
The concept of 18 liters per 100 kilometers means that 18 liters of fuel are required to travel 100 kilometers. The fuel cost for this consumption depends on the local fuel price. Definition of constant-speed fuel consumption: Constant-speed fuel consumption refers to the fuel economy indicator when a vehicle is driving at a constant speed on good road conditions. Since constant-speed driving is a basic operating condition for vehicles on highways, and this type of fuel consumption is easy to measure, it is widely adopted. The fuel consumption per 100 kilometers indicated in the manuals of domestic vehicles is generally the constant-speed fuel consumption. Calculation method of fuel consumption: Fuel consumption per 100 kilometers = Volume of a certain amount of fuel (liters) ÷ Distance the vehicle can travel with that amount of fuel (kilometers) × 100. For example: If a vehicle consumes A liters of fuel to travel N kilometers, then the fuel consumption per 100 kilometers = A ÷ N × 100. Substituting specific numbers, if a vehicle consumes 4 liters of fuel to travel 50 kilometers, then the fuel consumption per 100 kilometers = 4 liters ÷ 50 kilometers × 100 = 8 liters/100 kilometers, meaning the fuel consumption is 8 liters per 100 kilometers.









I've been driving for ten years, and the most frustrating thing is encountering a fuel consumption of 18 liters per 100 kilometers—it feels like my wallet is bleeding. The old I drive mostly runs in the city, and during traffic jams, it burns fuel incredibly fast. On average, I spend over 1,500 yuan per month just on fuel, which is more than double that of regular sedans like Japanese cars, which only consume 7 or 8 liters. It's slightly better on highways, but daily commuting consumes even more fuel, especially with aggressive driving habits like rapid acceleration and braking. The main reasons are the heavy weight, large displacement, or poor engine maintenance. After replacing the spark plugs and air filter, the consumption dropped a bit. I recommend regularly checking the vehicle's condition and not being careless—otherwise, the long-term expenses can become unbearable, and it also harms the environment with excessive emissions.

From an economic perspective, 18 liters per 100 kilometers is terrifying. I've calculated - at 8 yuan per liter, every 100 kilometers costs 144 yuan. A long 1000km trip would cost over a thousand yuan just in fuel. Regular family cars with better fuel efficiency only consume 5-6 liters, meaning monthly fuel cost differences could amount to several hundred yuan more. As a commuter driving 50km daily, high fuel consumption eats up nearly half my salary, becoming even more burdensome when gas prices rise. The main reasons are aging vehicle models or inherently fuel-thirsty large SUVs. Suggestions include adopting smoother driving techniques or reducing cargo weight to lower consumption. It's worth seriously considering switching to a more fuel-efficient car to save both money and hassle.

From a technical perspective, a fuel consumption of 18L/100km is relatively high. In my experience with cars, large-displacement engines like V6 or those with turbo lag often exhibit this behavior, especially in city traffic with frequent stops and starts, which consumes more fuel. Insufficient tire pressure, a dirty air filter, or a faulty oxygen sensor can further degrade performance. Optimizing the vehicle's condition can help reduce consumption. In comparison, efficient engines in ordinary sedans typically consume only 7-8L. Such high consumption indicates low vehicle efficiency and the need for to avoid long-term damage to the engine's lifespan.

Compared to regular cars, 18 liters per 100 kilometers is simply at the level of a gas guzzler. My neighbor's pickup truck has this exact fuel consumption data. When I drove it, the consumption was several times higher than that of a Corolla hybrid, which only uses 4-5 liters. The difference becomes even more pronounced in traffic jams. It's normal for SUVs or older cars to have higher fuel consumption, and an aggressive driving style just wastes more fuel, costing more money without being cost-effective. It's advisable to choose an energy-efficient model or change driving habits to a smoother style, saving money and reducing emissions for a more eco-friendly approach.

I have some insights on dealing with the issue of 18 liters per 100 kilometers. It might be caused by aggressive driving habits or poor vehicle condition leading to fuel wastage. I suggest first checking if the tire pressure is too low, and performing regular like cleaning carbon deposits and changing engine oil to reduce consumption. Try using apps to track fuel consumption and avoid peak hours. Switching to more efficient tires can also save some fuel. If the car is too old, consider upgrading to a low-displacement vehicle. Long-term high fuel consumption not only burns money but also pollutes. Adjusting driving habits and vehicle condition is key to saving costs.


