I have Mehran 2010 VX, recently i got its engine overhauled completely. Before overhauling engine i used oil of viscosity 20w-50 API SG of Total, due to white smoke emitted at start up and the weakness of engine at that time.
Thermostat valve is installed and radiator fan is working automatically as well. Right now car is break in period, oil needs to be flushed in few days.
Can experts advise oil having viscosity of 10w-40 & having API SG other than Suzuki Premium 10w-40.
Does Mehran need synthetic/semi synthetic oil or mineral oil is just enough for it