@docjunaid for my 2002 Vitz, i was using the imported total synthetic 7000, its no longer avalible so i either use ZIC blue can (dont remember the SW of it) or Caltex 10-30 regular red cap one.
This car was purchased used, ive driven it for around 3000 kms now. , 2000 on the new oil, I plan to stretch it upto 5000-7000 kms on this oil lets see the oil condition by them.
@everybody, Im not if its the CVT or the oil i changed both of them at the same time, The CVT was still red which means was good, The oil was dark black when i got the Caltex Havoline, Its been 3 refills not and Alhamdulillah from 9-9.5 km/L my cars doing 13.6+ km/L mashaAllah.
@dynamicallystatic, Yes every 1000cc car uses 3L of engine oil, using the usual Caltex 10-30 Red cap is the best option if you wish to replace it every 3 to 5 thousand kilometers, Other then that varius brands are avalible in the market, My recomendation is to avoid Shell oils.
Caltex, Total, Mobil, Zic all are good brands.