Thanks for the ideas. Yes, love my kitchen sink, the white goes with everything else we've done in the kitchen, can't imagine what it would look like in there if it were not white...but it is a pain in the neck!!!!
I have tried bleach, magic eraser, non abrasive scouring products. They take out the everyday things like tea, coffee, red onion, tomato sauce, etc....as you people with white sinks well know, everything leaves a stain on them. I always just spray the sink when I am done with Chlorox clean up spray and just leave it and all of those things disappear......have given up so much elbow grease on these silver ones, mostly caused by bumping the walls with the pans no matter how careful you are. I will try the Bar Keepers Friend,and the Oxyclean....those I have not tried yet. Thanks again for the suggestions.