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  #1  
Old 11-12-2014, 08:00 PM
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2014 ecodiesel heat fuel?

Does my 2014 Jeep Grand Cherokee Limited heat the diesel fuel & lines, or just heat at the fuel filter? Reason I ask is because I'm trying to run out my #2 diesel and the temp. here is dipping below +20 degrees F. SUV sits in a heated garage overnight(@+55) and my only concern is on the highway or when engine is off at work. Thanks.

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Old 11-13-2014, 05:46 AM
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Re: 2014 ecodiesel heat fuel?

If you're concerned, you can always drop in some Power Service Diesel Fuel Supplement cetane boost/anti-gelling product (the white bottle, not the silver). My WalMart has it for about $6 for 16 oz, which should treat two full tanks. Then you don't have to be worried about trying to rapidly burn off your tank of fuel.

I have been considering carrying some Diesel 911, but I think that it's a long shot to be a concern in my area because the service stations all switch to winter blend with sufficient #1 to avoid gelling. (Overpreparedness? What can I say? The Boy Scout motto dies hard.)

FWIW—and someone please correct if I'm wrong—but I thought the fuel pump system circulated the tank contents up to the engine for heating so that gelling is extremely unlikely while the vehicle is at operating temperature and underway. But, like I said, maybe I hallucinated that.
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Old 11-13-2014, 07:22 AM
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Re: 2014 ecodiesel heat fuel?

I didn't have any issues last winter with mine sitting out in an open (unheated) parking lot all night, and unheated parking garage during the day at work. We were below 20 for a good amount of time.
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Old 11-13-2014, 08:37 PM
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Re: 2014 ecodiesel heat fuel?

Yes, the fuel recirculates from the motor. I doubt it would gel while running. Parked...yep. An anti-gel fuel supplement is a great idea.
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Old 11-13-2014, 09:07 PM
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Re: 2014 ecodiesel heat fuel?

Howdy. Very little heat is rejected to the fuel on a common rail system like the one our 3.0 engines have. This is actually a good thing, as warm fuel in the tank promotes condensation which leads to water in the fuel. It also eliminates the need for a fuel cooler.

With temps in the upper teens or lower 20s, and keeping inside a warm garage at night, you will not have any issues.
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Old 11-16-2014, 07:57 AM
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Re: 2014 ecodiesel heat fuel?

Thanks
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Old 11-19-2014, 04:20 PM
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Re: 2014 ecodiesel heat fuel?

The diesel supplement to the owners manual says #2 diesel is OK down to -10F, so +20 is no problem.

"No. 1 Ultra Low Sulfur diesel fuel should only be used where extended arctic conditions (-10F or -23C) exist."
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Old 11-19-2014, 05:49 PM
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Re: 2014 ecodiesel heat fuel?

Run #2 diesel here in Minnesota in the winter. -26 F last winter and did not gel.
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Old 11-19-2014, 06:30 PM
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Re: 2014 ecodiesel heat fuel?

what did you use for an anti-gel? -26F no way that would not gel unless you left the Jeep run day and night.
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Old 11-19-2014, 10:01 PM
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Re: 2014 ecodiesel heat fuel?

Quote:
Originally Posted by chadg2 View Post
what did you use for an anti-gel? -26F no way that would not gel unless you left the Jeep run day and night.
No additives. Sat outside for 10 hours, and when I went to start it, it was -26. The remote start won't work when it is that cold, because the remote start disables itself if it doesn't start on the first crank. But it started manually fine. Lots of creaks and moans, but started and ran fine.
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Old 11-19-2014, 10:53 PM
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Re: 2014 ecodiesel heat fuel?

Quote:
Originally Posted by Shannon View Post
No additives. Sat outside for 10 hours, and when I went to start it, it was -26. The remote start won't work when it is that cold, because the remote start disables itself if it doesn't start on the first crank. But it started manually fine. Lots of creaks and moans, but started and ran fine.
Perhaps the dieael had an anti-gel premixed in it from the provider?
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Old 11-19-2014, 11:04 PM
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Re: 2014 ecodiesel heat fuel?

Quote:
Originally Posted by ExcursionDiesel View Post
Perhaps the dieael had an anti-gel premixed in it from the provider?
I know in Minnesota that the gas stations change to the #2 winter blend from October thru April.
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