DEF Consumption

D

Diesel Denny

New member
Jul 30, 2020
10
5
I have 4000 miles on my AT4. I have towed my toyhauler 1300 miles. I have added 7.5gal of DEF. It really uses the DEF while towing.
 
It seems to be the biggest complaint here so far.. how is it doing not towing?
 
Yes for sure i tow a 24ft Atc enclosed trailer with a race car and extras about 8.5lbs I fill the DEF when I leave and about 600 miles I have to pull over and refill.I am comming out of a 2014 eco diesel which I still have it didn’t use as much Def Denali is a Great truck biggest complaint is the amount of Def and the ride needed to upgrade suspension which I had to put airbags in my Denali to tow my trailer. Other than that truck has instant torque and is always in the rite Gear in tow mode with the 10speed trans.
 
Diesel Denny said:
I have 4000 miles on my AT4. I have towed my toyhauler 1300 miles. I have added 7.5gal of DEF. It really uses the DEF while towing.
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It sucks Def like Water other than that you have a great truck I thought that maybe it’s the break-in period but I think I’m wrong. How much is your toy hauler ?
 
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