I bought a second hand car and planning to change the engine oil. According to the manual and last PMS in the case, the oil used is 10W-30. This morning, we went to two Shell gas stations to inquire. They said Shell does not have a 10W-30 sa Pinas. Ang meron lang is 5W-40. I do not know if I should continue my search or try na yan. Let me know your thoughts. Salamat.