A caveat after switching to Diesel HPR.

I noticed slow seepage from the hose that runs from the lift pump to the spin-on filter in my 1985 300D. I installed smaller "fuel injection" type hose clamps, but the hose rotates fairly easy at both ends. I don't recall wetness previously. The original nylon tube cracked a few years ago (always w/ diesel). I replaced it with rubber fuel hose (1/4" fuel injection type I recall), which may not be compatible w/ bio fuels. The leaking fuel seems to smell like old grease, but just has a faint smell. I also must watch for drips onto the motor mount since that rubber doesn't appreciate bio fuel. The engine runs so smooth on Diesel HPR, and it is cheaper, so I would rather fix the hose issue than give up on it.

I'll try to find better hose. A search suggested Viton is best but costly. Clear nylon (even from Home Depot or Ace?) may work fine. Polyurethane is another choice. Some say Goodyear fuel injection hose w/ a blue liner works, but others not. Mosts posts found were about 2008. Does anyone know if a consensus has formed since? Best function to cost ratio?