Chevy Duramax DEF issues
I have been following a thread recently on duramaxforum.com which is following people that have had DEF problems with their 2011 and newer chevy duramax trucks. I happen to be one of them. My truck ...
Forum Discussion
My truck has less than 1400 miles on it, so haven't added DEF yet. But there has also been a lot of discussion about the shelf life of DEF. Based on the last 10 yrs of driving, I average about 8k miles per year and a full DEF tank might last me 7 months. Seems to me, why worry about the shelf life of an unopened jug and then let the fluid sit in the DEF tank for 6 months? So, I don't plan on filling it unless I'm headed out on a long trip. Otherwise, I will just add a gal. whenever the warning message appears. Time will tell.
