What is the recommended interval for changing car engine oil?

Do 7-seater vehicles still require lettering in 2021?

Whether 7-seater vehicles require lettering in 2021 depends on the nature of the vehicle. Generally, non-commercial household 7-seaters are not mandated to have lettering, while commercial 7-seaters must have it. Below are the relevant details about lettering: Purpose: For travel safety and the safety of passengers, the aim is to remind drivers to load passengers according to regulations, enhance public supervision of van transportation, raise awareness of traffic safety among the public, and consciously resist illegal activities such as overloading to reduce road safety hazards. Consequences of not having lettering: According to relevant regulations, commercial motor vehicles must have mandatory lettering. Vehicles without lettering are not allowed on the road by traffic police. If caught, the driver may face fines and penalty points.

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Can the BMW 5 Series Use 92 Octane Gasoline?

BMW 5 Series cannot use 92 octane gasoline; it should use 95 octane gasoline, as this fuel grade is recommended in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, it can also be found on the fuel tank cap. Typically, the fuel grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. If the compression ratio is higher, 98 octane gasoline should be selected. However, with the application of new technologies, the fuel grade cannot be solely determined by the compression ratio. High compression ratio engines can also be tuned to use lower octane gasoline, as factors like ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. Occasionally using the wrong gasoline grade only requires switching back to the correct grade after consumption. However, prolonged use of the wrong gasoline grade can have the following effects: For vehicles designed for lower octane gasoline, using higher octane gasoline will not cause damage, but the increased octane number can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles designed for higher octane gasoline, using lower octane gasoline can cause engine knocking. The significantly lower octane number reduces the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance is created during the upward stroke. This resistance makes the engine run very unstably. Mild knocking only increases noise without significant engine damage, but severe knocking indicates serious engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

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What car modifications are legal in 2021?

Legal modifications for vehicles are as follows: Roof racks and side running boards can be installed: The height of roof racks installed on SUVs and MPVs must be within 300 millimeters, and the width of side running boards must not exceed 5 centimeters beyond the side profile of the vehicle. Vehicle body color can be changed: You can change the vehicle color through painting or wrapping, but you must register the change with the vehicle management office within ten days. Note that colors similar to those used on emergency vehicles such as police cars and fire trucks are not allowed. The grille and front/rear bumpers can also be modified: The style of the grille and front/rear bumpers can be changed. However, the installation of new grilles and bumpers must not alter the original length and width of the vehicle. The vehicle emblem is not allowed to be changed, and the bumpers must not have any obvious protrusions, such as the so-called "tow hooks" commonly referred to as "rogue hooks," which are prohibited.

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Three Must-Have Insurances for Private Cars in 2021?

Private cars must purchase Compulsory Traffic Accident Liability Insurance (CTALI), Third-Party Liability Insurance, and Vehicle Damage Insurance. CTALI has the following two characteristics: From a legislative perspective, it is a legally mandatory insurance: According to legal procedures, all motor vehicle owners or managers must purchase CTALI. Article 5 of the 'Regulations for the Implementation of the Road Traffic Safety Law' stipulates CTALI as a mandatory requirement for obtaining vehicle license plates and registration certificates—no insurance, no driving. From a societal perspective, it serves as a social management tool: CTALI was established to address the frequent social hazards of traffic accidents. The effective compensation for personal and property losses caused by traffic accidents requires a stable source of funding. The unpredictable nature of traffic accidents means individuals cannot promptly and effectively respond to the sudden risks they pose.

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What is the 2021 Automobile Three Guarantees Law?

Automobile Three Guarantees Law refers to the three guarantees for automobiles, namely repair, replacement, and return of automobiles. The details are as follows: Repair: If the repair takes more than 5 days, the owner has the right to use a spare car. Replacement: If the same fault is repaired more than 5 times, the car can be replaced. Return: If the engine is replaced twice and still does not function properly, the car can be returned. Relevant information is as follows: Article 21 of the regulation: If the insured motor vehicle causes personal injury, death, or property loss to victims other than the personnel of the vehicle and the insured in a road traffic accident, the insurance company shall compensate within the limit of the compulsory insurance liability for motor vehicle traffic accidents according to the law. If the loss of the road traffic accident is intentionally caused by the victim, the insurance company shall not compensate. Article 22: The insurance company shall advance the rescue expenses within the limit of the compulsory insurance liability for motor vehicle traffic accidents and has the right to recover from the person causing the harm.

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How often is the annual inspection for private cars in 2021?

2021 private car annual inspection schedule: For vehicles under 10 years old, the first 6 years are exempt from inspection, with mandatory on-site inspections required in the 6th, 8th, and 10th years. Vehicles aged 10-15 years require annual inspections, while those over 15 years old need semi-annual inspections. Below are detailed explanations. Vehicle models covered by this policy: Building upon the existing exemption for non-commercial mini and micro passenger vehicles with 6 or fewer seats within 6 years, this policy now extends to include 7-9 seat non-commercial mini and micro passenger vehicles (excluding vans) in the exemption scope. Special circumstances not applicable to this policy: New vehicles within 6 years that have been involved in traffic accidents causing casualties or illegal modifications resulting in legal penalties, as well as vehicles that have not been registered for over 4 years, are not eligible for this policy.

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What is the recommended interval for changing car engine oil?

Do 7-seater vehicles still require lettering in 2021?

Can the BMW 5 Series Use 92 Octane Gasoline?

What car modifications are legal in 2021?

Three Must-Have Insurances for Private Cars in 2021?

What is the 2021 Automobile Three Guarantees Law?

How often is the annual inspection for private cars in 2021?

Where is the sunroof drain pipe of the 2013 Bora?

What to Do If You Have Two Cars Under Your Name in 2021?

Can Car Interiors Be Repainted?

Where to Buy Driving Test Insurance in 2021?