Why should you check your oil every time you fill your car?

If you car does not normally use any oil there is no need to check the oil level at every fill up. Checking it once a month will suffice. However if your car burns or leaks oil checking it at every fill up may be a good idea. Reason being you do not want to run an engine that is low of oil and take a chance on doing damage to the engine from low oil pressure.