UD 2000 Nissan--fuel lines

[rickhope82]

I recently purchased a "New" 1999 Nissan UD 2000 cabforward truck. It is still under full warranty and I can not make any changes that could put the warranty at risk. I plan on converting this to run on biodiesel once I leave Alaska. I am converting the truck to an modular RV.

I currently have the flatbed off the chasis and I have access to the rubber fuel lines between the two tanks and Engine. I have been told by the US nissan rep that the rubber in the fuel delivery system will not hold up to Biodiesel use. I am planning on changing the rubber based fuel hose to Viton hose before I put the flatbed on and adding an inline pump to help prime the system when needed.

Is there anything cheaper out there besides Viton hose? $13+/foot. I have been told it is not the biodiesel itself but the methanol left over from the conversion process (not washed enough) that is the enemy of the rubber--is that true?

[Ford_Forgotton]

No, Bio-D in its pure, clean form is a solvent and will eat natural rubber.

*MOST* vehicles built since 1996 have Viton hoses already. You may want to check with the Nissan Rep again to make sure he isnt just giving you the brush off.

[rickhope82]

I believe that all trucks made in Europe since 1996 are biodiesel compatible but not Japan. Diesel fuel in Europe routinely has biodiesel added.

When the dealership added the extra tank to my truck they used Goodyear Insta Grip. Goodyear does not recommend Insta Grip for any "automotive fuel line". That is just diesel without any additives. I have a call into the dealership.