Why does the 7th-generation Accord have high fuel consumption?

[LaKathryn]

The reasons for high car fuel consumption include abnormal tire pressure or switching to larger-sized tires; not turning off the engine during prolonged idling or frequent ignition; aggressive acceleration and frequent braking while driving; driving at high speeds in low gears or low speeds in high gears; fully open windows in summer and using air conditioning during traffic jams; not planning the route properly, driving on congested roads, and frequent lane changes. The combined fuel consumption of the 7th-generation Accord ranges from 4.2-6.5L/100km. There are a total of 9 models of the 7th-generation Accord currently on sale. The Rui Cool Edition and Rui Leading Edition have a combined fuel consumption of 4.2L/100km. The Phantom Night Rui Smart Edition and Phantom Night Rui Premium Edition have a combined fuel consumption of 4.4L/100km. The Comfort Edition, Luxury Edition, and Premium Edition have a combined fuel consumption of 6L/100km. The Phantom Night Flagship Edition and Phantom Night Premium Edition have a combined fuel consumption of 6.5L/100km. The above figures are the NEDC combined fuel consumption, which is higher in real-world conditions, averaging around 7.6L. The above figures are the NEDC combined fuel consumption, measured under the NEDC test procedure. Real-world fuel consumption is higher than this value, averaging around 7.6L. Methods to reduce fuel consumption: Clean engine carbon deposits: Excessive carbon deposits in the engine are a significant cause, mainly due to the use of unsuitable fuel. It is recommended to add a certain amount of cleaning agent when refueling. If the effect is not obvious, it indicates a large amount of carbon deposits in the engine. In this case, the car must be taken to a 4S shop for professional technicians to clean the carbon deposits in the engine. Check the oxygen sensor: As an internal control unit of the car, the oxygen sensor mainly monitors the fuel-air ratio in the engine. Once damaged, it will cause an imbalance in the fuel-air ratio, leading to a sudden increase in fuel consumption. After the oxygen sensor is damaged, the exhaust pipe will emit darker-colored exhaust gas during driving, and the oxygen sensor should be replaced at this time. Regularly replace the three filters: During vehicle use, the oil filter, air filter, and fuel filter must be replaced regularly. If not replaced for a long time, they become dirty and send incorrect information to the engine control unit, resulting in incomplete fuel combustion and increased engine carbon deposits. Check the electronic control unit: Although the engine's electronic control unit is highly reliable, in older vehicles, various faults may inevitably occur.

[EvaLynn]

I also experienced high fuel consumption with my 7th-gen Accord. Common causes include driving habits like frequent hard acceleration and braking, as well as repeated stop-and-go in city traffic which drastically increases fuel usage. Another factor is poor maintenance - clogged air filters or worn spark plugs reduce engine combustion efficiency, naturally consuming more fuel. I suggest starting with simple checks: insufficient tire pressure affects fuel economy, so inflate to recommended levels promptly. If that doesn't help, check for excessive AC use - running AC at full blast in summer increases fuel consumption by about 10%. Regular minor maintenance like oil and filter changes can effectively control fuel consumption, preventing long-term budget strain from high fuel costs.

[VonCassidy]

When experiencing high fuel consumption, I usually consider engine-related issues, such as severe carbon buildup on spark plugs causing incomplete ignition, or malfunctioning oxygen sensors misleading fuel injection. For a seventh-generation Accord with significant mileage, increased mechanical wear and high drivetrain resistance can also elevate fuel consumption. Maintain smooth driving habits, avoid aggressive acceleration, and use cruise control on highways for better fuel efficiency. Additionally, environmental factors like high altitude or extreme temperatures can impact consumption. Simple self-checks include observing exhaust for black smoke or detecting gasoline odors, which may indicate combustion issues. Promptly visit a professional workshop to diagnose potential abnormalities in the engine control unit.

[DeAlina]

If your car is also a 7th-generation Accord and experiencing high fuel consumption, don't panic. Common causes include insufficient tire pressure, expired engine oil, or a clogged air filter, which you can check yourself. Go to your garage and measure the tire pressure to ensure it meets the manual's standard value, typically 2.3-2.5 Bar. Then pop the hood to check if the air filter is dirty—either tap off the dust or replace it directly. Driving-wise, avoid frequent acceleration and deceleration. If these measures don't solve the issue, it could be a faulty oxygen sensor or fuel injector, which requires professional diagnostic tools to fix. Spend a little money to address it promptly and prevent further damage.