How to Tell if a Car is Fuel-Consuming?

[Nettie]

Methods to determine if a car is fuel-consuming are as follows: 1. Displacement: Many consumers are aware that vehicles with larger displacements generally have more horsepower, which inevitably leads to higher fuel consumption. 2. Vehicle Weight: Heavier vehicles require the engine to output more power to drive them, naturally resulting in higher fuel consumption. Therefore, lighter vehicles typically have lower fuel consumption. 3. Drag Coefficient: Vehicles encounter some degree of wind resistance while driving, especially at high speeds. Higher wind resistance leads to greater fuel consumption. Thus, vehicles with lower drag coefficients naturally consume less fuel. Information on drag coefficients can be found online before purchasing or by consulting sales advisors on-site. 4. Tire Width: Generally, the diameter of the tires has little impact on fuel consumption, but wider tires increase fuel consumption. This is because wider tires have a larger contact area with the ground, increasing frictional resistance during driving and consequently raising fuel consumption.

[StEmilio]

I remember when I used to drive an old car, the fuel consumption suddenly increased, mainly judged by daily refueling records. After each full tank, I would record the mileage and the amount of fuel added in a mobile app or a small notebook, and then calculate the fuel consumption per 100 kilometers after about a week of driving. Normally, it should be around 8-10 liters. If it spikes to over 12 liters, it feels off. You also need to consider driving habits, such as frequent hard acceleration or constant traffic jams, which can also increase fuel consumption. Additionally, regularly checking tire pressure is crucial. Low tire pressure increases friction, leading to higher fuel consumption. If the engine sounds louder than before or lacks power during acceleration, it's a sign of increased fuel consumption. It's recommended to calculate it yourself every month to detect issues early and avoid wasting money and damaging the engine.

[MacAyla]

As the person in charge of the family car, you can tell whether the fuel consumption is high just by looking at the expenses. Last month, I noticed that the frequency of refueling increased compared to before. Previously, I could drive 500 kilometers before needing to refuel, but now the fuel gauge is almost empty after just 300 kilometers. This clearly indicates higher fuel consumption. I also tried calculating the fuel consumption per 100 kilometers by using the gas station receipts to record the mileage difference and dividing it by the fuel amount. The ideal value can be referenced from the vehicle manual—if it exceeds by 10%, you should pay attention. Additionally, carrying heavy loads in the car or using the air conditioning too much can easily increase fuel consumption; tire wear affects rolling resistance, so regular maintenance can help prevent this. The most direct way is to check the fuel consumption warning light or dashboard data—if it's abnormal, get it repaired promptly to avoid turning it into a bigger issue.

[IkerRose]

I like to simply assess fuel consumption when driving. First, check the fuel gauge for the remaining mileage. If the mileage drops quickly on the same route, it's a sign of high fuel consumption. For example, record the starting point after a full tank, then compare the actual fuel usage after the trip. A normal vehicle consumes 7-10 liters per 100 km, and anything higher indicates an issue. If there's smoke from the engine or sluggish acceleration, it might be due to incomplete combustion wasting fuel. Older cars especially need attention to spark plugs and air filter conditions. I inspect them myself every few thousand kilometers to avoid unnecessary expenses.