Essentially the basic design of the BMW R1150GS means that, treated right, it’ll run forever. However, the paint on the motorcycle's cylinder heads flakes off, as does the finish on the forks, the petrol cap lets in rain, the downpipes go brown, the O-ring inside the oil filler cap breaks causing oil to seep out the seal and you really need to keep an eye on the BMW R1150GS' oil level.