masuk the highest viscocity that the engine could accept.
oil really thin in our climate, even 20w-50 is thin.
i always use full synthetic 5w-40 if the engine allow.

see this engine, sumbat la apa pun
https://www.reddit.com/r/COROLLA/comments/1..._oil_viscosity/

This post has been edited by zerorating: Dec 5 2025, 01:03 PM