so i have
owner in owner group, admin group, and default group 
admins in admins group and default group

what i want is to have owner in owner group only and admin in admin group only how do i achieve this thanks for any help.

well this seems stright forward and simple so maybe i'm missing something.....

only put owner in owner group, don't put them in admin group, and default group too... why would you do that in the first place?

i dont it does it automatically and with a permission manager i remove only for it to put them back into it after restart

The default and admin groups are automatic in Oxide, there is no option to disable that. If you do not want owners in the admin group, I'd suggest not using auth levels or changing the group name in the oxide.config.json configuration file. The default group will always have all players in it.