Volvo waste valve leaks oil.

Wear between valve guide and valve stem. When the wear between the valve guide and the valve stem is serious, a large gap is generated, which leads to oil leakage of the waste gas valve. The solution is to find the damaged place and replace it. Volvo, a famous Swedish luxury car brand, was once translated as "Regal". The brand was founded in Gothenburg, Sweden, 1927.