OIL, IN01 and IN02 you mean?
Ignition off
Press and hold trip button (left)
Ignition on
Ignition off
Release button
Press lower button (min button) on right hand side for 3-5 seconds until display says " - - - - "
Release button
Press trip button till it displays what flashes up Oel -> 01 -> 02 (Oil, small, large)
Press lower button on right again for a few seconds and horizontal lines show up again
Release button
Ignition on
Display should flick to "00"
Igntion off
Done.
