You should check your oil level around once a month. It`s better to be safe then sorry. Lack of oil will quickly kill your engine.
The dip stick and oil filler cap are located under the passender seat.
Parked on level ground, remove the dip stick and wipe.
Reinsert the dip stick, remove once more and check the reading. I always like to have the level slightly above half way.
If the oil is low, remove the oil filler cap, place newspaper or cloth under the cap to protect from spills. Pour in oil around half a litre at a time.
After pouring in the oil check the level on the dip stick again. If still low add another half litre.