You think your mini is bad get a Mazda rx8 and it needs fully synthetic nonsense lol
Off topic but... when we launched the RX-8 in Germany we had a presentation that described the rotor lubrication system to customers, so we could manage their expectation on oil consumption. The dealers offered a free oil check and top-up to owners for the first year or so.
The RX-8 engine runs on mineral oil by the way and was eventually withdrawn because, even with massive port layout improvements over the RX-7, it couldn't meet the next generation of emission requirements.