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DEF Shelf Life

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Old Jul 12, 2018 | 09:29 PM
  #1  
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lawnspecialties
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DEF Shelf Life

I bought several 2.5 gallon jugs of Motorcraft DEF awhile back. Not exactly sure but I can research it. Maybe six months? I drive my 450 around 10,000 miles per year so I don't go through DEF a whole lot. When I am driving it, its usually pulling anything from a 6000 lb. landscape trailer to a 10,000 lb. equipment trailer to an 18,000 lb. camper. But I find I'm not having to fill it too often; especially with a 7.5 gallon tank.

But now I'm hearing DEF has a shelf life that's not too great. How long would you wait until you decide to throw away a jug? I have two jugs left and my DEF tank is 3/4 full. Its not so much the money. Its the hassle of finding a place to dump DEF.
 
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Old Jul 12, 2018 | 09:56 PM
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On the farm we buy it in bulk. And it can sit a long time in a cool dry place. 2 years is not a problem.
No problems at all with machines worth 7x as much as a new truck.
 
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Old Jul 12, 2018 | 10:22 PM
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Here is a link to information from Ford on the subject.
https://www.google.ca/url?sa=t&rct=j...OfQ0bXCDh8LO6L
Gary
 
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Old Jul 13, 2018 | 06:14 AM
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Thanks to you both.My DEF jugs stay in the garage in a cabinet. Its dark and the average temp should get me well over a year of storage, according to that link posted by saskowner.

I do need to check their dates though. Appreciate it.
 
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