Can an Uncovered Brake Fluid Cap Cause Brake Failure?

What does HTHS mean?

HTHS stands for "High Temperature High Shear viscosity," which is an indicator of the viscosity stability of engine oil under high temperature and high shear conditions, reflecting the oil's ability to maintain lubrication under such conditions. Here is some relevant information: Relationship between oil viscosity and anti-wear properties: From an anti-wear perspective, it's not just the oil film that plays a role, but more importantly, the additive formulation of the oil. The anti-wear additive system is crucial because wear occurs under the most extreme boundary friction conditions during operation, where the oil film between friction pairs no longer exists and cannot provide anti-wear protection. Additional chemical components, such as zinc, molybdenum, and phosphorus, are needed to provide anti-wear effects. HTHS value and the engine: When the engine reaches normal operating temperature, wear occurs under extreme boundary friction conditions. At this point, the oil film between friction pairs is extremely thin, requiring both oil film strength and anti-wear additives to provide protection. Whether during the compression stroke or the power stroke, the piston experiences the highest pressure near the top dead center. Due to the circular motion of the crankshaft, the connecting rod is mostly in an inclined position, increasing the pressure on a single side of the piston. This results in extremely high shear pressure from the piston ring against the cylinder wall. Combined with high-speed shear motion, severe boundary friction occurs. If the oil film strength is insufficient and breaks, accelerated wear is inevitable. This wear can lead to reduced sealing within the cylinder, allowing oil to enter the combustion chamber and burn. Deterioration and damage: If the tire pressure exceeds the standard by too much, it can cause excessive outward expansion of the tire, weakening its strength and reducing its lifespan. Before inflating, clean any dirt from the valve stem and ensure the valve core is not loose. After inflation, check for leaks and secure the valve cap to prevent dirt from entering the tire. Tire pressure can be measured using a tire pressure gauge. Measurements taken at room temperature are more accurate, while those taken at very high or low temperatures are less reliable.

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How many points will be deducted for driving at 70 km/h in a 60 km/h speed limit zone?

If the current highway speed limit is 60 km/h and the actual speed reaches 70 km/h, no points will be deducted. According to the new traffic regulations implemented on April 1, 2022, speeding within 20% of the prescribed speed limit does not result in point deductions. The calculation formula is: (70-60)/60×100%=10/60×100%≈16.7%, which means the speed exceeds the limit by 16.7%, so no points will be deducted. Point deduction standards after the implementation of the new traffic regulations on April 1, 2022: Exceeding the speed limit by less than 10%: warning, no fine or point deduction; Exceeding the speed limit by more than 10% but less than 20%: a fine of 200 yuan, no point deduction; Exceeding the speed limit by more than 20% but less than 50%: a fine of 200 yuan, 6 points deducted if on highways and urban expressways, 3 points deducted on ordinary roads; Exceeding the speed limit by more than 50%: 12 points deducted if on highways and urban expressways, 6 points deducted on ordinary roads. Hazards of speeding: Increased reaction distance: When a vehicle travels at 60 km/h, the average reaction time from recognizing danger to applying the brakes is about 0.7 to 1.0 seconds, with a reaction distance of approximately 17 meters (free travel distance). At 120 km/h, the reaction distance increases to about 39 meters (free travel distance), doubling the risk. Increased vehicle wear: High-speed operation intensifies the workload and stress on the vehicle, accelerating wear and damage to components. This is particularly detrimental to the tires, causing jumping and skidding wear, raising friction temperatures, and leading to rapid aging and deformation, increasing the risk of blowouts. Disruption of normal traffic flow: Speeding inevitably leads to frequent overtaking and meeting situations, increasing the driver's psychological stress and interfering with normal traffic flow. If the driver lacks quick reflexes, they may be unable to handle sudden dangers, losing control of the vehicle. Reduced reaction ability: At high speeds, the driver's focus shifts further ahead, narrowing the field of vision. Objects outside the window pass by quickly, and it takes about 0.4 seconds to sense a target and an average of 1 second to clearly identify it. In dangerous situations, there may not be enough time to judge and take emergency measures. Extended braking distance: As speed increases, the vehicle's braking performance decreases, friction coefficients drop, and braking distances lengthen, making it harder to stop in time. Additionally, higher speeds increase vehicle vibration and jolting, compromising safe driving. Worsened accident consequences: The kinetic energy of a moving object is proportional to its mass and the square of its speed. Experiments show that a vehicle hitting a concrete wall at 60 km/h is equivalent to falling from a height of 14 meters (5 stories). At 100 km/h, it is equivalent to falling from 39 meters (13 stories), with extremely severe consequences.

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What does the yellow exclamation mark on the Honda Vezel mean?

