What Causes High Fuel Consumption?
2 Answers
Car high fuel consumption reasons are as follows: 1. After cleaning the throttle, no matching with the engine control unit was performed or the matching was unsuccessful, leading to increasingly higher fuel consumption. 2. Failure in the engine electronic control system, resulting in excessively rich air-fuel mixture and progressively higher fuel consumption. 3. Damage to engine ignition coils or spark plugs, fuel injector leaks, etc., causing increased fuel consumption. 4. Engine cooling system failure, leading to excessively low engine temperature and continuous warm-up state. 5. Excessive engine carbon deposits, resulting in incomplete combustion. 6. Fuel tank ventilation system failure, causing fuel vapor leaks.
I've been driving for over 20 years, but recently my fuel consumption has suddenly increased significantly, which is really frustrating. It turns out my driving habits were poor—I frequently accelerated and braked abruptly, especially during city traffic jams, which really guzzles gas. My car maintenance was also inadequate: the tire pressure was pitifully low, increasing rolling resistance and thus fuel consumption; the air filter was clogged with dust, restricting airflow and causing incomplete fuel combustion in the engine. I also realized I often carried heavy items in the trunk—tools and miscellaneous items piled up—making the car haul extra weight and consume more fuel. Suggestions: regularly check tire pressure (typically 2.3-2.5 for front tires, slightly higher for rear tires); maintain a steady speed while driving and avoid frequent lane changes; periodically clean the air filter and service the engine. These small adjustments can save a lot on fuel costs.
