What are the new car modification regulations in Tianjin?

What is the normal coolant temperature for an engine?

Engine coolant should normally maintain a temperature around 90℃. Both excessively high and low temperatures can cause damage to the vehicle. Lower temperatures indicate stronger cooling performance, but it's important to understand that coolant isn't better when colder. Excessively low temperatures mean greater heat loss from combustion through cooling, and lower operating temperatures result in higher fluid viscosity. Increased viscosity leads to greater resistance in moving parts, reducing power output. Here is relevant information: 1. The primary function of engine coolant is to protect the engine and ensure its proper operation. It circulates within the engine radiator, providing anti-freeze, anti-boil, anti-rust, and anti-corrosion effects. Most coolants are red or green in color to help identify leaks or distinguish them from other engine fluids, preventing confusion. 2. Engine coolant should be replaced based on mileage or time intervals, as it's difficult to visually determine its degradation. If the coolant remains unchanged but its anti-corrosion properties deteriorate, components like the radiator, pipes, and hoses may be damaged. 3. When replacing coolant, measure its freezing point, prevent leaks, and avoid hot coolant from spraying and causing injury. Ensure complete drainage of the original coolant (from both the radiator and engine block), add the correct amount, and avoid leaving any residual leakage on vehicle components. After completing the procedure, check for any leaks.

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Is a Tiptronic Transmission the Same as an AT Transmission?

Tiptronic transmission is not the same as an AT transmission. The following are the differences between a Tiptronic transmission and an AT transmission: 1. Different meanings: A Tiptronic transmission is a transmission device that combines manual and automatic shifting functions. An AT transmission refers to a hydraulic automatic transmission, which is one of the four common types of automatic transmissions in cars today. The other three are: Continuously Variable Transmission (CVT), Automated Manual Transmission (AMT), and Dual-Clutch Transmission (DCT). 2. Different structures: A Tiptronic transmission mainly consists of a standard gearbox (similar to a manual transmission), an electronically controlled clutch, an automatic shift control mechanism, and an electronic control unit. A hydraulic automatic transmission achieves automatic shifting through hydraulic transmission and planetary gear combinations. It generally consists of a torque converter, planetary gear mechanism, shift actuators, shift control system, and shift control mechanism.

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What is the speed limit on the Shenji Expressway?

In the Shenyang section, the speed limit is 120 km/h, while in the Jilin section, it is 100 km/h. Maximum speed: Expressways should indicate the driving speed of each lane. The maximum speed must not exceed 120 km/h, and the minimum speed must not be lower than 60 km/h. On expressways, the maximum speed for small passenger vehicles must not exceed 120 km/h, for other motor vehicles it must not exceed 100 km/h, and for motorcycles, it must not exceed 80 km/h. Minimum speed: According to the "Regulations for the Implementation of the Road Traffic Safety Law," if there are two lanes in the same direction, the minimum speed for the left lane is 100 km/h; if there are three or more lanes in the same direction, the minimum speed for the leftmost lane is 110 km/h, and for the middle lane, it is 90 km/h. If the speed limit indicated by road signs conflicts with the above lane speed regulations, drivers should follow the speed limit indicated by the road signs.

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What is the coverage of water damage insurance for vehicles?

Regarding the compensation for water damage insurance, the coverage varies among different insurance companies because they use different auto insurance clauses. Currently, there are three main types of auto insurance clauses in use in China: A, B, and C. Under clauses A and C, if a vehicle is driven on waterlogged roads, the resulting damage can be compensated regardless of whether the engine stalls or is restarted. However, clause B stipulates that damage caused by flooding or driving through water, including engine damage due to restarting, will not be compensated. Other important notes: For vehicle water damage insurance, almost all insurance companies set an absolute deductible rate of 20%. This means that regardless of whether the policyholder has purchased a zero-deductible add-on, the compensation for water damage insurance will be discounted by 20%. Water damage insurance (referred to by some insurers as engine-specific insurance) is a derivative coverage outside of standard auto damage insurance. This is because standard auto damage insurance typically excludes coverage for engine water damage, making water damage insurance an additional coverage specifically designed for engine protection. After purchasing water damage insurance, the insured vehicle can receive compensation for engine damage caused by driving through waterlogged roads or being submerged in water.

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What are the consequences of turning on the car air conditioning without starting the engine?

Turning on the car air conditioning without starting the engine can result in the compressor not working, battery depletion, and automatic power-off after engine shutdown. Compressor not working: The air blown by the air conditioning is just natural air from the blower, because the air conditioning compressor is driven by the engine's power. When the car is off, the compressor naturally stops working. Battery depletion: The natural air blown by the blower is powered by the car battery. Eventually, the blower may consume too much power from the battery, potentially leading to long-term battery depletion. Automatic power-off after engine shutdown: Cars have interlock mechanisms that automatically cut off most auxiliary circuits after the engine is shut down, including the air conditioning and blower. Precautions: Leaving the air conditioning on for a long time without starting the engine can drain the car battery. In mild cases, the car may not start, and in severe cases, it can cause the battery to remain in a depleted state for a long time. This applies only to traditional fuel-powered cars; new energy vehicles do not experience this issue. Not turning off the air conditioning after shutting down the car can have a significant impact on the vehicle.

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What is the Function of a Car Synchronizer?

The main function of a car synchronizer is to bring the gears that are about to mesh to the same rotational speed, enabling smooth engagement. Without a synchronizer, forcibly inserting a slowly rotating gear into a high-speed rotating gear would inevitably cause gear grinding. Synchronizer Components: The synchronizer consists of three parts: the synchronization device (including the pushing component and friction component), the locking device, and the engagement device. Synchronizers come in various types, such as constant pressure type, inertial type, and self-energizing type. Synchronizer Types: Currently, almost all synchronizers use friction-inertial synchronization devices. Depending on the locking device, they are further divided into lock-ring inertial synchronizers and lock-pin inertial synchronizers. Symptoms of Synchronizer Damage: Damage to the car synchronizer can lead to difficulties in gear shifting, accompanied by the sound of shifting impact. During driving, gear disengagement may occur after upshifting. Incorrect operation methods can cause abnormal wear, burning, and failure of the synchronizer. A damaged synchronizer may result in the inability to shift gears and produce noise, often due to improper usage or severe gear wear.

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What are the new car modification regulations in Tianjin?

What is the normal coolant temperature for an engine?

Is a Tiptronic Transmission the Same as an AT Transmission?

What is the speed limit on the Shenji Expressway?

What is the coverage of water damage insurance for vehicles?

What are the consequences of turning on the car air conditioning without starting the engine?

What is the Function of a Car Synchronizer?

How Many Kilowatt-Hours of Electricity Does a Car Battery Have?

What Happens If the Catalytic Converter Is Removed?

What is the difference between different colors of antifreeze?

What is the difference between non-motorized vehicles and motor vehicles?