ano po magandang oil ang ilagay sa 4k engine? magpapachange oil po kasi ako eh..di ko po alam kung anong maganda ilagay na oil.saka ano pong grade ang maganda?
please advice po. thanks in advance.
at the time your engine was designed, the oil designed for it was SC/CD on the API (american petroleum institute) 15W/30 SAE ( society of automobile engineers) if i'm not mistaken but it is safe to use this oil as a minimum requirement, today's oil is on SM/CD protection level. your concern is only on the S rating (spark ignited) and you can ignore the C rating (compression ignited-diesel) rating.