I am finishing the Cummins install on my '79 F250. I am down to installing the fuel tank and lines. Is the "fuel hose" you buy at NAPA good for use with diesel, and more important, bio-diesel? I asked for hose for diesel use and they gave me that blank look that didn't leave me with a real warm fuzzy feeling.

 

Yes, your new fuel lines and hoses are compatable with bio and reg diesel. Also you want to know what year your cummins is and make sure all the o-rings and seals that come in contact bio are newer product.