I have a 1983 Series 3 diesel - 2.25L. Recently the injection pump started leaking. Now I am faced with replacing the pump. A couple of weeks before the leak started I had put some biodiesel fuel in it - stopped at a station and that is all they had - I needed fuel. It may be a coincidence but could the biodiesel have deteriorated the seals in the pump? Since these pumps are also used on lots of tractor brands and farmers may put almost anything in them I would think that the pumps would be using seals that would resist damage from just about anything. While 1983 is a few years back it was not the dark ages when real rubber was used. Anyone have experience using biodiesel in their Series LRs? Advice / comments welcomed.

Jim