Many mehran owner using ZIC A+ or other synthetic oils (even many using Liqui Moly Oils).
I?ve read the manual of Mehran. And Suzuki very clearly & only recommends the below two engine oils which are as follows
10w-40 SG, SH Grade.
20w-50 SG, SH Grade.
Both are Mineral oil.
So plz only go for OEM recommendation rather than feeding synthetic or expensive oils which are infact unfitting for Engine.