Why does the old Teana 230jk consume so much fuel?

2 Answers
DiRebecca
07/25/25 10:28am
The oldest Teana 230jk was released in 2004, making it 17 years old now, and naturally, it has become quite fuel-consuming. Equipped with a 2.3L 173-horsepower V6 engine, its fuel consumption is relatively high. Over time, neglecting maintenance can lead to severe carbon buildup in components such as spark plugs and clutch plates, which in turn increases fuel consumption. Additionally, signals from the oxygen sensor and coolant temperature sensor may become misaligned, further contributing to higher fuel consumption. Factors affecting fuel consumption: 1. Driving habits: If the driver frequently engages in aggressive driving, rapid acceleration, or sudden deceleration during operation, it will significantly impact the vehicle's fuel consumption. Statistics show that incorrect driving habits can increase fuel consumption by 5-30%. 2. Tire pressure: For models without tire pressure monitoring displays, many owners tend to overlook the importance of tire pressure. When tire pressure is either too high or too low, the vehicle's fuel consumption will rise. 3. Road conditions: If the car often travels on poor road surfaces, the engine's load increases, leading to a natural rise in fuel consumption.
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Brody
08/11/25 7:42pm
Those who've driven the old Teana 230JK know - its VQ engine may be smooth and quiet, but the technology is downright outdated by today's standards. This car uses an old electronic fuel injection system from over a decade ago, with city traffic fuel consumption spiking above 13L/100km. Its 4AT transmission shifts sluggishly, especially during hard acceleration when the RPMs skyrocket, making it particularly fuel-thirsty. Add to that aged sensors in the engine bay - like a dirty mass airflow sensor causing uncontrolled fuel injection. And let's not forget, this car weighs nearly 1.5 tons with 225 wide tires; you can literally watch the fuel gauge tremble at red lights. Though on highways it stabilizes around 8L/100km - with old cars, you've gotta drive according to their temperament.
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