Is Washing the Catalytic Converter Effective?

China V Diesel Quality Standards?

China V diesel standards specify the following parameters: color 3.5, oxidation stability 2.5mg/100ml, sulfur content 0.001%, acidity 7mgKOH/100ml, 10% distillation residue carbon content 0.3%, no mechanical impurities, polycyclic aromatic hydrocarbons content 11%, flash point (closed cup) 55°C, 50% evaporation temperature 300°C, 90% evaporation temperature 355°C, 95% evaporation temperature 365°C. Below is additional information: 1. Anti-knock quality: Determined by cetane number. Low cetane number makes fuel difficult to ignite with long ignition delay and unstable engine operation, while higher cetane number provides better ignition performance, shorter ignition delay, more uniform combustion and smoother operation. Excessively high cetane number may cause incomplete combustion and black smoke. 2. Evaporation characteristics: Evaluated by distillation range and flash point. Lower 50% evaporation temperature indicates more light fractions in the fuel, making diesel engines easier to start. Lower 90% and 95% evaporation temperatures indicate fewer heavy fractions. National standards specify that -35 and -50 grade light diesel must have flash points not lower than 45°C. 3. Flow characteristics: Evaluated by viscosity, pour point and cold filter plugging point. Too low viscosity may cause leakage between high-pressure fuel pump plunger and barrel, while too high viscosity makes fuel supply difficult. 4. Corrosiveness: Evaluated by sulfur compounds and sulfur content. Stability is evaluated by total insolubles and 10% distillation residue carbon content.

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What is the direction of car tire screws?

The direction for tightening car tire screws is clockwise, while the direction for loosening them is counterclockwise. Signals indicating the need for car tire replacement: 1. Tread wear approaching the wear indicator: Any brand of tire will have a wear indicator at the bottom of the tread grooves. Generally, the wear indicator height for passenger car tires is 1.6 mm, while for heavy-duty tires it is 2.4 mm. Some car owners believe that as long as the tire is not punctured, they can continue to use it even if the tread pattern is almost worn out. Such old tires are actually very dangerous. When encountering wet or slippery roads, the tread pattern cannot completely drain the water beneath the tire, which can easily lead to loss of vehicle control. 2. Tire damage such as cracks or bulges: Tire damage includes tread cracks, tread bulges, missing tread rubber, severe sidewall wear, and multiple punctures by foreign objects. Especially in the case of bulges, the tire is at risk of bursting at any time. As soon as these types of damage are noticed, car owners should promptly take their vehicle to a professional tire shop for inspection and replace the tires as necessary. 3. Tire age expiration: The typical service life of a tire is around 5 years. Beyond this period, the tire begins to age. The main signs of tire aging are surface hardening followed by the appearance of cracks. Aged tires lose their elasticity, and continued use can lead to tread deformation, posing a risk of tire blowout.

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What are the main traffic regulations for motorcycles?

Motorcycles are subject to two main types of traffic regulations: vehicle inspections and traffic rules. Below are the detailed regulations concerning motorcycles: 1. Vehicle Inspection: Motorcycles must undergo inspection every two years within the first four years from the date of registration, and annually thereafter. 2. Traffic Rules: The traffic rules for motorcycles include road traffic regulations and motor vehicle traffic regulations. Key provisions include: minors under the age of 12 are not allowed to ride on the back seat of a motorcycle, light motorcycles are not allowed to carry passengers, motorcycles cannot be towed by other vehicles, and passengers on two-wheeled motorcycles must ride facing forward.

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Car Makes Strange Noise and Fails to Start After Shifting to P Gear Before Full Stop?

Damage to the transmission and drivetrain components. Precautions for using automatic transmission vehicles: 1. Avoid automatic mode: In hot weather during summer, the automatic transmission may overheat, which can lead to the risk of explosion. High-speed driving should also avoid using automatic mode, as prolonged operation can cause the automatic transmission to overheat and potentially explode. 2. Avoid sudden acceleration for overtaking: This can lead to overheating and explosion risks for the automatic transmission. When overtaking, switch to manual mode and downshift one or two gears while fully pressing the throttle. 3. Avoid using S mode (Sport mode): Sport mode can only utilize up to 10% of the power output, which may cause the transmission to overheat and even risk cylinder boiler explosion.

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What is the definition of aggressive driving?

1. Definition of aggressive driving: Driving a car in a non-standard manner, such as high-speed driving in low gear, prolonged driving at low speed in high gear, sudden braking and acceleration, not slowing down when turning, and drifting in place, all fall under the category of aggressive driving. 2. Hazards of aggressive driving: The engine's operating temperature is around 90°C. If the accelerator is floored before the temperature reaches 90°C, the engine will run at high RPM, causing its temperature to rise rapidly. Since the engine's lubricant cannot lubricate and cool in time, it will accelerate engine wear, potentially leading to oil burning. In severe cases, cylinder scoring or engine seizure may occur.

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Are parking lot ETC and highway ETC the same?

Parking lot ETC and highway ETC are the same. Here is detailed information about ETC: 1. Definition: ETC is an electronic toll collection system. By installing a sensor card on the car's windshield and pre-storing funds, there is no need for manual toll collection or stopping at toll points, which can greatly improve driving efficiency in China. 2. Basic principle: When a vehicle passes through a toll station, the onboard device enables vehicle identification, information writing, and automatic deduction of corresponding funds from the pre-stored account. ETC is an electronic toll collection system for roads, bridges, and tunnels that is being actively developed and promoted internationally.

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Is Washing the Catalytic Converter Effective?

China V Diesel Quality Standards?

What is the direction of car tire screws?

What are the main traffic regulations for motorcycles?

Car Makes Strange Noise and Fails to Start After Shifting to P Gear Before Full Stop?

What is the definition of aggressive driving?

Are parking lot ETC and highway ETC the same?

Can the Great Wall Fengjun 5 be turned off while it is self-cleaning?

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