Check your oil levels when the car is cold. The oil sinks to the bottom of the engine and you can check the level with the dipstick, which is located under the bonnet. Check your owner’s handbook for the locations of all engine fluids.

Carefully remove the dipstick and wipe it with a clean tissue or cloth. Replace the dipstick, remove and look where the oil level is on the gauge. There are two points on the dipstick: High and Low. The oil level should be between these two points.
If you require a top up of oil, make sure it is the right stuff (check your handbook) and top up the engine carefully, a bit at a time, through the engine oil fill cap.

Never over fill as too much oil can cause pressure problems.