Quote Originally Posted by jeff View Post
puwede ko kaya gamiting alternative yung API CF SAE40(delo silver monograde) kahit na dati kong gamit na oil ay API CF-4 15w40(rimula-x) mahal na kasi ng rimula-x ngayon?
Pwede as long as your car only requires CF rated oil. But a multigrade CF-4 is better than a monograde CF oil. Downgrade yan. My advice is to use a multigrade oil. Kung mahal ang Rimula-X try mo sa Petron or Caltex. Meron din oils ang Total, Castrol etc...