What are the reasons for the increasing fuel consumption of the JAC Refine S3?
2 Answers
The reasons for the increasing fuel consumption of the JAC Refine S3 include the following situations: Tire pressure and tire issues: Insufficient or low tire pressure increases friction between the tires and the ground, leading to greater resistance and higher fuel consumption. Severe tire wear can cause frequent slipping, which also increases fuel consumption. Poor fuel quality: Pay attention to fuel quality and regularly clean carbon deposits. Poor-quality gasoline can lead to increased carbon deposits, which roughen the intake pipe walls, affecting the intake efficiency and mixture quality, causing a sharp rise in fuel consumption. Oxygen sensor malfunction: Regularly check the oxygen sensor. After prolonged use, the computer of the electronic fuel injection system may fail to receive information about the oxygen concentration in the exhaust pipe, often resulting in a higher concentration of the air-fuel mixture in the engine, which also increases fuel consumption.
I've been driving my JAC Refine S3 for several years, and the sudden increase in fuel consumption is indeed frustrating. The most common causes are aging spark plugs or carbon buildup, forcing the engine to consume more fuel to compensate. Spark plugs typically need replacement every few tens of thousands of kilometers—if they're worn or heavily carbon-fouled, ignition becomes unstable, naturally driving up fuel consumption. Another major issue is a severely clogged air filter; when dirty, it restricts airflow to the engine, making combustion less efficient. A faulty fuel pump can also cause unstable fuel supply. These mechanical components all require thorough inspection. I recommend visiting a reliable auto repair shop to check the ignition system and fuel injectors, and consider a fuel system cleaning—often, this restores normal performance. Don’t forget to check tire pressure, as underinflated tires increase rolling resistance, quietly raising fuel consumption. In short, avoid guesswork—start with basic maintenance and see.
