Elka suspension oil ?

[steveatv3]

I have elka quadrate front shocks i would like to add more oil in them is that possible without draining the nitrogen air, if so how is it done?

or is it just worth it to send them out to get rebuilt?

This is not possible. question why would you just want to add a little oil is there some sort of leak. If so you would definatly need them serviced. Need more info on why you want to add oil