EGR and Intake soot and Biodiesel

[chacaocop]

Question:

Is it true that the carbon deposits inside the EGR and Intake manifold will come loose if Biodiesel is used and damage the engine?

Thanks.

[Seatman]

I don't see how, the fuel doesn't go through the intake, just air and oil vapour so how could the fuel do anything?

[chacaocop]

Thanks for your input. I filled the tank with B99. So far it is good, besides the french fries smell :-)

[Cstdi]

I would be more worried about chunks going through if you clean it- done that and didn't have a problem but i was very careful to remove everything that I broke loose.

[Calidris96]

I put about 60K miles on my 03 Jetta before I started using biodiesel, used B100 almost exclusively for about 75K then back to petro-diesel after moving away from my supplier. It wasn't until about 180K that I cracked open my EGR for the first time expecting a mess. A milimeter of carbon sludge, maybe two, is all that was in there. I credited the lack of build-up to the years of running biodiesel because it produces less soot. Maybe that's baseless, but I liked burning the stuff, and cleaning parts with it. My Jetta seemed to like it too. As did my pocket book. B100 at Houston Biodiesel is much cheaper than petro-diesel.

[margaretN]

Previously, talking biodiesel meant referring to a small fringe group. Biodiesel, however, is now large business, with the problems that many large businesses face.