I have just received advice today that when the Toyota Starlet was first released, the recommendation was to change the timing belt at 100,000 km. But over the years Toyota found that the belts lasted much longer so this was was changed to 150,000 km.
I am now trying to ascertain what the current situation is. If it is still 150,000 km then I will do nothing because my car has 118,000 km on it.