I have changed my first engine oil in my Suzuki Gd110S at 850 KMs after initial free service maintenance.
I have put in Liqui Moly 20 W 50 Engine oil 1000ml in my bike. And replace Engine oil filter with Original Suzuki.
My verdict: the bike has become more responsive and engine sound is decreased. Pick is improved.
Proud Suzuki Gd110S owner