Is it acceptable to use parking lights when entering a tunnel?

1 Answers
GiaDella
07/29/25 11:13am
Short tunnels are acceptable, but it is recommended to use low beams in long tunnels. Here is relevant information about the use of automotive lights: 1. Parking lights usage: Parking lights are white in front and red in the rear. When the light switch is turned to the first position, the front and rear lights that come on are the parking lights. Parking lights are used during evening driving to make the vehicle visible to others. When it becomes difficult to see behind through the rearview mirror, the parking lights should be turned on, especially during rainy days. However, many drivers use parking lights instead of low beams when driving in the dark, which is very dangerous because parking lights do not illuminate the road ahead. 2. Low beam usage: Low beams must be turned on when driving in areas without streetlights at night, during dusk when it is darker, or at dawn when daylight is just appearing. If encountering heavy fog, snow, or heavy rain that obstructs visibility, low beams must be turned on even during the day. In some areas where there is lighting but the brightness is insufficient, low beams should also be used. 3. High beam usage: High beams should only be used when there are no other lighting facilities on the road and no oncoming vehicles. Otherwise, they can severely interfere with the vision of other drivers and even cause traffic accidents. Be careful not to mistakenly use high beams instead of low beams.
Was this review help?
14
0
Share
More Forum Discussions

How often should a 5-seater SUV undergo inspection?

5-seater SUVs are categorized into commercial and non-commercial use. For commercial passenger vehicles, inspections are required once a year within the first 5 years, and every 6 months after exceeding 5 years. Small and micro non-commercial passenger vehicles are exempt from annual inspections within the first 6 years, require inspection once a year after exceeding 6 years, and every 6 months after exceeding 15 years. A 5-seater SUV falls under the small passenger vehicle category. Annual inspection, also known as annual review, refers to the safety inspection conducted every year or every two years, covering comprehensive checks including the horn, brakes, axle weight, chassis, ignition system, lighting system, exhaust system, license plate installation, etc. Annual inspection usually refers to the examination of certain formal IC cards, while annual review is more commonly used in daily life.
6
0
Share

How to Solve the Problem of the Starter Motor Not Turning When the Engine is Hot?

Solutions for the starter motor not turning when the engine is hot: 1. Wait for the engine to cool down and restart. If the motor turns normally, it indicates an issue with the electromagnetic switch, which should be replaced; 2. Check if the battery is low on power. If the battery is in good condition, inspect the starting circuit. If the circuit is also intact, the problem lies with the motor, which should be replaced directly; 3. Examine the coolant temperature sensor and intake air temperature sensor. If their resistance values do not meet the standard, they should be replaced immediately. The motor, also known as the starter, is an electric motor or engine that operates by the force exerted on an electrified coil in a magnetic field, causing the starter rotor to rotate. The small gear on the rotor drives the engine flywheel to rotate, which is the working principle of the motor, also referred to as the starter.
13
5
Share

What is the real reputation of the Cadillac XT4?

Cadillac XT4 has a good real reputation. Here is the relevant introduction about the Cadillac XT4: Exterior: The Cadillac XT4 adopts a dual-exterior body design with both luxury and sporty styles. The luxury version features brushed aluminum window trims and chrome door handles, while the sporty version incorporates a mesh design with carbon black elements on the roof rails, window trims, front grille, underbody panels, and wheels. The LED light clusters of the XT4 inherit the Cadillac family's signature lightning daytime running lights and vertical wing taillights. The hood of the Cadillac XT4 has a raised central design. The side profile features a sweeping, head-to-tail diving waistline, complemented by wheels up to 20 inches in size. Interior Space: The Cadillac XT4 adopts a new horizontally stretched center console design. The cabin also offers 12 user-friendly storage spaces. In terms of interior colors and materials, the XT4 provides various combinations, including black, gray, textured aluminum, and carbon fiber finishes.
20
4
Share

Does High RPM in Low Gear Damage the Car?

High RPM in low gear can severely damage the car, leading to wasted gasoline, engine damage, and excessive carbon buildup. Wasted Gasoline: The biggest impact of driving at high speed in low gear is increased fuel consumption. When driving in low gear, the faster the speed, the higher the engine RPM, resulting in relatively higher fuel consumption. The increase in fuel consumption varies depending on the vehicle model and gear, but generally, high RPM in low gear can increase fuel consumption by 2 to 3 times, with a difference of up to 12 milliliters compared to normal driving. Engine Damage: Failing to fully utilize the car's kinetic energy forces the engine to operate at high RPM. Since the gearbox is in low gear, suddenly shifting the car into high RPM operation will cause the engine to be driven by the car's movement, leading to noticeable changes in sound, which is not advisable during operation. Excessive Carbon Buildup: Long-term high RPM in low gear can cause significant carbon buildup due to incomplete fuel combustion and poor oil sealing under high temperatures. These conditions contribute to carbon deposits. When carbon buildup reaches a certain level, it can lead to difficulties in starting the vehicle, increased fuel consumption, reduced engine power, and sluggish acceleration.
11
5
Share

What Type of Oil Should Be Changed During the First Car Maintenance?

During the first car maintenance, the type of oil to be changed primarily depends on the engine type: 1. For naturally aspirated engines, synthetic or full synthetic oil is recommended; 2. For turbocharged engines, full synthetic oil is recommended. Engine oil, also known as engine lubricant, plays crucial roles in the engine, including lubrication, cleaning, cooling, sealing, reducing wear, damping vibrations, and preventing rust and corrosion. Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car. The purpose of car maintenance is to eliminate potential hazards, prevent faults, and extend the service life.
16
0
Share

What is the ignition point of gasoline and diesel?

Gasoline has an ignition point of around 427°C, while diesel's ignition point is approximately 220°C. Gasoline is more flammable, which is why vehicles with gasoline engines start more easily in cold conditions. Differences between gasoline and diesel engines: 1. Ignition method: Gasoline engines require spark plugs for ignition; diesel engines ignite directly by compressing air and fuel in the cylinder. 2. Fuel consumption: Gasoline engines have higher fuel consumption; diesel engines have lower fuel consumption. 3. Noise: Gasoline engines are quieter; diesel engines are noisier. 4. Compression ratio: Gasoline engines have a lower compression ratio, and the air-fuel mixture is ignited, making them easier to start; diesel engines have a higher compression ratio, and the air-fuel mixture is compression-ignited, making them harder to start.
19
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.