Biodiesel? I'm using HPR now, which is similar of course.

Another thing I forget to mention, I'm thinking I shouldn't run it down so close to empty. My E30s have an intank pump that need, or want anyway at least a quarter of a tank to be happy. Don't know if that's an issue here. No intank pump anyway.

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1986 300SDL, 362K
1984 300D, 138K