As an automotive expert with years of experience in the field, I can tell you that driving a car that burns oil is not ideal and can lead to several issues if not addressed promptly. Here's a comprehensive look at why this is a concern and the potential consequences:

Firstly, burning oil is a clear indication that your vehicle is not operating as efficiently as it should. Oil is a vital component for the engine's proper functioning, and when it is burned, it means that it's not being used for its intended purpose of lubrication and cooling. This can lead to increased wear and tear on engine parts, which in turn can reduce the lifespan of your engine.

Secondly, the exhaust fumes produced when oil is burned can be harmful to the environment and to the people exposed to them. Oil contains various harmful substances, and when it is burned, it can release pollutants into the atmosphere that contribute to air pollution and climate change.

Thirdly, burning oil can lead to a decrease in the engine's performance. As oil is consumed at a faster rate than it should be, it can result in the engine running hotter than normal. This excess heat can affect the performance of the engine and may even cause it to overheat, leading to potential engine damage.

Fourthly, the build-up of carbon on the engine parts is another consequence of burning oil. This carbon build-up can cause a variety of problems, including reduced engine efficiency, power loss, and in severe cases, it can lead to engine failure.

Fifthly, regular maintenance becomes crucial when your car is burning oil. You will need to monitor your oil levels more frequently and top up the oil as needed to prevent the engine from running low. This added maintenance can be time-consuming and costly.

Lastly, driving a car that burns oil can be a sign of a more serious underlying issue. As you mentioned, worn-out valve seals can be one of the causes. These seals prevent oil from entering the combustion chamber, and if they are damaged, oil can seep into the chamber and be burned with the fuel. This is not only inefficient but can also lead to more significant engine problems if left unchecked.

In conclusion, while it is possible to drive a car that burns oil, it is not advisable to do so over the long term. It can lead to environmental harm, decreased engine performance, increased maintenance costs, and potential engine damage. It is always best to address the issue as soon as possible to ensure the longevity and efficiency of your vehicle.

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A car may be burning oil for a few different reasons. ... These seals can wear out from high mileage, from low oil levels or they can simply dry out and crack if your car isn't driven often. If your valve seals are bad they can allow oil to seep past them while your engine is off allowing the oil to pool on the piston.Nov 18, 2015read more >>