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Are There Automatic Transmission Models for Heavy Trucks?

1 Answers
SanAnnie
08/26/25 5:22am

Heavy trucks do have automatic transmission models. Below are detailed introductions to heavy truck transmissions: 1. Smoothness: Trucks have more gear ratios, resulting in smaller speed differences between gears. This reduces jerking during gear shifts, making the ride smoother. Additionally, most heavy trucks use diesel engines, which operate at lower RPMs, making multiple gears more convenient for vehicle control. 2. Rationality: This ensures that the engine can stay within the economical RPM range at various driving speeds, thereby saving fuel and reducing unnecessary fuel consumption. 3. Power Stability: Most heavy trucks run on diesel and operate at lower RPMs, typically between 1,000 RPM and 2,500 RPM. Having more gear ratios enables stable power output across different road conditions.

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More Forum Discussions

What are the cities corresponding to the license plate numbers in Hebei Province?

Hebei Province license plate numbers correspond to the following cities: Ji A is Shijiazhuang, Ji B is Tangshan, Ji C is Qinhuangdao, Ji D is Handan, Ji E is Xingtai, Ji F is Baoding, Ji G is Zhangjiakou, Ji H is Chengde, Ji J is Cangzhou, Ji R is Langfang, Ji T is Hengshui. The functions of license plates are: 1. To number and register information for each vehicle; 2. To identify the region to which the vehicle belongs; 3. To trace the owner and registration information of the vehicle based on the license plate. Types of license plate numbers include: 1. White represents military and police plates; 2. Blue represents ordinary small vehicles with fewer than 7 seats; 3. Yellow represents ordinary large vehicles; 4. Black represents foreign enterprise license plates.
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What are the maintenance items for a private car at 30,000 kilometers?

Maintenance items for a car at 30,000 kilometers include changing the engine oil, oil filter, air filter, fuel filter, cleaning the throttle body, replacing the spark plugs, etc. Some 4S shops may recommend additional maintenance items, which car owners should consider based on their own judgment and actual conditions. Changing the engine oil and oil filter is a mandatory item. Due to the harsh high-temperature and high-pressure environment inside the engine, the shelf life of the engine oil is significantly shortened, and its performance greatly deteriorates. Over time, it fails to protect the engine. The air filter should be replaced every 10,000 to 15,000 kilometers, and the fuel filter should be replaced every 30,000 kilometers. Cleaning the throttle body at 30,000 kilometers is necessary, but it is not required before reaching this mileage. By this time, a significant amount of carbon deposits will have accumulated at the throttle body, causing the throttle opening to become smaller, leading to unstable idling and sluggish acceleration. If the car owner notices a decline in the vehicle's performance during this period, they should consider inspecting the throttle body and spark plugs during maintenance. At 30,000 kilometers, the spark plugs have not completely failed, but their ignition performance has significantly deteriorated, directly affecting the engine's power, performance, and fuel consumption. If the vehicle is still running smoothly, the replacement can be delayed by another 10,000 kilometers.
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How to Open the Fuel Door of a Buick Car?

The method to open the fuel door of a Buick car is: 1. The Buick fuel door consists of an inner cover and an outer cover. Locate the electronic control buttons and cable-operated levers on both sides of the driver's seat, which feature a fuel pump icon. Simply press or pull to open the outer fuel door cover. 2. The inner cover can only be accessed after opening the outer cover. The inner cover is made of rubber material; turning it to the right tightens it, while turning it to the left opens it. Taking the 2021 Buick GL8 as an example, its body dimensions are: length 5238mm, width 1878mm, height 1776mm, with a wheelbase of 3088mm and a fuel tank capacity of 66 liters. The 2021 Buick GL8 is equipped with a 2.0T turbocharged engine, delivering a maximum horsepower of 237 PS, a maximum torque of 350 Nm, and a maximum power of 174 kW, paired with a 9-speed automatic transmission.
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Where is the car tire model number located?

Car tire model numbers are located on the sidewall of the tire. In the tire specifications, the number before the slash represents the tire's section width, the number after the slash represents the aspect ratio, 'R' stands for radial tire, and the number following 'R' indicates the rim diameter. Tire model markings mostly appear as: 215/70R15. The meanings of these numbers are: 215 represents the tire section width in millimeters (mm), with general tire widths ranging from 145 to 285mm in 10mm increments. 70 is the aspect ratio, which is the ratio of the tire sidewall height to the tire section width, with 70 representing 70%. Typical tire aspect ratios range from 30% to 80%. 'R' is the abbreviation for Radial, indicating the tire has a radial structure, and 15 is the rim diameter in inches. The functions of tires are: to transmit driving force, braking force, and steering force for vehicle operation; to support vehicle loads; and to reduce and absorb vibrations and impact forces during driving. Tire maintenance methods include: regularly cleaning stones from tire treads; minimizing exposure to direct sunlight; promptly checking tire pressure; paying attention to suspension maintenance; regularly inspecting front wheel alignment; and adopting careful driving practices by choosing road surfaces carefully, avoiding objects that could puncture or damage tires, and steering clear of chemical spills that could corrode tires.
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Where is the license plate number Lu C from?

Lu C is the license plate number of Zibo City, Shandong Province. The license plate codes for various cities in Shandong Province are: Lu A for Jinan City, Lu B for Qingdao City, Lu D for Zaozhuang City, Lu E for Dongying City, Lu F for Yantai City, Lu G for Weifang City, Lu H for Jining City, Lu J for Tai'an City, Lu K for Weihai City, Lu L for Rizhao City, Lu M for Binzhou City, Lu N for Dezhou City, Lu P for Liaocheng City, Lu Q for Linyi City, Lu R for Heze City, Lu S for Laiwu City. A license plate number consists of Chinese characters, English letters, and a five-digit serial number. Its functions are: 1. To number and register information for each vehicle; 2. To identify the region to which the vehicle belongs; 3. To trace the owner and registration information of the vehicle based on the license plate.
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Is the driver's license score reset time at 0:00 or 24:00 on the same day?

Driver's license score reset time is not at 24:00 on the same day but at 0:00. The scoring cycle of a driver's license is calculated from the initial issuance date of the license. A scoring cycle starts at 0:00 on the initial issuance date each year and ends at 24:00 on the day before the initial issuance date of the following year. Here is relevant information about traffic violation point deductions: Legal provisions: According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," if a motor vehicle driver's accumulated points within a scoring cycle do not reach 12 points and all fines have been paid, the points will be cleared; otherwise, the points will be carried over to the next scoring cycle. If a driver accumulates 12 points within a scoring cycle, they must attend study sessions and take the subject one exam at the vehicle management office where the license was issued or at the location of the violation. Only after passing the exam and paying all fines can the points be cleared. For those who accumulate 12 points twice or more, or whose cumulative points exceed 24 points, in addition to taking the subject one exam, they must also take the subject three exam. Accumulating 12 points: A Class C driver's license will be temporarily suspended by the traffic management department, and the driver must attend study sessions on road traffic safety laws, regulations, and related knowledge, as well as take the exam within 15 days at a designated location. Passing the exam will clear the points and return the license; otherwise, the driver must continue studying and retaking the exam. Class A and B driver's licenses will face downgrade penalties, with the vehicle management office revoking the highest permitted driving model. The driver must complete the downgrade and license replacement procedures within 30 days.
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