From next time, 1st try fully synthetic 5w-30 engine oil by Total, Caltex / Havoline, or even Kixx or PSO (PSO being thickest in these all 04, but still, fully synthetic and 5w-30).
If it does not suit, next is 10w-30 by Caltex / Haviline.
Lastly, 10w-40 fully synthetic by ZIC.
Just ensure that oil is 100% authentic. Change oil + oil filter after every 5,000 Kms / 06 months (whichever comes 1st), and if oil level drops in-between, simply top it up.