Thanks Ry.

c. since i'll be using mineral-based oil, i will change oil every 5K or 6 months whichever comes first.
d. oil filter, yung mga VIC brands cguro ok na ako. ganon gamit ko dati sa big body corolla ko
e. i use the car twice a week going to the office. then kung weekends 10km back and forth lang on saturdays. relax driving lang.

my car is Innova 2009 GAS.

I tried Delo Gold before on my corolla. try ko siguro yan Shell Rimula R4x.

hihina kaya hatak ng innova ko kung mag balik ako sa mineral-based oil?

btw, naka K&N drop-in air filter ako.