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Old 10-12-2013, 04:43 AM   #12
BB_TX
Montana Master
 
Join Date: Oct 2006
Location: McKinney
Posts: 7,166
M.O.C. #6433
I just check my display every once in a while and if it shows DEF less than half I will stop and buy 2 1/2 gallon jug and pour it in. If we have a long trip planned I will buy enough to make sure it is full and carry any extra left over in the truck.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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