What are the causes of oil burning in horizontally opposed engines?

[DeHarley]

Horizontal opposed engine oil burning reasons are: 1. Faulty design of the crankcase forced ventilation system; 2. Mesh patterns on the cylinder walls. The hazards of engine oil burning: Generates large amounts of carbon deposits and gum, causing the engine to consume more fuel and lose power, while potentially leading to difficult engine starts and severe engine wear. The functions of engine oil are: 1. Alleviate friction and high temperatures; 2. Reduce gas leakage and prevent external pollutants; 3. Prevent contact of water, air, acidic harmful gases with components; 4. Buffer the pressure rise at the engine cylinder port; 5. Flush away dirt generated on component working surfaces.