Why does the Lavida naturally aspirated engine burn oil?
2 Answers
Lavida naturally aspirated engine burning oil is either due to piston ring wear causing oil to enter the combustion chamber and participate in combustion, or because the selected oil is too thin which also leads to excessive oil consumption. Normally, oil burning in naturally aspirated engines is relatively rare. Below is relevant information: 1. Most vehicles exhibiting oil burning show excessive oil consumption over a certain mileage, such as the dipstick dropping about 5mm per 1000km - this would indicate severe oil burning. If the Lavida shows oil burning, it could be due to piston ring wear allowing oil lubricating the cylinder walls to enter the combustion chamber and participate in combustion before being expelled through the exhaust valve. Alternatively, valve stem seal leakage can similarly allow oil to enter the combustion chamber. 2. Of course, poor performance of the oil-gas separator can also cause liquid oil in oil fumes to not be separated out, entering the combustion chamber along with the oil fumes and being burned. The owner's choice of excessively thin oil can also lead to high oil consumption. If such oil burning occurs, the owner can visit a service station for an oil consumption test to measure the amount of oil being burned before proceeding with inspection and repair.
As an auto mechanic, I've seen many cases of Volkswagen Lavida naturally aspirated engines burning oil. This is mainly caused by piston ring wear, where oil slowly seeps into the combustion chamber and gets burned. You might notice some blue smoke coming from the exhaust pipe when driving. Another common reason is aging valve stem seals that no longer provide a tight seal, allowing oil to leak through. Some Volkswagen engines might also have minor design issues, such as piston rings made from less durable materials that tend to fail after about 70,000 to 80,000 kilometers. Additionally, maintenance habits play a crucial role—some people use low-quality oil or extend oil change intervals too long, accelerating wear. I recommend car owners regularly check the dipstick. If they notice faster-than-normal oil consumption, they should visit a professional shop for diagnosis rather than waiting until the engine starts making unusual noises, as repairs at that stage become much more expensive. Developing good habits can naturally extend engine life.
