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What is the simplest formula for calculating fuel consumption?

2 Answers

Nicole

07/24/25 11:09pm

The relatively simple formula for calculating fuel consumption is: fuel consumption per 100 kilometers equals the volume of fuel consumed (in liters) divided by the distance the car can travel on that amount of fuel (in kilometers) multiplied by 100. For example, if a car consumes 4 liters of fuel to travel 50 kilometers, its fuel consumption per 100 kilometers would be calculated as 8 liters, commonly referred to as "8 liters per 100 km". Factors affecting fuel consumption: The fuel consumption per 100 kilometers of a car is not fixed. Different road conditions, load capacity, temperature, and whether the air conditioning is on all affect fuel consumption. Things to note: When refueling in urban areas, it is not advisable to fill the tank completely because city driving often involves frequent stops and starts. A full tank can increase the engine's load, resulting in weaker acceleration and higher fuel consumption.

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VonMargaret

08/10/25 3:16pm

I've been driving for over 20 years, and the simplest way to calculate fuel consumption is kilometers divided by fuel amount. The basic method is to fill up until the pump clicks off and note the odometer reading, then drive a few hundred kilometers and refill to full while recording the new fuel amount. The distance difference divided by fuel amount gives per-kilometer consumption, multiplied by 100 converts to the standard L/100km unit. For example, driving 400km using 38 liters gives ~9.5L/100km. Many factors affect this - steady highway driving saves fuel while city traffic increases consumption. Underinflated tires create more resistance, and regular maintenance helps reduce fuel use. Recording multiple trips and averaging makes calculations more accurate and practical.

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2021 New Policy on Vehicle Purchase Tax for Passenger Cars?

Here is the relevant information on the 2021 new policy for passenger car purchase tax: According to the "Announcement by the Ministry of Finance, State Taxation Administration, and Ministry of Industry and Information Technology on Policies Regarding Exemption of Vehicle Purchase Tax for New Energy Vehicles" (Ministry of Finance Announcement No. 21 of 2020), the following new measures can be summarized: From January 1, 2021, to December 31, 2022, the purchase of new energy vehicles will be exempt from vehicle purchase tax. New energy vehicles exempt from vehicle purchase tax include pure electric vehicles, plug-in hybrid (including range-extended) vehicles, and fuel cell vehicles. The exemption of vehicle purchase tax for new energy vehicles will be managed through the "Catalog of New Energy Vehicle Models Exempt from Vehicle Purchase Tax" (hereinafter referred to as the "Catalog"). The purchase date for tax-exempt models listed in the Catalog is the date indicated on the unified sales invoice (or valid certificate) of the motor vehicle. For new energy vehicles already included in the Catalog, relevant automakers and new energy vehicle dealers need to complete the necessary tax-exempt identification procedures to qualify for vehicle purchase tax exemption. Automakers must ensure that the vehicle electronic information matches the vehicle product. Any loss of vehicle purchase tax revenue due to the provision of false information or materials will be handled in accordance with the "Law of the People's Republic of China on the Administration of Tax Collection" and its implementing regulations. Staff involved in the management of the Catalog, review of tax-exempt identification, and processing of tax-exempt procedures who engage in illegal or disciplinary actions such as abuse of power, dereliction of duty, or malpractice will be held accountable under relevant national laws, and cases suspected of criminal activity will be transferred to judicial authorities. This announcement came into effect on January 1, 2021. The exemption policy for new energy vehicles listed in the Catalog before December 31, 2020, remains valid.

What is the New Energy Vehicle Purchase Tax Exemption Policy?

To promote automobile consumption, the executive meeting of the State Council has decided to extend the new energy vehicle purchase subsidy and the exemption of vehicle purchase tax policy, which was due to expire at the end of the year, for another 2 years. The specific details are as follows: 1. Purchase tax exemption: The decision to exempt hybrid vehicles from purchase tax was made by Premier Li Keqiang during an executive meeting of the State Council, announcing that pure electric vehicles, as well as eligible plug-in hybrid and fuel cell vehicles that have obtained sales permits in China, will be exempt from vehicle purchase tax. 2. Subsidy benefits: Therefore, plug-in hybrid vehicles can still enjoy the policies of purchase tax exemption, green license plates, and government subsidies.

