as i said YOU CANT CHANGE THE DATE OR MILEAGE THE SPANNER COMES ON!!!!! it has two presets...1 year or 10,000 miles what ever comes first....... just in case people still dont get the drift... you do 10,000 miles in 2 months the light will come on you do 1000 miles in a year the light will come on YOU CANT CHANGE THIS........ and yes they have put too much oil in!! .2 above the mark and the spanner light commes on.... i am a licenced tec,diagnostic tec and mot tester for a main dealer and have been for many years....