Does idling the car with the AC on consume more fuel?

1 Answers
BeauMarie
07/29/25 5:00pm
Idling the car with the AC on does consume more fuel. Here are specific details about other fuel consumption factors in cars: Engine Technology: Many people believe that larger displacement engines consume more fuel, and this is indeed true, which is why there is strong encouragement for the consumption of smaller displacement vehicles. However, when there is a significant gap in engine technology, this pattern can easily be broken. For example, Mazda's S-VT variable valve system, VIS variable intake manifold system, VTCS variable vortex control system, and VAD variable intake duct system in the 1.5L model reduce fuel consumption to 6.35L/100km, making it more fuel-efficient than many 1.0L models. Therefore, the technological level of the engine, to some extent, has a more significant impact on fuel consumption than displacement. Transmission Type: The impact of the transmission on fuel consumption is obvious, but the extent of this impact varies for different models. For example, the Hyundai Elantra, a family sedan focused on fuel economy, has a fuel consumption of 6.7L/100km for the 1.6L manual version, while the Toyota Corolla manual version consumes 7.3L/100km and the automatic version 7.4L/100km, showing a smaller difference. This is because their transmission tuning prioritizes fuel economy, advancing the shift timing and sacrificing some power performance to achieve better fuel efficiency.
Was this review help?
9
1
Share
More Forum Discussions

What materials should be brought for the first car maintenance?

Items required for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice. Bring these to the designated first maintenance facility for the vehicle's initial service. Important note: Make an appointment with the 4S store in advance. The first maintenance refers to the initial service after a new car has been driven, with specific timing varying by vehicle, typically after driving 1,000 to 3,000 kilometers. It is essential to attend the first maintenance promptly, neither in advance nor delayed. The completion of the first maintenance signifies the end of the vehicle's break-in period, allowing it to be driven at standard loads and normal speeds as required. The timing for the first maintenance is calculated from the date of vehicle pickup. There are two indicator values for the first maintenance: mileage and time. Whichever comes first serves as the standard. First maintenance tasks include: changing the engine oil and oil filter, cleaning the air filter, checking various fluid levels for normalcy, inspecting the generator belt and wiper blades for damage, checking tire pressure for normal levels, and examining tires for damage or bulges. Estimated time required: Approximately 2 hours to complete all tasks. The most crucial aspect of the first maintenance for a new car is changing the engine oil and oil filter. When changing the oil, the oil filter must also be replaced. The choice of oil must refer to the "Vehicle User Maintenance Manual," as different vehicle models specify different oil grades. Maintenance precautions: Do not rinse the interior of the car with water: Many people clean their cars during holidays, washing the body with water and wiping it with a cloth. It is important to note that the interior of the car should not be directly washed with water. If the floor mats are dirty, use a vacuum cleaner or take them out, scrub them with a brush and detergent, dry them, and then put them back. There are many drainage holes under the rubber mats on the floor of the driver's compartment. Water that enters will not dry naturally but will flow through these holes to areas like the transmission, causing corrosion. The best practice is to clean with a vacuum and then wipe with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: If the car's antifreeze is low, it is recommended to drain the existing antifreeze and add the same brand from the start. Different brands of antifreeze have varying chemical properties. The corrosion inhibitors in one brand may corrode those in another. Do not mix different brands of antifreeze to avoid unnecessary issues. Do not lubricate tire bolts and nuts: When bolts on a moving car rust, it is common to oil them to restore functionality. However, some people apply lubricant to the bolts and nuts to prevent rust, which can pose safety risks. At high speeds, bolts and nuts may loosen or even fall off, leading to driving hazards. Do not press the accelerator when starting an EFI (Electronic Fuel Injection) car: The starter of an EFI car differs from that of a conventional car. Its fuel injection control system can automatically adjust the fuel supply based on the starter's temperature and operating conditions, ensuring a smooth start.
11
4
Share

How to Adjust Vehicle Pulling to the Right?

Vehicle pulling to the right can be adjusted through wheel alignment. During driving, collisions are inevitable, and after the tires are impacted, the wheel alignment may deviate slightly. The supporting components of the car's chassis may also undergo minor deformations due to bumps or vibrations. Wheel alignment is an effective method to address vehicle pulling. Wheel alignment is based on the four-wheel parameters of the vehicle, ensuring optimal driving performance and reliability through adjustments. The installation of the steering wheels, steering knuckles, and front axle in a car has specific relative positions. This installation with defined relative positions is called steering wheel alignment, also known as front wheel alignment.
5
3
Share

What is the real fuel consumption of the 10th-generation Accord 260?

The real fuel consumption of the 10th-generation Accord 260 is 6.3L/100km, which translates to 0.063L per kilometer. Below are the detailed specifications of the 10th-generation Accord 260: 1. Exterior: The newly designed rear styling harmonizes better with the front, making the overall vehicle appearance more striking. 2. Interior: Features an LED high-mounted stop lamp commonly found in luxury models and elegant triangular combination taillights. 3. Configuration: Equipped with a 1.5T direct-injection VTEC turbocharged engine, delivering a maximum power of 143/5500 kW/rpm.
5
3
Share

Is 30 km/h Fast for a Motorcycle?

Motorcycle speed of 30 km/h is not considered fast. Safety checks are essential before riding a motorcycle: Before starting to move, it is necessary to confirm the surrounding environment, nearby vehicles, pedestrians, and other factors to ensure there are no safety hazards before proceeding. Motorcycles should slow down when passing through intersections: Whether at large signalized intersections or small street corners, it is advisable to reduce speed or even stop if necessary to observe whether there are any vehicles or pedestrians suddenly emerging from the intersection. Only after confirming there are no potential dangers should you proceed slowly. This approach will significantly reduce the chances of encountering hazards.
16
5
Share

Is a Dual Clutch Considered an Automatic Transmission?

Dual clutch is considered an automatic transmission. Dual clutch refers to the dual-clutch transmission, which has two sets of clutches working simultaneously—one set manages the odd-numbered gears, while the other manages the even-numbered gears. This design avoids the power interruption issue during gear shifts in traditional manual transmissions, achieving the goal of rapid shifting. Dual-clutch transmissions differ from conventional automatic transmission systems; they are based on manual transmissions yet belong to the category of automatic transmissions, serving as a transmission mechanism that can both transmit and cut off power. The primary function of a dual-clutch is to ensure smooth vehicle starts, reduce the impact load on transmission gears during shifting, and prevent the drivetrain from overloading.
7
0
Share

What are the differences between the new Mercedes-Benz E200 and E300?

The differences between the new Mercedes-Benz E200 and E300 lie in their powertrains: the E200 is equipped with a four-cylinder turbocharged engine, while the E300 uses a six-cylinder naturally aspirated engine. The Mercedes-Benz E200 is a four-door, five-seater mid-size sedan with dimensions of 4925mm in length, 1860mm in width, and 1470mm in height, and a wheelbase of 2939mm. It features a rear-wheel-drive layout. In terms of exterior design, the car sports a dynamic front bumper with black diamond grille air intakes, dual chrome side accents, and visible dual exhaust tailpipe trims, presenting a stylish and sporty appearance.
6
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.