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Originally Posted by wotnot

It's a 2.0i engine.

I got an all inclusive free 5yrs BMW warranty/service pack including tyre and windscreen cover, so maintenance cost doesn't bother me now. But I'm worried this short mileage oil top up could turn out to be an expensive frequent visit to the dealer once the warranty is up.

Either find a good independent, do it yourself, or equally look at how you are driving the car.

Or get a 328i

Changing your driving can add extra miles to your oil changes.

Admittedly I do prefer annual oil & filter changes.