"I work for an oil company and we are thinking of producing biodiesel to blend into petrodiesel. I am worried by the issue of rubber damage but I cannot see anywhere whether this is only an issue with BD100 or if is happens at low blend concentrations. Would you or your readers know anything about this?"From what I've heard/read, this is only a problem with natural-rubber fittings, and doesn't affect synthetic fittings. Definitely correct me if I'm wrong, though!
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