Maybe I'm ignorant but I'm sticking by the MB hoses being durable with the biodiesel. Would you agree the seals in the IP or injection system as a whole can put up with it? Why would they do this and make the lines not able to withstand it?

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Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k