What are the reasons for the high fuel consumption of the Buick Excelle?
2 Answers
Buick Excelle's high fuel consumption is mainly caused by: Poor fuel flow: Excessive carbon deposits lead to fuel line blockages, resulting in high fuel consumption. Brake abnormalities: Brake pads not retracting, causing the vehicle to drive in a constant braking state. Spark plug failure: Generally, spark plugs need to be replaced after 20,000 to 30,000 kilometers of driving. If you feel the vehicle's fuel consumption is too high, check if the spark plugs are igniting abnormally. Dirty air filter: Vehicle maintenance requires timely replacement of the air filter; otherwise, it may cause poor air intake, leading to increased fuel consumption.
I drove a Buick Excelle for several years, and there are quite a few common reasons for high fuel consumption. Driving habits have the biggest impact on fuel efficiency—like frequently accelerating hard or slamming on the brakes, especially in city traffic jams where the engine is under heavy load, burning fuel faster. Another issue is insufficient tire pressure; soft, underinflated tires increase rolling resistance. I make it a habit to check tire pressure before heading out, which can easily save half a liter of fuel. Older cars also contribute—mine had over 100,000 kilometers, with worn-out spark plugs and heavy carbon buildup, making the engine struggle and leading to incomplete combustion, naturally spiking fuel consumption. A dirty fuel system, like clogged fuel injectors or a dusty air filter, restricts airflow, forcing the engine to guzzle more fuel to perform. Weather and road conditions matter too—blasting the AC in summer or driving uphill frequently can bump up fuel usage. My advice: regular maintenance, checking these components, and maintaining smooth driving habits—don’t rush and drain your wallet for the sake of time.
