I can't seem to find the right answer for this one by searching. I've seen pictures and posts of some that are orange, and some that are black. Most seem to say the dipstick itself is natural for the '68...

I've got a color info sheet for the '67 and it says the tube is natural. But I don't have a sheet for the '68 and I think it changed. Do I need to get the Jerry McNeish book (sp.) book? Would info like this be in there for me? Thanks in advance for any help, Brian