What are the driving test policies?

Can Shell and PetroChina Gasoline Be Mixed?

Shell and PetroChina gasoline can be mixed as long as they have the same octane rating. Gasolines with different formulations share the same base oil, differing only in additives. However, these additives do not affect gasoline usage—only the octane rating impacts engine performance. Therefore, gasolines from different stations can be mixed if they share the same octane rating. The octane rating represents the ratio of the actual gasoline's anti-knock properties to those of standard gasoline. A higher octane rating indicates stronger anti-knock performance. Standard gasoline consists of isooctane and n-heptane, and a higher octane rating is not necessarily better. The appropriate octane rating should be chosen based on the engine's compression ratio.

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Can You Make a U-Turn in a Lane Marked for Left Turns?

A lane marked for left turns may or may not allow U-turns, depending primarily on the signage at the intersection. Here are the specifics: 1. Vehicles are prohibited from making U-turns at locations with signs or markings indicating 'No U-Turn' or 'No Left Turn.' 2. If there is a dashed line between the left-turn stop line and the crosswalk, U-turns are permitted. However, whether you can make a U-turn on a red light depends on the presence of barriers or green islands. Basic considerations for making a U-turn include: 1. Intersections with U-turn signals: Follow the traffic signals and ground markings, typically in the leftmost lane. 2. Intersections without U-turn signals but with left-turn signals: As long as there are no 'No U-Turn' signs or separate U-turn signals, vehicles can make U-turns at any time, provided they do not interfere with normal traffic and ensure safety. 3. Yellow grid areas: These indicate no stopping. If the light is red ahead, vehicles behind should avoid this area. 4. Crosswalk areas: Although these areas generally lack 'No U-Turn' signs, they are equivalent to pedestrian walkways and do not permit U-turns.

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What does Yinglang GT mean?

Yinglang GT refers to the Buick Yinglang GT, which truly integrates performance and comfort and is known as the 'little LaCrosse'. This vehicle, with its product strength of a premium sedan, has created a new pattern in the mid-to-high-end car market and is a three-box car. The Yinglang GT features a native vertical waterfall-style grille design that is harmoniously matched. The willow-leaf-shaped crystal diamond headlights have rounded edges, aligning with the plain and stable styling of family cars. The cooling vent area of this car has been reduced, and the front fog lights have been changed to a mild and simple oval shape. The Yinglang GT has a body length, width, and height of 4609mm, 1798mm, and 1486mm respectively, with a wheelbase of 2640mm. The car is front-engine, front-wheel drive, and its engine delivers a maximum power of 120kW and a maximum torque of 230Nm.

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How to Solve the Problem of Door Glass Rattle?

Solutions for door glass rattle: 1. The rubber guide rail of the door glass is too dirty or has foreign objects: Use clean water or rubber protectant sprayed on a lint-free cloth, then wrap it around a ruler or other flat tool and insert it into the rubber groove for cleaning; 2. The rubber guide rail of the door glass has aged: Use rubber protectant to temporarily restore some elasticity to the rubber, reducing the noise caused by friction with the glass, but this only lasts for about ten minutes, and the rubber can be replaced; 3. The lifting mechanism has dust, debris, or a faulty lifting motor: Clean the contaminated grease and apply new grease to solve the problem, but if the motor is faulty, it can only be replaced entirely.

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Does turning on the air conditioning in the car in summer cause fogging on the outside or inside?

It occurs on the outside. Here is some extended knowledge: 1. In a stuffy summer car with the air conditioning on, since the temperature inside the car is lower than outside, the water vapor in the outside air will condense when it meets the cold car windows, causing fogging on the outer surface. 2. In cold winter, the temperature inside the car is higher than outside, so the water vapor in the inside air will condense when it meets the cold car windows, forming fogging on the inner surface of the windows. Solutions for fogging inside the car: 1. After the engine warms up, turn on the heater and temporarily close other air vents, directing the airflow straight at the window surface to quickly disperse the fog. 2. Turn on the air conditioning, adjust the interior temperature to eliminate fogging inside the car, allowing the window frost to melt quickly. 3. Apply a thin layer of glycerin or alcohol on the windshield to prevent frost formation on the glass surface for a short period. 4. Dissolve dishwashing liquid in water and apply it to the inside of the windshield with a clean cloth. Many bubbles will form, but they will disappear after a while, leaving a film of detergent that effectively prevents frost formation on the glass for up to two hours. 5. If frost forms on the windshield, stop the car to scrape off the frost and wipe it clean with a dry towel. Avoid driving with frost or wiping while driving to ensure safety.

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How is vehicle fuel consumption calculated?

Fuel consumption per 100 kilometers = Volume of fuel consumed (liters) ÷ Distance traveled with that fuel (kilometers) × 100. For example: If a vehicle consumes A liters of fuel while traveling N kilometers, then the fuel consumption per 100 kilometers = A ÷ N × 100. Of course, a vehicle's fuel consumption per 100 kilometers is not always constant; factors such as different road conditions, load capacity, temperature, and whether the air conditioning is on all affect fuel consumption. Here are some tips to reduce vehicle fuel consumption: 1. Break bad driving habits: Bad driving habits lead to higher fuel consumption. When driving, avoid stomping on the accelerator when starting, and smooth acceleration and steady speed are the most fuel-efficient. 2. Avoid using low-quality gasoline: The quality of fuel directly affects fuel consumption. If low-quality gasoline is used for a long time, it produces more impurities than normal-quality gasoline, which can more easily clog the fuel system, resulting in incorrect air-fuel ratios and increased fuel consumption. 3. Clean engine carbon deposits: Excessive engine carbon deposits are a major cause, mainly due to the use of unsuitable fuel. If there is significant carbon buildup in the engine, it's best to take the vehicle to a 4S shop for professional technicians to clean the carbon deposits inside the engine.

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What are the driving test policies?

Can Shell and PetroChina Gasoline Be Mixed?

Can You Make a U-Turn in a Lane Marked for Left Turns?

What does Yinglang GT mean?

How to Solve the Problem of Door Glass Rattle?

Does turning on the air conditioning in the car in summer cause fogging on the outside or inside?

How is vehicle fuel consumption calculated?

Do New Cars Need Seat Covers?

Is the vehicle purchase tax required to be paid when registering the license plate?

What does S-line mean on Audi cars?

Why is the engine shaking and weak?