Which car has the 'Song' character as its logo?

Is there a safety hazard if a car's engine is leaking oil?

A car's engine leaking oil poses safety hazards. The safety hazards of engine oil leakage include: Engine oil leakage can lead to poor lubrication, affected cooling, rapid generation of impurities and dirt, which exacerbates wear on the cylinder block, bearings, and gears. If the car burns oil, the internal pressure increases, accelerating oil leakage, smoke emission, etc. In severe cases, it can lead to the car catching fire. There are several reasons that can cause engine oil leakage: First, poor sealing due to issues such as valve cover gasket, oil cooler, oil filter, distributor housing mounting hole, rocker arm cover, camshaft bearing rear seal cover, and engine bracket plate deformation can lead to engine oil leakage. Second, damage to the front and rear crankshaft oil seals and oil pan gasket to varying degrees can also cause engine oil leakage. Third, improper installation or damage to the timing gear cover gasket can result in loose screws and oil leakage.

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What is the 0-100 km/h acceleration time for the 2021 Elantra?

According to official data, the 2021 Elantra comes in two models: 1.4T and 1.5L. The 1.4T model accelerates from 0-100 km/h in 9.5 seconds, while the 1.5L model takes 12.3 seconds. Factors affecting a vehicle's 0-100 km/h acceleration time are as follows: Torque: Torque, in simple terms, represents how much force is available. The greater the torque, the more force is applied to propel the vehicle, resulting in faster acceleration. The maximum torque of the Veloster is 250 Nm, with a 0-100 km/h acceleration time of 7.7 seconds. The 2021 Elantra 1.4T has a torque of 211 Nm and accelerates from 0-100 km/h in 9.5 seconds. Transmission efficiency: The transmission acts as a medium for power delivery and inevitably involves power loss. Higher transmission efficiency leads to better acceleration performance. Generally, transmission efficiency ranks as follows: manual transmission > dry dual-clutch transmission > wet dual-clutch transmission > AT transmission > CVT transmission. The 2021 Elantra 1.4T is equipped with a 7-speed dry dual-clutch transmission. Power-to-weight ratio: The relationship between horsepower and vehicle weight is called the power-to-weight ratio (measured in Hp/T). A higher power-to-weight ratio results in faster acceleration. The Veloster has a power-to-weight ratio of 137 Hp/T and a 0-100 km/h acceleration time of 7.7 seconds. The 2021 Elantra 1.4T has a power-to-weight ratio of 110 Hp/T and accelerates from 0-100 km/h in 9.5 seconds.

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Is Full Underbody Protection Necessary?

Full underbody protection is not necessary. Common underbody damages: 1. Scraping or impact from road debris: Road construction in China often leaves large rocks or uneven surfaces. Careless driving on such roads can easily cause scraping or impacts from protruding objects. These unpredictable incidents can damage underbody components. 2. Chemical corrosion: The underbody frequently contacts sewage, grease and other substances containing corrosive chemicals that gradually damage underbody parts, making corrosion protection important. Emergency repair methods for damaged components: Brake cylinder fluid leak or pipe break: Create a small metal gasket to seal the pipe connection, or crimp/flatten the broken end to disable that wheel's braking. Low brake fluid: Use alcohol or liquor as substitute; water in emergencies. Swollen brake cup: Soak in hot water for 10-20 minutes to remove oil and restore size. Clutch disc slippage: Flip moderately worn discs; for severe cases, use layered fabric matching original thickness, secured with wire through holes. Broken tie rod end: Replace with similarly sized screw from bumper or non-essential area.

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What Sound Does Tire Cupping Make?

Tire cupping usually produces a humming sound when it becomes severe. When there is an issue with the wheel bearings, it can also cause a humming noise, which tends to get louder as the vehicle speed increases. Causes of tire cupping: Four-wheel alignment data: Inaccurate four-wheel alignment data. If the four tires are not aligned on the standard horizontal and vertical lines, the two tires on the same side will experience cupping while driving. This happens because the vehicle self-corrects, causing abnormal friction on a specific part of a tire, leading to cupping. Frame flatness: An uneven or deformed frame. This condition causes uneven tire pressure distribution, leading to cupping. It often occurs in vehicles involved in accidents. Tire pressure level: Overinflation or underinflation of tires. Overinflation accelerates wear on the center of the tire while the sides remain normal. Underinflation accelerates wear on the sides of the tire while the center remains normal.

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What Causes the Engine to Make a Knocking Sound?

Reasons for the engine making a knocking sound. Causes: Interruption or insufficient oil lubrication; loose connecting rod bearing cap bolts; excessive wear between bearings and shaft diameters; excessive clearance; bearing alloy welding detachment, etc. Knocking Sounds: Knocking sounds in the engine are mostly caused by abnormalities in the mechanical parts of the engine and are relatively serious abnormal noises. Common engine abnormal noises include piston knocking; crankshaft bearing knocking (big end bearing noise); connecting rod bearing knocking (small end bearing noise); piston pin knocking; valve tappet knocking, etc. Presence of Knocking Sounds: Simply running the engine can damage the crankshaft's connecting rod journals; if the engine speed and load are increased, the impact between the connecting rod bearings and the shaft diameters will become increasingly severe under the crankshaft's drive, leading to connecting rod bearing damage, loss of control of the connecting rod, cylinder block breakage, and ultimately engine failure.

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What is the current emission standard for passenger cars?

Currently, the emission standard for passenger cars is China VI. The fuel standards and vehicle emission standards for China VI have become more stringent, including stricter limits on sulfur, oxygen, methanol, and benzene content. Methods to check if a car meets China VI standards: Check the motor vehicle conformity certificate; refer to the vehicle's accompanying list; review the conformity certificate; query on the Motor Vehicle Environmental Protection website; inspect the vehicle's environmental protection label. Implementation timeline of China VI standards: The China VI standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine on December 23, 2016, and June 22, 2018, respectively. The "Limits and Measurement Methods for Emissions from Heavy-Duty Diesel Vehicles (China VI)" came into effect on July 1, 2019. The implementation of China VI standards imposes stricter requirements on emissions such as carbon monoxide, nitrogen oxides, and hydrocarbons.

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Which car has the 'Song' character as its logo?

Is there a safety hazard if a car's engine is leaking oil?

What is the 0-100 km/h acceleration time for the 2021 Elantra?

Is Full Underbody Protection Necessary?

What Sound Does Tire Cupping Make?

What Causes the Engine to Make a Knocking Sound?

What is the current emission standard for passenger cars?

What is the normal tire pressure for a car driving at high speed?

What is the appropriate angle for the right rearview mirror to tilt downward?

What Causes Foreign Objects in the Engine Cylinder?

How many points are deducted for reversing or driving against traffic on the highway?