I'm still thinking of mobil 1 5w50.
My gli is 2 lacs driven with mobil special 20w50, and it gave me 16km/l with ac from Lahore to ryk on average meter. Reserve light turned on at 700kms. That's cool for 1350kgs 1300cc car.
Although, I will get a difference of a minor fuel consumption as compare to thinner oil, but why not better protection coz I'll be driving in harsh and changing enviornments, sometimes I drive consistently at 160-170 on motorway for 2 hours.
Also, i'll be using mann oil or k&n air filter with it.
@xulfiqar bhai I'm confused again.
Toyota oil is at 4100rs and Mobil1 is at 4900