I have a friend that would like to play my save file. By that i mean on my account. But I'm NTSC here in US and he's PAL. Would he still be able to do it?
You can't do that. Unless he buys an NTSC GT5 disc, since american saves are not compatible with european discs and viceversa. Though his PS3 will be able to play any region disc, including american GT5.