What is the minimum speed limit for small cars on highways?

What are the effects of removing the catalytic converter from a car?

Removing the catalytic converter primarily has three major effects, as outlined below: Increased vehicle emissions: Without the catalytic converter, the exhaust gases cannot be effectively purified, leading to emissions that exceed regulatory standards. Reduced vehicle performance: Removing the catalytic converter can increase fuel consumption, thereby diminishing the car's power. Failed vehicle inspections: Since the catalytic converter's removal results in non-compliant emissions, the vehicle is likely to fail annual inspections. Below is a brief introduction to the catalytic converter: The catalytic converter is named 'three-way' because it simultaneously converts three major harmful substances in exhaust gases into harmless compounds. Its working principle involves enhancing the activity of CO, HC, and NOx gases as high-temperature exhaust passes through the purification device. This promotes specific oxidation-reduction chemical reactions: CO oxidizes into colorless, non-toxic carbon dioxide gas at high temperatures; HC compounds oxidize into water and carbon dioxide; and NOx is reduced into nitrogen and oxygen. These three harmful gases are transformed into harmless ones, thereby purifying the vehicle's exhaust.

9

5

Share

What is the standard tire pressure for the Highlander?

The normal tire pressure range for the Highlander is 2.4-2.5 bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2 bar in winter and reduced by 0.1 bar in summer. This data is based on the international GBT2978-2008 standard requirements. Some Highlander models are equipped with a tire pressure display function. By selecting the menu on the steering wheel, navigating to the instant fuel consumption display, and pressing the directional key downward, the tire pressure will be shown. The tire pressure monitoring system is a type of active safety device that can alert the driver in time when there are signs of danger in the tires, prompting them to take appropriate measures to avoid serious accidents. Generally, a tire pressure exceeding 2.8 bar is considered too high, while a pressure below 2.0 bar is too low. Hazards of overinflated tires: Reduced friction and adhesion of the tires, affecting braking performance; causes steering wheel vibration and deviation, lowering driving comfort; accelerates wear on the central tread pattern, reducing tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overextends the tire cords, reducing elasticity and increasing the load on the vehicle during driving. Hazards of underinflated tires: Increases the friction coefficient with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement in various parts of the tire, causing abnormal heat due to excessive rolling; reduces the functionality of the cords and rubber, leading to delamination or cord breakage and excessive friction with the rim, damaging the bead area and causing abnormal wear; multiplies the friction between the tire and the ground, sharply raising tire temperature, softening the tire, and drastically reducing its strength. High-speed driving under these conditions may lead to tire blowouts. If the tire pressure monitoring indicator light comes on (a yellow symbol with an irregular circle, no stamp on top, four small spikes at the bottom, and an exclamation mark inside), it is generally due to one of the following three reasons: Abnormal tire pressure. Typically, it will alert if the pressure is below 1.8 bar or above 3.0 bar. In this case, tire inspection and pressure adjustment are necessary. Tire pressure monitoring not reset. After inflating the tires, if the tire pressure is not reset in time, the system will still record the previous data, causing the indicator light to come on. Simply resetting the tire pressure will resolve this issue. Damaged tire pressure sensor. The sensor, which monitors tire pressure, is installed inside the tire and connected to the inflation valve. If the sensor is damaged during driving, the tire pressure warning light will illuminate. For sensor damage, the only solution is to replace it with a new one.

3

4

Share

What are the penalties for speeding?

For ordinary vehicles outside highways, the penalties and demerit points for speeding are as follows: No penalty: Speeding within 10% above the speed limit is temporarily not penalized. Penalty: Speeding 10% to 20% above the speed limit results in a fine and 3 demerit points; speeding 20% to 30% above the speed limit results in a fine and 6 demerit points; speeding 30% to 50% above the speed limit results in a fine and 6 demerit points; speeding 50% to 70% above the speed limit results in a fine, 12 demerit points, and may also lead to license suspension; speeding 70% or more above the speed limit results in a fine, 12 demerit points, and may also lead to license suspension.

17

0

Share

Does an Unresolved Traffic Accident Affect Vehicle Annual Inspection?

An unresolved traffic accident does affect the vehicle annual inspection. Below is an extended introduction: Vehicle Annual Inspection: Vehicle annual inspection refers to a mandatory test for every vehicle that has obtained an official license plate and registration certificate. It is equivalent to an annual physical examination for the vehicle in accordance with the "Technical Conditions for Motor Vehicle Operation Safety." The vehicle annual inspection helps promptly eliminate potential safety hazards, encourages enhanced vehicle maintenance, and reduces the occurrence of traffic accidents. Relevant Policies for Vehicle Annual Inspection: There are relevant regulations in documents such as the "Implementation Regulations of the Road Traffic Safety Law" regarding vehicle annual inspections. Prior to the inspection, certain preparatory work is required (such as understanding relevant information, online appointment procedures, and issues to be aware of for the vehicle) to ensure a smooth and successful inspection. There are initial and periodic inspections, as well as some related policies.

9

2

Share

Is it okay to keep the clutch partially engaged while reversing?

It is not recommended to keep the clutch partially engaged while reversing, as this is a major cause of clutch wear. The clutch friction plate is a wear-prone component. However, good driving habits can effectively reduce clutch wear and extend its service life. Below is an extended explanation: Partial clutch engagement (half-clutch): This occurs when the clutch pedal is released to the point where the pressure plate just begins to press the clutch friction plate against the flywheel, and then the pedal release is stopped, keeping the clutch in an unstable state of partial contact. This allows the engine to continue running while also enabling partial power output in a slipping state. Avoid prolonged partial clutch engagement: Generally, brief partial clutch engagement during reversing is acceptable. For passenger cars, keeping the clutch partially engaged for less than a minute has minimal impact. Frequent partial engagement in stop-and-go traffic is also acceptable as long as there are brief intervals—continuous engagement should be avoided.

3

1

Share

Do You Need to Go Through Neutral When Shifting from 2nd to 1st Gear?

Shifting from 2nd to 1st gear does not require going through neutral. Here is an extended explanation: Shift gears according to the car's speed: Generally, start in 1st gear, then shift to 2nd after driving a few meters. Shift to 3rd when the speed reaches above 20 mph but below 35 mph; shift to 4th when the speed reaches above 35 mph but below 45 mph; and shift to 5th when the speed exceeds 45 mph. This applies to standard 5-speed transmission cars. For cars with 6 or more gears, you can upshift approximately every 15 mph increase in speed. Additionally, when shifting gears, pay attention to the engine's RPM; it's best to shift around 2500 RPM.

9

2

Share

What is the minimum speed limit for small cars on highways?

What are the effects of removing the catalytic converter from a car?

What is the standard tire pressure for the Highlander?

What are the penalties for speeding?

Does an Unresolved Traffic Accident Affect Vehicle Annual Inspection?

Is it okay to keep the clutch partially engaged while reversing?

Do You Need to Go Through Neutral When Shifting from 2nd to 1st Gear?

What engine does the Zhonghua H330 use?

Should the Money Be Paid Before or After the Transfer of Ownership for a Used Car?

What is the difference between waxing and not waxing after a few years?

What are the mandatory insurances for vehicles?