20W50 is way too thick of an oil for a small lightweight engine like the Corollas. Your fuel economy will suffer
immensely. Stick with the what's recommended in the owners manual. Oil additives are completely unnecessary as long as you change your oil on time. As far as quality oil filters go, stick with OEM, Purolator PureONE or Napa Gold/Wix.
immensely. Stick with the what's recommended in the owners manual. Oil additives are completely unnecessary as long as you change your oil on time. As far as quality oil filters go, stick with OEM, Purolator PureONE or Napa Gold/Wix.