How much does using car air conditioning in summer increase fuel consumption?

1 Answers
VonAlessandra
07/28/25 2:54pm
Under normal circumstances, the car air conditioning system consumes about 20% of the engine's power. This means for a vehicle with an average fuel consumption of 10 liters per 100 kilometers, using air conditioning in summer would increase fuel consumption by approximately 2 liters. The exact value can be calculated based on the specific vehicle's engine fuel consumption. Here are some precautions for using car air conditioning: 1. Large temperature differences may cause colds: The optimal temperature inside the car should be about 5 degrees Celsius lower than the outside temperature. For example, if the outside temperature is 35 degrees, the air conditioning should ideally be set to around 30 degrees. Even if set to 18 or 20 degrees, the actual cooling capacity of the air conditioning may not reach that level. Moreover, significant temperature differences can cause discomfort to passengers due to sudden changes between hot and cold, potentially leading to colds or fever. 2. Alternate between recirculation and fresh air modes: Some drivers use the recirculation mode for extended periods to enhance cooling or heating efficiency. In this mode, the cabin becomes a sealed space without natural air exchange with the outside, maximizing the air conditioning's effect. However, prolonged use is not advisable. It's essential to switch between recirculation and fresh air modes to prevent dizziness or chest tightness among passengers, which could lead to dangerous situations.
Was this review help?
18
3
Share
More Forum Discussions

What is the tire model and size of the Chery E3?

Chery E3 comes standard with Giti Comfort228 series tires across all models, with the model size being 185/60R15. Below is a detailed introduction to Giti tires: 1. In the global market, Giti adopts a multi-brand strategy, owning brands such as Giti, Great Wall, Roadking, Yinlun, Lanvigator, GT Radial, Durun, and Hualin. It caters to different market segments by offering a comprehensive range of high-quality products to meet the needs of various vehicle types, including trucks, buses, construction machinery, agricultural machinery, sedans, SUVs, off-road vehicles, racing cars, light trucks, and light buses. 2. In the passenger car tire market, Giti's series products for driving control, comfort, and off-road applications stand out for their superior performance. For the freight market, Giti provides tire solutions to global transportation companies in the following countries, effectively reducing overall operational costs.
12
1
Share

Manual Transmission Braking: Brake First or Clutch First?

Manual transmission braking requires different measures depending on the situation. Here is a detailed introduction to manual transmission braking: Introduction: If the vehicle speed is too high when braking, it is recommended to press the brake first and then the clutch. At high speeds, braking can effectively stop the car. At lower speeds, pressing the clutch can generally bring the vehicle to a halt. If the speed is very low, abruptly pressing the brake may cause the vehicle to stall, which can cause significant damage to the car. Precautions: Whether to press the brake first or the clutch first in manual transmission braking is a nuanced skill that depends on the driving speed. Braking without considering the speed can cause significant damage to the vehicle, increase the burden on the braking system, and even lead to accidents. Extra caution is required while driving.
17
2
Share

Can Modified Quad Exhaust Tips Pass Annual Inspection?

Modified quad exhaust tips cannot pass annual inspection and are also illegal. Modifying car exhaust tips is considered part of altering the vehicle's powertrain system. According to traffic regulations, any modifications involving the powertrain system are prohibited, making exhaust tip modifications unlawful. Operations such as changing from single exit to dual exit or converting dual exit to center exhaust are not permitted. Most importantly, modifying the exhaust system may lead to excessive emission pollutants. Legal regulations impose restrictions on vehicle modifications: The vehicle model, engine model, and chassis number cannot be altered, and the body structure must not be compromised. If changing the vehicle color, replacing the engine, body, or chassis, the vehicle must be inspected. Replacement of the engine, body, or chassis requires submission of a qualified motor vehicle safety technical inspection certificate. Decals must not cover more than 30% of the total body area; exceeding this limit requires approval from relevant authorities. The vehicle's appearance must not be significantly altered and should remain largely consistent with the photo on the vehicle registration certificate.
3
3
Share

Is Castrol Magnetec Fully Synthetic?

Castrol Magnetec is fully synthetic. Below are the usage instructions and product features of Castrol Magnetec: Usage Instructions for Castrol Magnetec: Lubricating oil products have very low toxicity. Occasional short-term contact will not cause significant harm. Long-term and frequent contact with the human body, without effective protective measures, may cause mild to moderate irritation to the skin and eyes, potentially leading to skin discomfort such as degreasing, dryness, and dermatitis. In severe cases, it may even cause skin cancer. Acute inhalation may result in fatigue, dizziness, headache, and nausea, and in severe cases, it can lead to oil pneumonia. Product Features: Castrol Magnetec synthetic engine oil addresses the fact that 75% of wear occurs within the first ten minutes of starting and warming up the engine. Its unique intelligent molecular formula instantly adheres to the internal surfaces of the engine upon startup, forming a special protective oil film.
8
4
Share

What is the principle of disc brakes?

Disc brakes work by forcing hydraulic fluid into the inner and outer wheel cylinders during braking. The pistons, under hydraulic pressure, press the two brake pads against the brake disc, generating frictional torque to achieve braking. The advantages are as follows: Good thermal stability: Due to the relatively small size of the brake friction pads, their working surface area is only 12% to 6% of the brake disc area, resulting in better heat dissipation. Good water stability: Because the unit pressure of the brake pads on the disc is high, water is easily squeezed out. Additionally, water is easily thrown off under centrifugal force, and the wiping action of the pads on the disc helps. Therefore, after exposure to water, normal braking performance can be restored with just one or two brake applications. In contrast, drum brakes require more than ten brake applications to restore normal braking performance.
19
5
Share

How long after failing five times can you retake the test?

There is no time limit for reapplying and retaking the test after failing the driving test five times. Here is a detailed introduction to the relevant information about retaking the test after failing five times: Introduction: After failing the driving test five times, the test qualification becomes invalid, and you need to reapply and start from the first subject. However, there is no specific time interval for this. You can reapply as soon as your information is refreshed. Notes: According to Article 37 of the "Regulations on the Application and Use of Motor Vehicle Driving Licenses" (Ministry of Public Security Order No. 123), during the validity period of the driving skill test permit, the number of scheduled tests for Subject 2 and Subject 3 (road driving skills) shall not exceed five. If the fifth scheduled test is still failed, the results of other subjects that have passed will be invalidated.
3
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.