1. Turn on Ign and wait for the mileage to display
2. press and hold "0" button for 30 seconds you will hear a beep to confirm this, release button
3. then press m button repeatedly until you see .51 in the display (assuming you have added 229.51 spec oil)
4. Then press and hold "0" button for 2 seconds it will beep to confirm and display a large 2 in the display let go of button and press and release The "0" Button,the word done should come up turn off ign and turn back on to confirm.