Help. Honda dylan gear oil what grade needed

Hi there fellow bikers.

I need to know urgently what grade gear oil or final drive oil goes in my honda dylan ses125 it's previouse was 75w 90.. But went to halfords to buy new and the tech guy says it should be 10w 40 scooter gear oil. Dot have manual so can not find correct info. The bottle he have did state 10w 40 scooter moped gear oil so this is now confusing me

Help and quick response is greatly appreciated

 

HYPOID SAE 80W/90 , a good brand name and hypoid oil but the weight markings are the key factor so its gotta be a 80w/90 for your dylan