Hi and welcome to Club X
Use only synthetic oils in all areas. Synthetics stop wear, but if you are not using it with that many miles, the first oil change of expensive oil should be done as soon as the oil looks dirty (which is metal and sludge worn off from non-syn oil use). You may even have to do it a couple of times before the normal change times.
By now, I am sure most of the rubber stuff on the engine is hard and needs replacing, including ALL the hoses!
With regular service, it should last a long, long time. (many more years)
2000 X SE
V6 SE 4X4 5spd Build and 00 Silver auto SE 4X4http://www.clubxterra.org/forums/showthread.php?t=26084
Raise TBs (X), paint plastics (X), Replace radiator with one that is bigger and will last (X), install roof lights (X), IAB (X), better tires (X), shackles in rear(X), remove rear sway bar (X), Bilsteins (X)