I replaced the O2 sensor at 170,000.
I replaced the EGR valve at 210,000.
Exterior temperature sensor for the climate control just failed at 210,000.
An excellent boat type ride, I drive 30,000 to 50,000 miles a year and am never tired from the drive.
The 3800 motor is bullet proof. This is my second 98 and have placed well over 250,000 miles on these motors.
Over all an excellent car, wish GM would keep building the 98.
I have a problem with my 94 Olds 98. It is running but there seems to be a fuel problem. It idles fine but when getting on the gas it is sluggish and even sometimes stalls. It does this in drive and in park. Does this sound familiar to anybody. It has almost 160,000 miles thanks for your thoughts! Randy.