water marks on expansion tank

[simbad]

Any help on how to remove coolant stains on the expansion tank. stupidly overfilled slightly last year and now ali tanks are not pretty.

[Daftlad]

simbad said:

Any help on how to remove coolant stains on the expansion tank. stupidly overfilled slightly last year and now ali tanks are not pretty.

Solvol-autosol or Brasso. Brasso will probably be the easiest.

[simbad]

Thanks for help will try out over the weekend.