The biggest issue with many hoses on a truck is their chafing or rubbing together if a DOT inspector see them he may write you a fixit ticket or he could put you out of service right there on the spot.
After many miles of flexing hoses have a tendency to begin to sag or for what ever reason may lay against another and start to rub or chafe
A simple accepted solution to this it so simply zip tie them together but I like to add a little better protection by encasing them in the plastic wire loom like shown in the picture. By doing this it adds another level of protection while also helping to stabilize the hoses at the same time
the small nylon line was sagging onto the larger hose but now it is not only captured and held in place it cannot get close to the drive line if it were to become heavily laden with accumulated ice
. the line is a good 8 inches from the drive line although the picture does not show it