One problem related to power steering fluid has been reported for the 1998 Mitsubishi Diamante. The most recently reported issues are listed below.
Kumho 716 hp4 p215-60-16 94h dot # 4tl1-yp71-2501 h-rated tires were not the correct rating that was supposed to be put on vehicle. Contacted dealer who was not willing to do anything. Consumer also states that cd player is inoperative, no radio code stored, armrest compartment hook lock broken, power steering fluid on minimum level.