How the hell do I reset the "Change Oil" reminder?
thanks

On some of them you turn the ignition ON-OFF about 5 time and it clears.

GunLvr

1990-91 OLDSMOBILE CUTLASS CALAIS, CUTLASS SUPREME, CUTLASS
CIERA, CUTLASS CRUISER, EIGHTY-EIGHT, NINETY-EIGHT &
TOURING SEDAN
Engine Data Display
1) An oil change reminder displays estimated percentage of
the remaining useful life of the oil. When vehicle is started, a tone
will sound and approximate distance to next oil change will be
displayed.
2) When remaining oil life is 10 percent or less, the system
will calculate distance to next oil change. When the oil life is 0
percent, the display will show CHANGE OIL NOW. After changing oil,
reset oil life display.
3) To reset the display, press and hold in OIL button to
select the oil life display. Then, press and hold in RESET and OIL
buttons for at least 5 seconds. This will reset oil life display to
100 percent.