2001 Chrysler Concorde what kind of oil and timing question

Engine Performance problem
2001 Chrysler Concorde 6 cyl Front Wheel Drive Automatic 135'000 miles

what kind of oil am i supposed to be using for the 3.2l?

and is this a zero tolerance when it comes to the timing belt?
if i dont replace it now will i bend the valves when it does go?

any help would be greatly appreciated, i have no problems just looking at preventive stuff.