The appearance of an exclamation mark on the car dashboard indicates an abnormality or malfunction in the corresponding system. There are many indicator lights on the car dashboard with exclamation marks, such as the tire pressure indicator light, lighting fault indicator light, steering system fault indicator light, braking system fault light, transmission fault indicator light, and wiper fault indicator light. Below is a detailed introduction to the exclamation mark warning lights: General faults: A triangle with an exclamation mark inside. If this symbol lights up, it indicates a fault in the car's general performance, components, or functions. Main issues include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, engine oil pressure sensor failure, etc. It is necessary to go to a 4S shop for inspection to identify the source of the fault. Automatic transmission fault: A yellow gear with an exclamation mark inside. This is the automatic transmission fault warning light, indicating a fault in the transmission or transmission lubricant below the normal range. The transmission oil needs to be replaced promptly. Braking system fault: A circle with an exclamation mark inside parentheses. This represents a warning for the braking system, mainly indicating a fault in the braking system or low brake fluid level. The braking system should be inspected immediately to avoid accidents. Abnormal tire pressure: A horizontal line under parentheses with an exclamation mark in the middle. This represents the tire pressure monitoring warning light, which lights up when the car's tire pressure is too low. Check the car's tire pressure and restore it to the normal range. Lighting fault: A yellow bulb with an exclamation mark. This is the lighting fault indicator light, indicating a fault in the car lights. Solution: Go to a 4S shop for inspection as soon as possible, or check by yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the problem. In addition, during daily use of the vehicle, the warning lights displayed on the vehicle dashboard are divided into two different colors, yellow and red: Yellow indicates a fault in the corresponding system, but the problem is not very serious. Reduce speed and proceed to the corresponding repair point for maintenance to eliminate potential safety hazards in time. Red indicates a very serious problem in the corresponding system. In this case, do not continue driving. Stop the car by the roadside and call for professional help to prevent unpredictable dangers to the vehicle and personal safety caused by forced driving. It should be noted that when the car is started, all lights will turn on, and the system will perform an automatic check. After the check is completed, the lights will automatically turn off. If a light does not turn on when the ignition switch is turned on, remains on without turning off, or lights up while driving, it indicates a fault in the related system. In such cases, seek professional help promptly for car inspection to eliminate potential safety hazards.

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What Causes the ABS Light to Illuminate After Car Washing?

There are various states of the ABS light being on, with different causes and solutions for each state. The details are as follows: State 1: ABS warning light remains constantly illuminated (most common). Cause 1: The ABS wheel speed sensor's sensing part is covered by dirt, mud, or other contaminants, affecting the sensor's ability to detect the corresponding speed signal. This prevents the ABS computer from determining the vehicle speed and calculating the wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt off the wheel speed sensor and adjust the gap between the sensor and the signal ring to restore normal function. Cause 2: Poor signal quality due to loose connections in the system wiring or poor contact in the ABS relay, leading to system failure. Solution: Inspect the wiring connections and reconnect any loose parts. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple vehicle electrical devices are in use, the battery voltage drops below 10.5V. The ABS warning light turns off as the engine speed increases and voltage rises. This may also occur if the ABS system's power supply voltage is too low due to poor terminal contact or grounding issues. Solution: Check the battery's specific gravity, inspect the charging system, and examine the power supply (e.g., voltage relay or poor power contact). State 3: ABS warning light remains on after engine start and only turns off when the engine is turned off (IGFF). Cause: Poor grounding contact in the ABS hydraulic valve body, loose wiring connections in the ABS hydraulic valve body, or ABS computer malfunction. Solution: Loosen and retighten the grounding screw of the hydraulic valve body, clean the contact surface if necessary, check for enlarged terminal gaps, and replace the ABS or ABS/ASR computer if needed. State 4: ABS warning light illuminates during high-speed driving. Cause: The ABS computer detects a significant discrepancy between the rear and front wheel speed signals during high-speed driving. This may also occur due to incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, as indicated on the label near the fuel tank cap. State 5: ABS warning light intermittently illuminates. Cause: Improper adjustment of the brake light switch or poor internal contact in the brake light. Solution: Start the engine, press the brake pedal, push the brake switch linkage down fully with a finger, then release the brake pedal to complete self-positioning. Replace the brake light switch if necessary. If the ABS warning light is on, it is recommended not to continue driving. An illuminated ABS light indicates a fault in the vehicle's anti-lock braking system. During emergency braking, if the wheels lock up, the vehicle may skid uncontrollably, making it difficult for the driver to slow down or adjust the vehicle's trajectory, posing significant safety risks.

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How often should a Volkswagen Magotan be serviced?

Magotan's first maintenance is free at the 4S store within one year from the date of purchase or when the vehicle reaches 7,500 km; thereafter, maintenance is required every 15,000 km or once a year at the 4S store. Below are the details about maintenance: 1. Maintenance items: Regularly replace the oil filter, air filter, fuel filter, as well as coolant, brake fluid, power steering fluid, tires, and brake pads. 2. Purpose of maintenance: To promptly identify any issues with the vehicle and prevent unexpected incidents while driving.

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Can the Sagitar use 92 gasoline?

Sagitar cannot use 92 gasoline; it requires 95 gasoline because it is equipped with a turbocharged engine. Using 92 gasoline may lead to the following issues: 1. Using 92 gasoline can cause knocking in the engine. Knocking is an abnormal combustion phenomenon in the engine. When the piston is in the compression stroke, it moves upward to compress the air-fuel mixture, increasing its temperature and pressure. Severe knocking can even lead to connecting rod deformation or piston cracking. 2. The burning air-fuel mixture pushes the piston downward while the piston is moving upward, which can affect the engine's power output and fuel consumption.

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Can an Uncovered Brake Fluid Cap Cause Brake Failure?

What does HTHS mean?

How many points will be deducted for driving at 70 km/h in a 60 km/h speed limit zone?

What does the yellow exclamation mark on the Honda Vezel mean?

What Causes the ABS Light to Illuminate After Car Washing?

How often should a Volkswagen Magotan be serviced?

Can the Sagitar use 92 gasoline?

Will running a yellow light be captured by traffic cameras in 2021?

Is it problematic to reverse at a highway entrance?

What is the displacement of the Buick 532t?

Where is the key sensing area of the Buick Regal?