I have off white interior that show any kind of stain easily, from black shoe sole marks to spider sh_t. I have been cussing myself since I bought this thing because of the color of seats. Magic erasor is a great tool to have, they are pretty much disposable because they wear out or tear up pretty fast. I have used them with many cleaners and this stuff I found the other day is the best ever! Its called "Blast", I thought I bought it at Home Depot but after going there today I did not see it so I'll have to back track my steps and figure out where I got it, anyway the stuff works great!!
Some of that stuff you have to be carefull with, just like with bleach, it will make it mildew faster after you use it. I've stuck with the aerospace 303. The seats get wiped down once a week with this stuff and most marks will wipe off. I've also used viynl polish, I think its made by Starbrite and it works good too.
Yup! 303 is fantastic stuff. If applied religiously it will lift marks/stains.
Be real careful using strong cleaners. If you insist make sure to thoroughly rinse the seats/vinyl down afterward. If not that 'cleaner' will eat up the stitching. Trust me.