Why is the Fiat's fuel consumption so high?

2 Answers
EthanLynn
07/29/25 8:09am
Here are the specific reasons for the high fuel consumption of Fiat vehicles: 1. Affected by temperature: causing fluctuations in fuel consumption. In winter, when temperatures are low, fuel consumption tends to increase. 2. Long-term lack of vehicle maintenance: Dirty engine oil and air filters can also lead to increased fuel consumption. Dirty engine oil results in poor lubrication, increasing resistance in the engine's moving parts, which requires more energy to overcome, thus raising fuel consumption. 3. Excessive carbon buildup in the vehicle: Carbon deposits commonly accumulate in the throttle body, fuel injectors, intake manifold, and piston tops. Excessive carbon buildup in any of these areas can lead to incomplete combustion, thereby increasing fuel consumption.
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JordanLynn
08/12/25 11:21am
I've been driving a Fiat for five years and found that fuel consumption is highly related to driving habits. Previously, I often accelerated hard and braked abruptly, but after learning to anticipate road conditions and maintain a steady speed, my fuel consumption dropped by 1.5 liters. Turning on the heater immediately after a cold start also consumes extra fuel; I recommend opening the windows for ventilation for a few minutes before closing them and turning on the AC. Insufficient tire pressure can cause fuel consumption to surge by about 0.8 liters, so I check my tire pressure monthly. Clearing out unnecessary items from the car also helped—there's no need to carry heavy spare tires and toolkits around the city every day. Now, I record the mileage every time I refuel, and this habit helps me promptly notice any changes in fuel consumption.
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