Do motorcycles require purchase tax?

Motorcycles do not require purchase tax, but the following points should be noted: 1. Displacement: Motorcycles with a displacement of 150ml or below are exempt from vehicle purchase tax. 2. Vehicle origin: Individuals and entities purchasing cars, motorcycles with a displacement exceeding 150ml, trams, or trailers within the territory of the People's Republic of China are taxpayers for vehicle purchase tax. Relevant information about purchase tax is as follows: 1. Purchase tax: It is a tax levied by tax authorities on the purchase of relevant properties and assets within the scope of the purchase tax system, such as vehicle purchase tax. 2. Calculation method: Vehicle purchase tax payable = taxable price × 10% (passenger vehicles with a displacement of 1.6 liters or below are subject to a reduced rate of 7.5%).

How to Solve High Fuel Consumption in Cerato?

Cerato high fuel consumption has the following solutions: 1. When there is excessive engine carbon buildup: Drive the car to a 4S shop and let professional technicians help clean the carbon deposits inside the engine, or frequently drive on highways. When the engine's carbon deposits are reduced, it can maintain better power output, significantly lowering fuel consumption. 2. When the oxygen sensor is damaged: It may cause an imbalance in the engine's air-fuel ratio, leading to a sudden increase in fuel consumption. Simply replace the faulty oxygen sensor. 3. Clogged filters: Components such as the air filter, fuel filter, and oil filter inside the car may become clogged, causing incomplete combustion of engine fuel and increasing engine carbon deposits. Regularly clean or replace the filters.

What does it mean when the TPMS indicator light comes on in the car?

TPMS light is the tire pressure fault warning light, which indicates that the air pressure in one of the tires may be too low. The following are the functions of the tire pressure monitoring system: 1. Prevent accidents: The tire pressure monitoring system is a type of active safety equipment. It can provide timely warnings when there are signs of danger in the tires, reminding the driver to take appropriate measures to avoid serious accidents. 2. Extend the service life of tires: The tire pressure monitoring system ensures that the tires always operate within the specified pressure and temperature range, thereby reducing tire damage and extending their service life. Data shows that driving with insufficient tire pressure, when the tire pressure is 10% lower than the normal value, the tire life is reduced by 15%.

What is the fuel consumption of the Magotan 1.4t?

The combined fuel consumption of the Magotan 1.4t is 5.8L/100km. There are currently 2 models of the Magotan 1.4t available for sale, the Comfort and the Leading, with a combined fuel consumption of 6.3L/100km. The above figures are the NEDC combined fuel consumption, which is the data measured under the NEDC test procedure for combined driving conditions. The actual fuel consumption is higher than this value, ranging from 9.5-10.0L/100km. When driving, the following 5 tips can help reduce fuel consumption: During the starting process, the vehicle should start in a low gear, gently press the accelerator, and gradually increase speed. Avoid suddenly stepping hard on the accelerator, as this will multiply fuel consumption. Light acceleration, light braking, early braking: When driving, gently press the accelerator to avoid sudden increases in engine speed and prevent the car from shaking during driving, thus making the car more fuel-efficient. By anticipating road conditions and adopting slow and uniform acceleration or braking, fuel economy can be increased by up to 20%. Maintain proper tire pressure: Keep the tire pressure at the level recommended by the manufacturer. For every 2 PSI below the recommended value (equivalent to about 0.2 in metric units relative to the standard pressure of 2.4), fuel consumption increases by 1%. Regular maintenance or vehicle checks: Timely oil changes can reduce carbon deposits (carbon deposits can cause poor ignition, sluggish acceleration, increased fuel consumption, and in severe cases, even cylinder misfires); regularly check and replace the air filter when dirty, and clean or replace the fuel injectors, spark plugs, and throttle body at the recommended mileage. Close the windows while driving. Driving with the windows open increases wind resistance. The greater the wind resistance, the more resistance the car encounters, requiring more power and thus increasing fuel consumption.

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