Well can a Stihl cap be retrofitted to a 25 year old saw and vice versa like a Husky flippy cap?
Nope, not made the same. Flippy cap Stihl saws will only accept Stihl flippy caps because they have "flippy cap exclusive" tank openings in which only flippy caps will fit. So.....standard threaded caps will not fit in flippy cap tanks openings and flippy caps will not fit in standard tank threaded openings.
How many caps could a flippy cap flip if a flippy cap could cap flips??????