Royal Purple full synthic on all of 'em.Oil filter too.
K& N air filter.M 3 plugs.
Carefull with the trans oil. They were fixin' to put AFT in mine before I noticed. It's the same oil as one puts in the differencial.
The X Runners do not have a specific manual.
Since the truck is used with almost 100K I would suggest new tranny fluid, new rear axle fluid, new plugs, inspect brake fluid quality, coolant quality inspection, new air filter and new engine oil and filter.