AOA all, please help me regarding engine oil 4 next oil change of my city 2008. i drive very softly both in city and on long routes and my priority is good mileage and low engine noise. i can use either synthetic or non synth. im currently using zic A but i am not satisfied with it any more. im bit confused between petromin ultra, castrol magnetic, micking and havoline 10-40. ur worthy comments are appreciated. thanks