Audreylita, a woman after my own heart!
I too do things to my stuff I would never recommend others try!
RoseUSA, the most intensely colored scarf I've washed is Poste et Cavalerie, creamy background with design in gold, red, black and burgundy. And Astrologie in black, gold and white. No color bleeds on either of them.
Both were complete WRECKS when I bought them. One was from a garage/estate sale, and one was on ebay. BOTH had huge gross oily marks on them. The P&C had a streak about 5" long and 2" wide that looked like black oil. Like old motor oil.
The Astrologie had blotches of what looked like cooking oil, and loads of makeup smears. And it smelled beyond-bad.
THIS IS WHY I USE A CLEAR DISHSOAP: I rubbed the stains with the soap, saturating each spot, waited a couple of minutes to let the soap start breaking down the oily stains, then washed. (I fear if I use a colored soap the soap dye might transfer to the scarf.)
Please bear in mind I had very little financial involvement and no emotional investment in either of them when I tried this. Like Audreylita, this is what I did -- YOU have to decide what you are prepared to do on your own stuff.