With modern vehicles utilising thinner oils and reducing internal engine friction designs, the oil consumption on many of these vehicles dramatically increases to a point where the oil level of the engine may require topping up between services and in some cases more than once.
If the vehicle utilises an oil level sensor, the early warning display generally allows the driver time to top up oil levels prior to any major disaster. A vehicle without the level sensor may be driven to a point where the oil pressure is compromised. Checking for correct oil level is the first priority when any oil warning light is illuminated.
Note: it is important that the oil level is within the correct range and not over or under required limits as both conditions may cause excessive engine damage.