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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: dankcorey22 on November 09, 2010, 10:11:14 pm
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Okay my friend makes bio fuel and he gave me 5 gallons (B100) i added it to about 6 gallons of D2
The result: after 1 week (i have not added anything to my tank yet) i notice a big leak from my lines. it was my return line. i put new rubber lines on there and when i was changing my fuel filter i noticed all the rubber on my lines was getting softer...
my cars is a 99.5 i guess that is when VW still made the lines natural rubber. is that why the biodiesel is getting ate up?
Any input is appreciated
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The fuel lines should be replaced with Viton fuel hoses.
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I've been running B-100 in my caddy for about 5 years. I use the transparent blue polyurethane fuel line that you can buy at most motorcycle shops. It has a temp rating of -65 f to 220 f. Another good line I use on my old ford IDI and my old cummins is nylon air brake line, mostly just for supply and return. For the injector jumpers on the ford and caddy I use the transparent blue polyurethane so I can keep an eye on any air bubbles.
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If the bio has eaten my fuel lines on the inside will it hurt the pump? since the bi-product of the bio eating the line.