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Message: <blockquote data-quote="lwloh" data-source="post: 621772" data-attributes="member: 18923">by the way, from what i understand and read lately, the M54 engine is designed for BMW longlife 01 and i understand longlife-04 is for petrol with low sulfphur and therefore not ngam with malaysian petrol which has higher contents of sulphur. So i guess M54 is not recommended to use BMW longlife 04 oil. Correct me if i am wrong ?By the way, the new API SN is better in protecting the engine than SM but i duno if there are any oil out there with SN classification and LL-01. Any comments ? I always put top grade oil into protecting my engine as i am kaki tekan. haha need to extract more power from my M54 efficiently.:burnout:</blockquote>