DEF when towing
What is your usage of DEF when towing. I have a 2020 GMC 3500 sierra 6.6 Duramax diesel. I have 17000 miles on it now. Most of the miles are regular driving hardly use any DEF. Had my truck servic...
Forum Discussion
Lantley said: "If lack of DEF gauge is the biggest negative of my truck than I'm doing OK!"
I agree! Really can't be that big of a deal to simply add to it based on the type of driving you have been doing. Always have some fresh water to rinse away any spilled DEF. If using a funnel or reusing the fill tube provided be sure to rinse thoroughly.
I agree! Really can't be that big of a deal to simply add to it based on the type of driving you have been doing. Always have some fresh water to rinse away any spilled DEF. If using a funnel or reusing the fill tube provided be sure to rinse thoroughly.
