Which Civic Model Experienced Engine Oil Dilution?

[DeMarley]

1.5T variant models. Dilution issue: The increased engine oil originates from gasoline used for engine power. During repeated piston movements, as piston rings are not completely sealed, engine oil may seep from the piston rings into the combustion chamber, while gasoline participating in combustion may infiltrate the engine oil. Piston rings are responsible for sealing between pistons and cylinder walls. Due to installation requirements, there is always some clearance between piston rings and pistons, leading to blow-by between piston rings and cylinders. During engine operation, small amounts of fuel vapor and liquid fuel can enter the crankcase through gaps between piston rings and cylinder walls. Gasoline and cylinder oil film: When gasoline mixes with the cylinder oil film, it becomes difficult to vaporize. During cold starts, combustion becomes even more challenging, causing this gasoline to blend with the oil film on cylinder walls and be scraped by piston rings into the crankcase. Insufficient gasoline atomization allows it to adhere to cylinder walls before flowing into the crankcase, where it cannot be promptly recovered.