Will the engine sealing ring leak oil?

More than 90% of the oil leakage problems are caused by the alternating change of cold and warm temperatures of rubber sealing rings for a long time, which leads to a large loss of plasticizers and softeners, leading to corrosion, aging and hardening. At first, there was oil leakage, and it began to drip slowly. After a long time, the sealing ring is broken. In the past, oil leakage was solved by disassembling the engine and replacing the oil seal. With the development of science and technology, the problem of oil leakage can be solved without dismantling or repairing.