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Message: <blockquote data-quote="Silver" data-source="post: 281761" data-attributes="member: 4217">Guys - quite honestly, the "first fill" engine oil will last 25km without a sigh. The oil you get when you pick up your car for the first time (in BMW's case its Castrol) comes with an extremely high grade lubricant - that is not available to a retail consumer. The cost per litres of this oil is in the range of about USD50/litre (depending on brand) - and is supplied directly to manufacturing plants. The engine is then supplied "wet" with the lubrication to assembly plants around the world. Oil companies that supply "first fill" lubrications for 'high end' engines normally find it difficult to make money from this arrangement (due to the high cost of the Group 3 or even Group 4 base oils used and the extensive development cost and approvals required) - but they will still do it to get a share of the after sales service business - once the OEM endorses their lubricant as the engine's "first fill".... That said - there is always merits to be extra safe in changing your lubricant once your car clocks 10,000km.... and thereafter you should change it every 10,000km - if you do use Synthetic Lubricants, and I would strongly encourage you to only run your engine with fully syn lubricants for brand new engines....</blockquote>