There's a lot of information on the packaging for your engine's motor oil, but the S designation may be one of the most important to look for.

MELAKA: Starting April 7, the government will enforce the Trade Descriptions Order (Certification and Marking of Engine Oil ...

Starting next month on April 7, 2025, all engine oil products must have a SIRIM certification to ensure its authenticity.

Motor oil containers or packaging normally have labels that show the API (American ... that the oil is used for spark or service ignition engines. A spark or service ignition engine is the most ...