Today's tank-day again. Inside-rust-management to be more precisely. - What's pretty good not to see on the image is: the tank's filled completely with cleaner. After that a load of make-rust-to-no-rust-chemaical and finally Kreem-Rot to (hopefully) keep it that way and because it's such a good match to the colour on the outside :)
... und die Chrom-Allergie hat beim Tankdeckel wieder zugeschlagen.
... and the filler-cap suddenly is black.