Zic A+ is fully synthetic with SAE 5W-20 .
The issue is understanding the SAE 5W-20, what does this mean
SAE defines standard for motor oil viscosity grade
Viscosity of oil is its ability to flow at a specific temperature. The higher the viscosity longer it will take it to flow at a certain temperature simply saying it is thicker or heavier. Lower viscosity oil will flow quicker at specific temperature simply thinner or lighter.
5W-20 means that it has multigrade viscosity within a specific temperature range. Simply saying it has characteristic of more than one oil.
W means winter or cold i.e 0 F (-18c)
5W means it will give optimum protection in cold starting and cold running even at sub zero climate as it will circulate through the engine quicker.
20 defines the oil dynamic viscosity at high sheer rate (150C). 20 being very low will not provides optimum protection against engine wear at 40+ C weather and stop and go city traffic. It may give fuel economy (2% max) but may also cause oil pressure drops at higher rpms causing metal to metal contact ( 30% reduction in engines service life ) which I am sure you dont want.
ZIC OW-30 (Fully synthetic)API-SN in winter (DEC - FEB)
ZIC 10W-40 (Semi Synthetic) API-SN in Spring, Summer & Autumn (MARCH - NOVEMBER)
valid for new PS Alto running in Punjab and sindh.
As you have asked Xulfiqar (and he is more than welcome to correct me) so you can wait for his reply.