Does the Honda Haoying still have engine oil dilution issues?
3 Answers
Honda Haoying does not have engine oil dilution issues. The main functions of engine oil are as follows: 1. Lubrication and friction reduction: It forms an oil film on the surfaces of two sliding components, ensuring smooth operation. 2. Auxiliary cooling: It helps dissipate heat from components. 3. Cleaning: It carries carbon deposits, sludge, and worn metal particles back to the oil tank through circulation, flushing away contaminants generated on the working surfaces of parts. 4. Sealing and leakage prevention: Engine oil forms a seal between the piston rings and pistons, reducing gas leakage and preventing external contaminants from entering. 5. Rust and corrosion prevention: Lubricating oil adheres to the surfaces of parts, protecting them from contact with water, air, acidic substances, and harmful gases.
My Honda Breeze is a 2018 model, and I initially encountered the oil dilution issue where the oil level on the dipstick was noticeably above the max mark during startup, with a distinct gasoline smell. It was due to a design flaw in the 1.5T engine that allowed gasoline to mix with the oil. Honda later issued a recall to upgrade the software, adjusting fuel injection timing and temperature control. Vehicles manufactured after late 2019 basically don’t have this problem anymore. Now, I check the oil level regularly, especially before cold starts, to ensure it stays within the normal range. Honda also extended the engine warranty. As an owner, I think new models shouldn’t be a concern, but older ones should visit the dealership for a free software update to prevent accelerated wear. Those who frequently drive short distances need to be extra cautious, as the issue is more likely to occur when the engine doesn’t fully warm up. Overall, Honda’s fixes are reliable, and the newer Breeze models have improved designs.
From a technical perspective, the oil dilution issue in the Honda Haoying originated from the wet wall effect in early 1.5T direct-injection engines. During cold starts, excessive fuel injection led to gasoline flowing into the crankcase and diluting the engine oil. After identifying the problem, Honda issued recalls to update ECU software, optimizing fuel injection logic and warm-up procedures, while also replacing certain sensors. The current Haoying models feature an enhanced engine version, with user feedback indicating significantly reduced oil dilution rates. I recommend owners use diagnostic tools to monitor oil conditions, especially performing a check after short winter drives. Honda's response has been thorough – current market reports show minimal recurrence of the issue, with greatly improved reliability in newer models. While excessive anxiety isn't necessary, regular maintenance remains essential.
