Thread: DEF in truck when sitting long time
View Single Post
Old 04-02-2023, 07:46 AM   #3
Cat320
Montana Master
 
Join Date: May 2006
Location:
Posts: 1,700
M.O.C. #5751
As I noted on a different thread, DEF is good for one to three years depending on the temperature at which it is stored. High storage temps shorten it's life.
Cat320 is offline   Reply With Quote