Changing of diff oil?

[Pavlovski]

Hi Guys

I'm posting on behalf of my old man.
He has a 2010 1200GSA, just went over 22 000km. He wants to know at which intervals should the diff oil be changed?

Any advice/experience?

 

[Adventurer]

 

[kwassi]

 

[Beebop]

 

[Jughead]

 

[kwassi]

 

[smithcorne]

 

[kwassi]

 

[kwassi]

 

[kwassi]

 

[kwassi]

 

[EssBee]