According to the service schedule that came with the vehicle the air cleaner filter is not replaced ever??? (They just indicate "C" for check, up until 97500km - the last service on the schedule). How often should this filter be replaced (in the real world where most of us actually live????)

Also, The schedule indicates that the diesel filter is only replaced every 60000km. Is this OK, or should i replace it more often

What else do you suggest should be replaced, check or lubed during this 97500km service???
All oils were replaced from the front bumper to the rear bumber during the 90000km service, so I guess I'll only have to change the engine oil now. I've already bought Delo 400 for that and still need to get the oil filter.