One problem related to battery has been reported for the 1998 Oldsmobile 88. The most recently reported issues are listed below.
1998 Oldsmobile eighty eighty has problem where there is leakage of battery fluid from the positive pole of the battery. The positive pole had come out of the battery and caused the vehicle to come to a complete stop. The driver had no control of the vehicle. Three battery's had been replaced, the first was still under warranty. (ac delco battery).