My car's front right tyre loses air quicker than the other 3 tyres, checked twice but no puncture and valve is also tight
Probably needs a reseal.
and what is that?
Get your wheel checked for cracks or bends if it's a steel wheel.
its alloy rim and tyre shop guy checked the rim from inside and rim border and said it's ok
third class quality nozzles in marketmost probably leaking from it when pressure applied
so should I just simply get the nozzle replaced?
no harm in spending 3-400 if it fixes the problem ?
of course
Exactly .. on a side note nice to see you are still helping out fellow PWs like the old days