the advice you got for your gasser mazda is not good advice for a diesel.

Diesel hardly ever goes bad. If it is contaminated with bacteria a treatment with biocide will kill it and render the dead carcasses harmless.

Even if you do drain out water and bacteria contaminated fuel you will still need to treat the tank with biocide to kill the residue that will not drain out easily.

You are not being helpful in stubbornly continue to recommend this useless action.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.