Thanks Jess, but the problem is I got rid of the OE dipstick a few years ago. I know the bike doesn't use much oil, but I like to check it between changes anyway.
Well, you can probably find an OE dipstick on Ebay or motorcycle salvage yard. While 1500 Goldwings were made for some 12 years (?), I don't know if they used the same dipstick.
I have no idea if a new one can be ordered.
Or maybe you have a Valk rider somewhere near you, you could hook up and use his.
Or you do an oil change and use the new level to mark yours. There's old threads on here saying the Valk will take 4qts (vrs the manual 3.9) if you do a change with the bike smoking hot, lean it over on the drain pan and maybe bump the starter (but not start). Of course with a filter change too.