Actually you dont need to put expensive oil it duznt make much difference it all depends on climatic conditions and how much you press the accelerator paddle.
5-30 sai aur behtar kiya chahiyay? hum hoi siberia main to nahi reh rahay keh 0w20 ya 30 use kerain.
on top of that yeh to pata ho ga keh asal total ka oil hai koi doo number nahi hai. that for me is a big pain keh oil doo number ho.
aur btw i poured liqui moly ka behtareen wala oil in my 660cc alto with friction resistance additive ceratec which is best oil additive my moly.
their answer was keh bhai sb akal kerain aur 5000 tuk max oil use kerain aur manufacturer ki hadayat per amal kerain hum per nahi. kiun keh humai nai pata keh ap kai mulk main kia conditions hain aur oil kitna chalay ga.
See this post by me and coordination with moly and reply from @Xufliqar who is a major car expert.
yeh dekho: https://www.pakwheels.com/forums/oil-fuel-fluids-filters/245396-xulfiqar-what-do-you-think