回複：I don't think so.

Thanks 孤舟獨釣.

I didn’t find any information about timing belt in 隨車手冊. Somebody told me to replace timing belt every 100km. That’s why I had it replaced at 100km 8 years ago.

My 1989 corolla is quite old. It’s not worth to spend more money on it because I don’t how long it is able to run.