1999 Oldsmobile 88 Owner's Manual - Page 121

yellowblue If so, your electrical system may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off. Have you recently changed brands of fuel? If so, be sure to fuel your vehicle with quality fuel (see "Fuel" in the Index). Poor fuel quality will cause your engine not to run as efficiently as designed. You may notice this as stalling after start-up, stalling when 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. If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off. If none of the above steps have made the light turn off, have your dealer or qualified service center check the vehicle. Your dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that may have developed. Engine Oil Level Warning Light When the CHECK OIL warning light comes on, it indicates that the engine oil level is 1 to 1 1/2 quarts (0.95 L to 1.4 L) low. A warning chime may also sound. The warning light will come on for two to four seconds when the ignition is turned on, as a bulb check to show you it is working. It will then go off. If it doesn't come on, have it fixed right away. Even if you have a low oil level, it will go off for 15 to 25 seconds. Then, if the oil level is low, the warning light will turn on for about one minute and a warning chime may sound. If the oil level is okay, the warning light will remain off. If the warning light comes on after the 15 to 25 second delay, check the dipstick level. If it reads low, the engine oil should be brought up to the proper level (see "Engine Oil" in the Index). The warning light or message will remain off after the engine oil has been brought to the proper level and the ignition has been off for eight minutes. The eight-minute delay allows the majority of the oil to drain back into the oil pan to prevent a false low condition. 2-65