Robin mine has a spot on the bottom of the rod that looks like it was sand blasted and at the top of the sand blasted mark is full. If you would like i can send pics i'm changing oil tomorrow .
Who Dat
Mine looks like that. I still can't tell where the level is with it.

I just use the old dip stick. I can tell the level on that. I just keep the old dip stick with my stock of filters, crush washers, oil wrench and oil.