At the time oil change make sure you use the recommended lubricants only. Check the packaging of the oil to make sure it is not spurious. Always buy from recognized dealers and outlets. Change oil filter at the time of an oil change. Never drive your vehicle if the engine oil level is low or it does not have engine oil.
Most cars have an indicator for engine oil on the dashboard instrumentation plaster.
If it indicates low oil do not drive the car till you refresh the engine oil.