10/30 oil is almost out (from Pak. market).
Only Toyota has imported huge stock and pushing their consumers to use 10/30 oil. Whereas this oil has almost lost the market.
Using 10w oil for brand new car is not good choice either.
0/30 would be the best choice.
Try to find LM's 0/30. Because among all the available oils of LM, 0/30 is most high performance oil after 0/40.
Castrol 0/30 is also good.
If that noise was because of engine oil, then I hope using 0/30 oil would eliminate it and will give extra ordinary better performance too.
CI as 8~10K would be fine depending upon oil condition, your driving style, etc.