Biodiesel effect on older diesels

Biodiesel effect on older diesels

06-28-2006, 08:05 PM

#1 (permalink)

Lube Man

Amsoil

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Join Date: Sep 1999 Location: Sonora, CA, USA Posts: 122

Biodiesel effect on older diesels

It appears the only real concern with B100 is that it not come in contact with rubber parts. As far as I can see, the fuel lines on the 1999 Dodges and probably all the newer ones are metal. However, back at the top of the fuel tank (which is rather difficult to get to) the supply line looks like a black plastic tubing. Does anyone know what this line is made of? Is it reaaly plastic or am I looking at a coated metal line.

I called Dodge home office and all they told me was that B5 was ok to use. They could not tell me what the fuel lines are made of. Local dealer said they do not recommend biodiesel because the injection pumps needs lubrication from the fuel! That's how much they understand biodiesel.

I guess the bottom line question is whether or not there are any fuel lines that need to be replaced to run B100.

Another related question is what % biodiesel can you run without worrying about rubber deterioration?

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