I just turned over 150,000 on my 98. I've run mobil 1 in it since new. I use about 3/4 of a quart between oil changes (7,000-10,000 miles). i've replaced the computer twice, O2's once, plugs once, One U-joint, Two sets of tires, front brake pads. It still runs strong, but the tranny has been making noise for the past year & a half.