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
Well, I own a different truck, but bad DEF can be an issue. The issue is that DEF has a very specific gravity and another property that can be measured in the DEF tanks. DEF is composed of distilled water and roughly 27 to 33% aqueous ammonia. If this isn't met, it can throw off the DEF sensors causing an issue. I bought some DEF in a jug and keep re-filling them at a truck stop since it's so much cheaper there and I figure that they will have fresh DEF.
Just another thought that DEF could also have degraded. Depending on your environment, DEF has a shelf life anywhere from 6 months (if it's really hot where you live) to 2 years (if you top out at around 70 degrees on average where you live and don't have any prolonged weather spikes above 90 degrees).
Just another thought that DEF could also have degraded. Depending on your environment, DEF has a shelf life anywhere from 6 months (if it's really hot where you live) to 2 years (if you top out at around 70 degrees on average where you live and don't have any prolonged weather spikes above 90 degrees).
