What Causes High Fuel Consumption?

1 Answers
DeQuinn
07/30/25 1:16am
Here are the specific reasons for high fuel consumption in vehicles: 1. Affected by temperature: Temperature can cause fluctuations in fuel consumption. In winter, when temperatures are low, fuel consumption tends to increase. 2. Lack of regular vehicle maintenance: Dirty engine oil and air filters can also lead to increased fuel consumption. Dirty oil causes poor lubrication, increasing resistance in the engine's moving parts, which requires more energy to overcome, thus raising fuel consumption. 3. Insufficient tire pressure: Low tire pressure increases the contact area between the tires and the ground, leading to greater friction and driving resistance, which results in higher fuel consumption. 4. Excessive carbon buildup: Carbon deposits commonly accumulate in the throttle body, fuel injectors, intake manifold, and piston tops. Excessive carbon buildup in any of these areas can cause incomplete combustion, leading to increased fuel consumption.
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