1996 Cadillac DeVille Owner's Manual - Page 134

Have you recently changed brands fuel? of If so, be sureto fuel your vehicle with quality fuel (see "Fuel" in the Index). Poor fuel quality will cause your engine notto run as efficiently as designed. You may when notice this as stalling after start-up, stalling you put the vehicle into gear, misfiring, hesitation on acceleration or stumbling on acceleration. (These conditions may go away once the engine is warmed up.) ! This will be detected by the system and cause the light to turn on. Oil Pressure Light This light tells if there you could be a problem with your engine oil pressure. If you,experience this condition, change the fuel brand you use. It will require least onefull tank of the at proper fuelto turn the light off. If none of theabove steps .have made the lightoff, turn have your dealer or qualified service center check the vehicle. Your dealer has the proper test equipment and diagnostic toolsto fix any mechanical or electrical problems that may have developed. The light goes on when you turn your key to RUN or STmT. It goes off once you start your engine. That'sa If check tobe sure the light works. it doesn't come on, be .sure to have fixed so it will be there to it warn you if something goes wrong. When the lightcomes on and stays on, it means that oil isn't flowing through your engine properly. You could be low on oil and you might have some other system problem. 2-71