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  #1  
Old 12-16-2013, 10:37 AM
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DEF Tank Capacity

Does anybody know exactly what the DEF tank capacity is? I've seen estimations on a few threads (seems like 8 gal?) but was wondering if anybody has the exact figure. Thanks
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Old 12-19-2013, 06:28 AM
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Re: DEF Tank Capacity

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Originally Posted by Jarek0423 View Post
Does anybody know exactly what the DEF tank capacity is? I've seen estimations on a few threads (seems like 8 gal?) but was wondering if anybody has the exact figure. Thanks
Diesel Power Magazine says it's 8 gallons: "Conveniently, the diesel exhaust fluid (DEF) tank holds 8 gallons of fluid and is accessed through the fuel door, not the interior, as in some of the European competition. Also, the expected 10,000-mile range of the urea tank was designed to coincide with the 10,000-mile service interval of the engine, making the transition of adding another maintenance fluid easier on the consumer"
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Old 12-21-2013, 01:20 PM
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I had to add 7.5 gallons ($45) when the odometer hit 2600 miles. Since I'm traveling on vacation, I was unable to bring the vehicle to the dealer for diagnostics—Jeep customer service said the DEF fill up intervals should be around 10K miles. Any one else having this problem?
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Old 12-22-2013, 12:50 PM
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Re: DEF Tank Capacity

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Originally Posted by caliche27 View Post
I had to add 7.5 gallons ($45) when the odometer hit 2600 miles. Since I'm traveling on vacation, I was unable to bring the vehicle to the dealer for diagnostics—Jeep customer service said the DEF fill up intervals should be around 10K miles. Any one else having this problem?
Wonder how much you had to begin with. My guess would probably not full or you have a leak.
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Old 12-22-2013, 01:19 PM
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Re: DEF Tank Capacity

from FSM:





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Originally Posted by caliche27 View Post
I had to add 7.5 gallons ($45) when the odometer hit 2600 miles. Since I'm traveling on vacation, I was unable to bring the vehicle to the dealer for diagnostics—Jeep customer service said the DEF fill up intervals should be around 10K miles. Any one else having this problem?
may not have been filled at PDI or, as was suggested, you may have a leak.
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Old 12-22-2013, 02:08 PM
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Thanks for the information. I've Added DEF by Peak—I believe, Peak meets the standard mentioned above. The fluid specs are on the link below. I'm keeping my eyes peeled for leaks.

http://images.peakauto.com/bluedef_data_specs_.pdf
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Old 12-22-2013, 06:56 PM
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Re: DEF Tank Capacity

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Originally Posted by caliche27 View Post
I had to add 7.5 gallons ($45) when the odometer hit 2600 miles. Since I'm traveling on vacation, I was unable to bring the vehicle to the dealer for diagnostics—Jeep customer service said the DEF fill up intervals should be around 10K miles. Any one else having this problem?
You can get DEF at most truck stops from a pump for about $3 a gallon.
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Old 12-22-2013, 07:31 PM
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I was unaware of this service at truck stops. Thanks for the tip. Cheers.
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Old 12-23-2013, 06:42 AM
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Re: DEF Tank Capacity

If yours was anything like mine, then you started with less than half a tank. I didn't notice mine until a couple days after buying it. I fully intend to call the dealer and request they top off the tank after I get back from holiday travel. Good to know some truck stops sell it.
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Old 12-29-2013, 03:50 PM
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Re: DEF Tank Capacity

In our Australian models, we don't have access to this DEF tank at all.....apparently we are too stupid to be able to look after our own cars here so the kindly stealers will top it off for us when we get a service!
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Old 12-29-2013, 07:58 PM
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Re: DEF Tank Capacity

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Originally Posted by archcat74 View Post
In our Australian models, we don't have access to this DEF tank at all.....apparently we are too stupid to be able to look after our own cars here so the kindly stealers will top it off for us when we get a service!
You might want to research that more extensively. AFAIK, Australia's emissions code does not require a Selective Catalytic Reduction system as the EU and US code do, and so there is no DEF tank there.
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Old 12-30-2013, 07:44 AM
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Re: DEF Tank Capacity

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Originally Posted by netboy View Post
You might want to research that more extensively. AFAIK, Australia's emissions code does not require a Selective Catalytic Reduction system as the EU and US code do, and so there is no DEF tank there.
True statement.

Currently the US model is the only one with the DEF.

New EU specs and such are going to make it a necessity in the future for all regions to have the DEF / SCR / etc..
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