What is the difference between SAE 30 and SAE 40 engine oil?

What happens when the catalytic converter is stolen from a car?

If you notice a significantly louder exhaust sound when starting the engine, it is likely that the catalytic converter has been stolen, as the vehicle's noise cannot be eliminated after the catalytic converter is removed. You can also check if the smell of the exhaust has become stronger. If the catalytic converter is malfunctioning or stolen, pollutants in the exhaust cannot be removed, leading to a noticeably stronger odor. More information about catalytic converters is as follows: 1. Function: The catalytic converter uses precious metals inside to catalyze pollutants in the exhaust. 2. Theft: If you discover that the catalytic converter has been stolen, you should promptly notify the police, as thieves often target multiple vehicles in the area, meaning more than one person may be affected. After the police file a report, you should go to a 4S shop to have the catalytic converter reinstalled. Otherwise, the vehicle's engine warning light will remain on and cannot be turned off. Most importantly, without a catalytic converter, the vehicle will not pass the annual inspection.

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What procedures are required to use my own car for Didi?

You need to submit the required materials for joining Didi, such as ID card, bank card, driver's license, etc. Download the Didi driver app and register to log in. Requirements for private cars joining Didi: 1. Vehicle age: The vehicle must be less than 8 years old (based on the date on the vehicle registration certificate); 2. Mileage: The vehicle's mileage must be within 100,000 kilometers. Requirements for drivers joining Didi: 1. Age: Didi has no gender requirements for drivers, but has clear age requirements (male drivers must be between 22-60 years old, female drivers must be between 22-50 years old); 2. Health: Drivers must be in good health; 3. Driving experience: Drivers must have at least 1 year of driving experience and no record of major traffic accidents; 4. Philosophy: Drivers must agree with Didi's corporate culture and business philosophy, be willing to accept Didi's unified management, strictly implement Didi's pricing standards, and always maintain Didi's public image.

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What to Do When a Car Tire Is Flat?

Solutions for a flat car tire: Use a tire repair kit or replace the spare tire. A tire repair kit includes an air pump and sealant, which can inflate and repair the tire when it leaks, allowing the owner to drive to the nearest repair shop without changing the tire. Generally, a tire repair kit can only fix holes within 6mm; holes larger than 6mm or punctures on the tire sidewall cannot be repaired. After repair, the maximum speed should not exceed 80 km/h. Tire usage precautions: 1. Proper selection and matching of tires: Do not use tires of different specifications or brands on the same vehicle or axle. At a minimum, tires on the same axle should be of the same specification, brand, tread pattern, and even from the same manufacturer. 2. Check tire surface wear: Regularly inspect the tire surface for wear and address any issues promptly. Most tires have wear indicators; once the wear limit is reached, the tire must be replaced. Frequently check the tire tread and sidewalls for cracks, cuts, or other damage. 3. Regularly check tire pressure: Both overinflation and underinflation can increase tire wear.

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Does an MPV Belong to the Category of Minivans?

An MPV does not belong to the category of minivans. Below are the detailed differences between an MPV and a minivan: 1. A minivan features a single-box design, meaning the passenger space and the engine are housed within the same framework, with the engine placed beneath and behind the driver's seat. This layout results in a simpler body structure but increases the overall height of the vehicle, providing more interior space. However, it also leads to relatively higher engine noise. Additionally, since the front seats are positioned at the very front of the vehicle, there is minimal buffer space in front of the driver and front passengers in the event of a frontal collision, resulting in lower safety ratings. 2. An MPV, on the other hand, is characterized by a two-box structure, based on a sedan's layout, often utilizing the same chassis and engine as sedans. This gives the MPV a similar appearance to sedans, along with comparable driving and riding comfort. The presence of an engine compartment at the front of the vehicle effectively absorbs impact from frontal collisions, enhancing the safety of front-seat occupants.

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How to Adjust the Steering Wheel of an Audi?

Audi's method for adjusting the steering wheel: There is a fixed lever under the steering wheel. After releasing it, the steering wheel can be adjusted up and down, forward and backward. Once adjusted to a comfortable position, press the fixed lever all the way down to lock it in place. While driving, except when necessary for operation, do not operate the steering wheel with one hand for extended periods. Avoid resting your hand on the gear shift or window frame for long durations. When turning the steering wheel, avoid excessive force or sudden, jerky movements. Do not turn the steering wheel when the vehicle is stationary. Audi is a luxury car brand under the Volkswagen Group's subsidiary Audi AG, headquartered in Ingolstadt, Germany. Main models include: A1, A3, A4, A5, A6, A7, A8, Q1, Q2, Q3, Q5, Q7, Q8, TT, R8, as well as the S and RS performance series.

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What Year Has the New Energy Vehicle Quota Reached?

There are a total of 393,014 valid applications from individuals and 9,119 from companies for new energy passenger vehicle quotas. Compared to the previous period, there has been an increase of 40,000 new applications. Based on the current annual quota allocation for new energy vehicles, the latest applicants will have to wait in line for 8 years, meaning they will not receive the quota until 2026. The advantages of new energy vehicles are as follows: 1. Environmental Protection: New energy vehicles primarily use non-fuel power systems, avoiding the combustion of gasoline or diesel. Instead, they utilize clean energy sources such as electricity, solar power, or hydrogen, significantly reducing emissions of carbon dioxide and other harmful gases, thereby contributing to environmental protection. 2. No License Plate Restrictions: Due to severe environmental pollution, many cities have implemented license plate restrictions to limit private vehicle usage and alleviate environmental pressure. However, new energy vehicles produce almost zero pollution and emissions, thus exempting them from these restrictions and making travel more convenient. 3. High Efficiency: New energy vehicles generally incorporate new technologies and structures, resulting in higher operational efficiency.

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What is the difference between SAE 30 and SAE 40 engine oil?

What happens when the catalytic converter is stolen from a car?

What procedures are required to use my own car for Didi?

What to Do When a Car Tire Is Flat?

Does an MPV Belong to the Category of Minivans?

How to Adjust the Steering Wheel of an Audi?

What Year Has the New Energy Vehicle Quota Reached?

What Causes the Buick Verano's Weak Acceleration from Start?

Should You Leave a Gap When Parking in the Sun?

How long after the expiration of a regional license plate can you apply again?

What are the precautions for drivers in summer driving?