Dears,
I bought my 2017 Chevy Colorado Duramax Z71 brand new and I just love it. I was super satisfied with the performance and features of the truck. Due to the nature of my job, I had to move outside the U.S for a long mission to Africa, so I took my truck with me. Here started my nightmare. Just few days of use, I got the famous warning message regarding the quality of gas (DEF). I changed several brands of DEF but no success! I read somewhere that the shelf life of the product is key for the quality of the fluid. Now my truck is kind of locked, I am allowed to drive 6 Miles/h, it means it is not working. The worse thing is that there is no GM, Chevrolet store to assist. I was thinking to delete the whole DEF system if possible since the location where I am based now is not regulated yet by the gas emissions. I will be very grateful if you could assist as I am suffering without my car. Thanks for your help.

 

Diesel exhaust fluid (DEF) is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. I'd have thought it would be the same all over, but I suppose its not. Can you order it online?

 

Indeed I ordered online. I was told lot of dust might affect the sensors. Anyways now I need to unblock my truck. Thanks for your thoughts.

 

Mine is a 2016 Diesel without the Urea system, manufactured in Mexico. Probably have to get a 3rd world computer without programming for all that crap.