2015 duramax DEF range
Question about my 2015 GMC 2500 duramax, I had herd and read on-line that the DEF on newer duramax trucks got about 3500miles per tank, I am at 3800miles on my first tank and still have not got a low ...
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Empty I get about 5000 miles before needing to add DEF. Towing, it will use more.
Rich
Rich
