Which Honda engine model experiences oil dilution?
2 Answers
Honda's engine affected by oil dilution is the 1.5T Earth Dreams engine. The oil dilution issue in this engine occurs due to incorrect fuel injector angles. The injectors in this engine tend to spray gasoline onto the cylinder walls, allowing fuel to seep into the oil pan and mix with the engine oil, resulting in increased oil volume. Engine oil serves multiple critical functions including lubrication, cleaning, sealing, cushioning, rust prevention, and heat dissipation. An engine cannot operate without oil. During operation, the oil forms protective films on engine components to prevent direct metal-to-metal contact and friction. Honda is a multinational automobile manufacturer listed on both the Tokyo and New York Stock Exchanges, with current product lines comprising four main businesses: automobiles, motorcycles, power products, and aircraft.
The Honda oil dilution issue primarily occurs in their 1.5-liter turbocharged engines, especially the L15B model from the Earth Dreams series, commonly found in vehicles like the CR-V and Civic. I've repaired many of these cars, and the root cause is fuel mixing into the engine oil due to direct injection technology, which dilutes the oil. This issue is more noticeable in winter or during short-distance driving. It can lead to increased engine noise, reduced power, and in severe cases, engine damage. Honda previously issued a recall to update the software, optimizing fuel injection and addressing idle issues. I recommend owners regularly check the oil dipstick to ensure it's within the normal range; if the oil appears thin or has a gasoline smell, they should visit an authorized dealership for inspection as soon as possible. Additionally, using highway routes more often during daily driving can help reduce the risk of fuel accumulation.
