See also:

ON
This is the normal operating position after the engine is started. ...

Engine oil
For the checking, adding and replacing procedure or other details, refer to “Engine oil”. NOTE The procedure for changing the engine oil and oil filter should be performed by a properly-trained ...

When checking or servicing in the engine compartment while the engine is running
WARNING A running engine can be dangerous. Keep your fingers, hands, clothing, hair and tools away from the cooling fan, belts and any other moving engine parts. Removing rings, watches and ties ...