Any recommended which brand of fully synthetic engine oil is better?
I feel the vehicle quite heavy during driving on the ride, feel like got something pull the vehicle ln the road.

Heard my friend say after change to Japan one (forget what brand name alteady), better quality of fully synthetic oil. The vehicle condition is more smooth than use original one. Plus pump RON97 quality petrol fuel, straight away save fuel plus the vehicle getting lighter (not heavy) than previously.

So guy, any suggestion? Do you do it by yourself or still walk in P2 service center?

Thanks for your suggestions.
But wanna to learn and read the short code from original Perodua engine oil.

Normally for Alza using semi-synthetic 5W-30..
So what does the means of "W" code?

Thanks for your information.
Sometimes I saw behind there is 30SA..

SA stands for.....?