Originally Posted By: hardcore302
I don't know if I want to go from a 5w-20 to a 10w-40. Isn't the VCT oil pressure sensitive?
I do not have direct experience with VCT, do with Totoyas VVT. Think its the same philosophy. Will share it maybe helpful. There are other contributors such as mechanical failure but regarding oil pressure - if you lack enough initial oil pressure to move the (phaser?) to is low speed position, you may experience a startup tick, or a tick in general until you reach the speed the (phaser?) is positioned for at the time. I would try slightly thicker, a 5w-30, see what happens.