Doc's Diesel DEF System Kit

So far so good

Great stuff. My only mistake was that I dumped the whole bottle in.

Def System Kit

I love that Doc's now offers DEF so I dont have to worry about stopping somewhere that carries it. I also am excited to start using the Def Guard in all my trucks and try to help keep the Def system from its many problems.

Def guard

I used the Def guard had crystal build up in the intake notice it clean off I be using it from now on