I mentioned this in another thread but it's more or less dead.

My car sat for about two years before being sold. Family was aged and dysfunctional from what I can gather. Major rust in my primary filter. Hard gritty bits, not likely to be merely bio growth. Not driving it until I deal with it.

Tank metal can't be all that thick. At what point is it better to just replace it?

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Te futueo et caballum tuum

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