I had 140k when my car was sold, driven hard everyday, and installed a S/C at 120k. Never once used an oil additive. Just Mobil 1 every 3-5k.
BTW every Zetec I have every heard had the tick.
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
