20Fluid%20Quality.pdf Low temps do not affect the system unless you've overfilled. I haven't needed to buy DEF yet (only 1722 miles on mine)

My coolant resovior has acutally dropped below Min slightly. I imagine that's becuase it's pretty cold, or it wasn't topped off completely. It isn't low enough for me to mess with it. Coolant temperature is important to watch on any vehicle especially if towing. Many of the other components depend on engine coolant (ex: oil cools turbo, oil cooled by coolant) But you've got a two-speed electric fan, lights, chimes, and your gauge working for you

Most of this is general advice for any engine Watch your gauges, listen for funny sounds, and change your oil regularly (I agree with gieseja... there's no way I'm leaving the same oil in there for 10k mi) avoid crap fuel, do the maintenance listed in the supplement.

Other specifics about this vehicle:
-Some people have damaged their DEF injector when driving through deep water. I bought Dom's protection plate just to be safe. There are plenty of stories on this forum
-Check your air filter. I'm not the first to find the plastic seal already falling apart
-Test your electronics thoroughly. Some people have had issues with radio/navigation. Some of these are easily fixed under warranty, including software updates to the transmission and other components
-Some people (escpecially ram truck owners with the same engine) are not happy with the volume of oil making it past the PCV system and into the turbo intake. Several of us are investigating.
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Old 01-04-2015, 02:19 AM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

I live in Minnesota, and have had temps down to -26 with no DEF problems. There is heater built into the DEF lines. As far as warm temps and DEF crystalizing, you have to be in Very hot climates. The literature says it will crystalize in as little as 2-3 months in 100 degree temps, but this would be constant 100 degree temps. You have to figure out what the night time temps are, and average this out. If you live in the southern states, I might consider only filling 4-6 gallons at a time, and you should be fine.
As far as oil changes, the 10000 miles should be ok unless you are running biodiesel blends. The higher the blend, the more often you will need oil changes. I have heard of a few people who have found diesel fuel in the oil in the Blackstone oil analysis, but this occurs more often with the higher biodiesel blends. If you are 5% or less, the 10000 miles should be fine. If you are 10%, I would probably drop that to 5000 miles. In Minnesota, they are trying to increase to 20% by 2018. No diesel manufacturer recommends this high of a blend, so many of us have written our legislators trying to get them to repeal this requirement. Keeping my fingers crossed.
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Old 01-04-2015, 07:14 AM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

It's good to hear that you aren't having any trouble with the Diesel/DEF in low temperatures. I just moved back up here from AZ and have had my CRD on order. I've been driving my Dodge CTD and now that we've gotten into the cooler (ha!) temperatures, I'm having to get used to the additional cold weather care that Diesels require. I've driven Diesels for over 10 years now, but have lived in AZ that whole time.



Quote:
Originally Posted by Shannon View Post
I live in Minnesota, and have had temps down to -26 with no DEF problems. There is heater built into the DEF lines. As far as warm temps and DEF crystalizing, you have to be in Very hot climates. The literature says it will crystalize in as little as 2-3 months in 100 degree temps, but this would be constant 100 degree temps. You have to figure out what the night time temps are, and average this out. If you live in the southern states, I might consider only filling 4-6 gallons at a time, and you should be fine.
As far as oil changes, the 10000 miles should be ok unless you are running biodiesel blends. The higher the blend, the more often you will need oil changes. I have heard of a few people who have found diesel fuel in the oil in the Blackstone oil analysis, but this occurs more often with the higher biodiesel blends. If you are 5% or less, the 10000 miles should be fine. If you are 10%, I would probably drop that to 5000 miles. In Minnesota, they are trying to increase to 20% by 2018. No diesel manufacturer recommends this high of a blend, so many of us have written our legislators trying to get them to repeal this requirement. Keeping my fingers crossed.
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Old 01-04-2015, 10:53 AM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

I keep my capacities at a min 1/4 tank so I don't get any electronic "brains" involved....EVIC warnings etc.

Same with fuel tanks....but that's just me.... !
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Old 01-05-2015, 02:36 AM
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Re: Newbie: 2014 GC Limited 3.0 Ecodiesel

Quote:
Originally Posted by philbytx View Post
I keep my capacities at a min 1/4 tank so I don't get any electronic "brains" involved....EVIC warnings etc.

Same with fuel tanks....but that's just me.... !
Thats a good policy to have. It would really suck if you try to get somewhere in a hurry only to have the thing suddenly setting off codes/warnings, or worse yet, go into limp mode.
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