okay here is the deal my 8 has only 19k on it , its a 2006 gt Mica grey.......and i started to change my oil at home due to dealers constantly overfilling it.....i change my oil every 3000km yes i am crazy but want my engine to run nice.....anyway the delare keeps on calling me saying i have a 24 k service coming up and oil change i told them i dont have 24k yet and my oil was changed so......my though is will any off this void the warranty???