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Old 10-13-2015, 07:29 PM   #1
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Filling Sprinter DEF tank in freezing weather

Winterizing and getting ready for the trip to warmer climates in January. Topped off the DEF tank and then wondering if this decision may expand and crack the tank. Couldn't find anything in the manual. Siphon some out or not??
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Old 10-13-2015, 07:39 PM   #2
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I believe def is fine to 12F.


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Old 10-13-2015, 07:43 PM   #3
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Here some good info on DEF.....

https://www.cumminsfiltration.ca/pdf...es/MB10033.pdf
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Old 10-13-2015, 08:01 PM   #4
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In northern Minnesota we can get -30F in January
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Old 10-13-2015, 08:05 PM   #5
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In the Cummins info above it says tanks are designed to expand. Can't find any info specifically about the Sprinter but they all must have to meet a standard.
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Old 10-13-2015, 09:02 PM   #6
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Fonzie, Thanks for the info on DEF
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Old 10-13-2015, 09:26 PM   #7
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Think of all of the tractor trailers running all winter. Should be fine.
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Old 10-14-2015, 09:30 AM   #8
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Quote:
Originally Posted by SSmbs View Post
In northern Minnesota we can get -30F in January
What do you do with the brass monkey!
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Old 10-14-2015, 06:16 PM   #9
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That's why we head south in January. We alternate between the Arizona to Texas and Florida to Texas route. Usually 1-3 days in a spot and one time 4 weeks in Texas. Like to keep moving. Have always taken a 5th wheel in the past. We think the MBS will be good for our mobile lifestyle.
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Old 10-14-2015, 08:00 PM   #10
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The DEF will freeze, the tank expand, and when the engine is cranked the tank heater will thaw it all out prior to the Bluetec system using any of it in the emissions system. Sensors, computer programming, etc!

Definitely "not my daddy's diesel". Doesn't smoke like his did either!
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