I have found that the filter should be changed around 90K in normal use and 60K in severe conditions. Toyota Tech.
How often should you change the fuel filter?
once a week is recommended
You should get your floor machines serviced once every other year. They require regular upkeep in order to last a very long time.
Annually. If it`s fueled with oil absolutely annually.
Your fuel tanks are built to last the lifetime of your vehicle. They should only need to be serviced if they are damaged in an accident, or if some contaminant has been added to the tank.
once a year, or 15,000km whichever comes first.
Your tank filter should be changed every month. If your filter becomes clogged, it should be changed right away.
When it is dirty.
When it is dirty.
Inspect at least once a year, base service on what you see.
HVAC should be serviced about twice a year. I prefer service just before summer so I'm not left in the heat and just before winter so I'm not left in the cold.
You should change a furnace filter every 2-4 months.