Answer:
Routinely
Step-by-step explanation:
It is necessary to check the conditions of parts of a vehicle in order to ensure its effective running and avoidance of faults.
It is advisable to routinely check the fluid levels. The fluids include oil, radiator and washer fluid etc.
It is also advisable to routinely check tire pressure and condition of the tires. Oil should be changed and point lubricated at every 3000 miles.
