Is Engine Oil Burning a Common Phenomenon in the 2018 Odyssey?
2 Answers
It is not a common phenomenon, but rather an isolated occurrence. Poor Fuel Quality: The primary cause of engine oil burning in cars is poor fuel quality. When fuel cannot be fully combusted, it generates a large amount of carbon deposits. Over time, these deposits accumulate and thicken, with some entering the piston. This causes the piston rings to stick and the oil return holes to clog, creating gaps in the engine. Air then enters the combustion chamber through these gaps, participating in combustion and leading to the phenomenon of oil burning. Traffic Congestion: Due to traffic congestion in domestic areas, fuel cannot be effectively combusted, resulting in significant carbon deposits. These deposits clog the oil return holes, preventing the oil scraper rings from removing oil from the cylinder walls. The oil then remains in the combustion chamber and burns, causing the oil burning phenomenon. Aging Valve Stem Seals: Aging valve stem seals can also lead to oil burning. Valve stem seals are made of heat-resistant and oil-resistant rubber. These seals are exposed to high temperatures, gasoline, and engine oil, along with temperature fluctuations from cold and hot operating conditions. Over time, the plasticizers in the seals are depleted, causing the seals to shrink. This allows engine oil to enter the combustion chamber and burn, resulting in oil burning. Substandard Engine Oil Quality: Substandard engine oil quality is another cause of oil burning. If the oil quality does not meet standards, its lubricating effectiveness diminishes. Combined with carbon deposit accumulation, the oil loses its lubricating properties, making it easier to wear down the cylinder walls. Such wear increases the engine temperature, quickly leading to cylinder scoring and engine failure.
As a frequent driver of the family-oriented Odyssey, I've discussed the oil consumption issue of the 2018 Odyssey with fellow owners. Overall, this vehicle is quite reliable, and oil burning isn't a widespread problem. Honda's 3.5L engine had already undergone design optimizations by 2018, significantly reducing the oil consumption issues seen in older models. However, isolated cases still occur—particularly with aggressive driving habits or neglected maintenance, which can accelerate oil consumption. For instance, frequent short trips without proper engine warm-up can lead to increased carbon buildup inside the engine, worsening piston ring seals and causing faster oil burn. It's advisable to regularly check the dipstick and switch to high-quality full synthetic oil if levels drop. Most 2018 Odyssey owners in our forum report no issues over 30,000–37,000 miles, with normal oil consumption. But if abnormalities arise, a professional inspection of seals or filters is needed. Proactive maintenance helps prevent problems before they start.
