When I did my CCV mod I used 3/4" heater hose, but I knew I should use a fuel rated hose. Yesterday I was under the truck and the hose felt soft, I think the oil is starting to degrade it. What kind of hose are you guys using and where do you get it?


I looked at the BD diesel CCV Filter setup but wow $375.....can't do it.

 

I used a fuel rated hose for the drain line and a heater hose for the return line. Might give Riffraff a call: Riffraff Diesel CCV Crankcase Vent Kit - Riffraff Diesel Performance I used this as a start and then made my own catch can and added a return line as we can't vent to the open in CA.