What is the actual fuel consumption of the Dongfeng 580?

What are the reasons for unstable idle speed fluctuating between high and low?

The reasons for unstable idle speed fluctuating between high and low are: 1. Excessive carbon buildup in the throttle body; 2. Leakage in the intake manifold or various valves; 3. Engine misfire (cylinder not firing); 4. Fuel system malfunctions, including clogged fuel injectors, clogged fuel filter, clogged fuel pump screen, faulty fuel pressure regulator, and clogged fuel return line; 5. Ignition system failures, including faulty ignition module, incorrect spark plug gap, eroded or damaged spark plug electrodes, and excessive resistance in high-voltage wires. If a car exhibits unstable idle speed fluctuating between high and low, it should be addressed promptly; otherwise, both fuel economy and environmental performance will deteriorate.

7

4

Share

How to Check the National Emission Standard on the Vehicle License?

Methods to check the national emission standard on the vehicle license: 1. Look at the vehicle's environmental protection label, which has a clear mark on the back; 2. For new vehicles, you can check the vehicle's factory certificate or the vehicle conformity certificate; 3. You can log in to the public inquiry platform of the Motor Vehicle Environmental Protection Website, enter the vehicle's VIN number and the last 6 digits of the engine number to query the vehicle information. If the vehicle meets the National V emission standard, the implementation of the National VI standard will not affect its normal use on the road, as vehicles already sold are subject to the emission standards at the time of sale. Therefore, as long as the National V vehicle is in good condition, it can continue to be driven.

8

0

Share

What does it mean to violate the prohibition line instruction?

Violating the prohibition line instruction refers to driving against the prohibited traffic markings, which include solid yellow lines (indicating no crossing of the central divider) and yellow crosses (indicating no parking). Driving over these markings constitutes a violation. Examples include changing lanes over solid lines, making U-turns in no-U-turn zones, or turning left in no-left-turn sections—all of which are considered violations of prohibition line instructions. According to the Road Traffic Safety Law, driving past the stop line during a red light and continuing to proceed is classified as running a red light. If a vehicle crosses the stop line during a red light but stops within the stop line or intersection, it is categorized as stopping beyond the stop line at a signalized intersection (over-line stopping).

12

1

Share

How are A, B, and C class cars classified?

According to the classification standards of car grades: A-class (including A0/A00) cars refer to small cars, B-class cars refer to mid-range cars, and C-class cars are high-end cars. The classification is mainly based on parameters such as wheelbase, displacement, and weight. The further the letter sequence, the longer the wheelbase, the larger the displacement and weight, and the higher the luxury level of the car. A-class cars are divided into three categories. Among them, A00 can also be called micro cars. A00-class cars should have a wheelbase between 2 meters and 2.2 meters, with an engine displacement of less than 1 liter. For example, the Alto belongs to the A00-class car. A0-class cars have a wheelbase of 2.2 meters to 2.3 meters and a displacement of 1 liter to 1.3 liters, with the typical example being the hatchback Xiali. Generally, A-class cars have a wheelbase ranging from about 2.3 meters to 2.45 meters and a displacement of about 1.3 liters to 1.6 liters. The Jetta from FAW-Volkswagen and the POLO from Shanghai Volkswagen are considered classic models in the A-class category. B-class mid-range cars have a wheelbase of about 2.45 meters to 2.6 meters and a displacement ranging from 1.6 liters to 2.4 liters. Models such as the Audi A4, Passat, Zhonghua, and Eastar all belong to the B-class category. C-class high-end cars have a wheelbase of about 2.6 meters to 2.8 meters and an engine displacement of 2.3 liters to 3.0 liters. The main C-class car is the Audi A6. D-class classification; D-class luxury cars are mostly large in size, with spacious interiors and powerful engines. Their wheelbase is generally greater than 2.8 meters, and the displacement is mostly above 3.0 liters. Common D-class cars include the Mercedes-Benz S series, BMW 7 series, Audi A8, Rolls-Royce, and Bentley.

7

1

Share

Can Temporary License Plates Be Used on Highways?

Temporary license plates can be used on highways. A temporary license plate is a paper motor vehicle license plate that permits temporary road use of a motor vehicle, also known as a temporary driving license plate. It refers to the temporary vehicle driving permit issued by the public security vehicle management department for newly purchased vehicles before formal registration. The validity period of a temporary license plate generally does not exceed thirty days. Temporary license plates are categorized into: temporary license plates for administrative jurisdictions, temporary license plates for cross-administrative jurisdictions, temporary license plates for testing purposes, and temporary license plates for special-type motor vehicles. License plates serve as numbering and information registration for vehicles, with their primary function being to identify the vehicle's region of origin and to trace the vehicle's owner and registration details based on the license plate.

16

1

Share

Why Are Car Batteries Less Durable in Winter?

Winter car batteries are less durable for the following reasons: When the ambient temperature drops, the amount of electricity a battery can store decreases. Generally, the optimal operating temperature for a battery is 25 degrees Celsius. For every 1-degree drop in temperature, the usable capacity of the battery decreases by approximately 0.8%. Since the battery's own temperature cannot reach the optimal level, it charges more slowly. Therefore, even when fully charged in winter, the battery only reaches 90% to 95% of its summer capacity. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The commonly referred-to car battery is a lead-acid battery, which is primarily made of lead and its oxides, with a sulfuric acid solution as the electrolyte.

1

2

Share

What is the actual fuel consumption of the Dongfeng 580?

What are the reasons for unstable idle speed fluctuating between high and low?

How to Check the National Emission Standard on the Vehicle License?

What does it mean to violate the prohibition line instruction?

How are A, B, and C class cars classified?

Can Temporary License Plates Be Used on Highways?

Why Are Car Batteries Less Durable in Winter?

Is Car Film Applied on Both Inside and Outside?

Is the Beijing-Harbin Expressway from Changchun to Harbin Open?

What Are the Reasons for Difficulty in Shifting Gears in Automatic Transmission Cars?

Can Toothpaste Repair Car Scratches the Next Day?