What are the exhaust emission standards for automotive environmental testing?

Where is the handbrake on a Lexus?

Most Lexus models are equipped with a foot brake or an electronic handbrake. The foot brake is located under the steering wheel on the driver's side; pressing it is equivalent to pulling the handbrake. The operation of the foot brake is similar to that of the handbrake. Once the foot brake pedal is pressed, the car will stop. When driving, pressing the foot brake pedal again will allow the car to move forward. More information about the handbrake is as follows: 1. When using the handbrake, pull it upward to stop the car. Lowering the handbrake lever while driving will allow the car to move. 2. The electronic handbrake button is usually located behind the gear lever. Cars equipped with an electronic handbrake have handbrake motors on both rear wheels. Pressing the electronic handbrake button will cause the motor to clamp the brake pads, preventing the car from rolling. 3. Cars with an electronic handbrake often also feature an autohold function, which is very useful when waiting at traffic lights. If you can't find the handbrake on your Lexus and there is no electronic handbrake button, look down near the brake pedal to find the foot brake pedal.

4

2

Share

What to Do When There is a Large Gap in the Hood?

Solution: Open the hood and adjust the rubber pillars on both sides at the front. The hood is made of rubber foam and aluminum foil materials, which reduce engine noise and isolate the heat generated during engine operation, effectively protecting the surface paint of the hood and preventing aging. The functions of the hood are as follows: 1. Airflow guidance. The shape of the hood effectively adjusts the direction of airflow relative to the car's movement and the resistance it generates, reducing the impact of airflow. 2. Protection for the engine and surrounding pipeline accessories. Under the hood is an important part of the car, which is crucial to the vehicle. 3. Aesthetics. It reflects the overall concept of the car. 4. Assisting driving vision. During driving, the driver can effectively adjust the direction and form of reflected light through the shape of the hood, reducing the impact of light. 5. Accident prevention. The engine operates in a high-temperature, high-pressure, and flammable environment, which may lead to overheating or accidental damage of components, resulting in explosions, combustion, leaks, or other accidents. 6. Special-purpose platform. Some utilize high-strength hoods as work platforms for support purposes.

20

4

Share

Should MG 6 Use 92 or 95 Octane Gasoline?

According to the official vehicle manual recommendation, MG 6 should use 92 octane gasoline. In addition to checking the appropriate gasoline grade in the vehicle manual, you can also find it marked on the fuel tank cap of MG 6. Typically, the gasoline 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. However, with the application of new technologies, the gasoline grade cannot be solely determined by the compression ratio. Even engines with high compression ratios can be tuned to use lower octane gasoline because factors other than compression ratio, such as ignition timing, turbocharging technology, and Atkinson cycle technology, also play a role. Generally, the higher the gasoline octane number, the higher the octane value 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. If MG 6 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade may have the following effects: For vehicles recommended to use lower octane gasoline, using higher octane gasoline will not cause damage, but the increase in octane value will alter the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance. For vehicles recommended to use higher octane gasoline, using lower octane gasoline may cause engine knocking. Due to the significantly lower octane value, the gasoline's ignition point decreases, causing premature ignition during the compression stroke. If combustion occurs before the spark plug ignites, resistance will arise during the upward stroke. This resistance makes the engine run very unstably. If the knocking is imperceptible, it only increases noise without obvious damage to the engine. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

17

1

Share

What is the fuel tank capacity of the Jade?

The fuel tank capacity of the Jade is 45 liters. Below is an introduction to automotive fuel tanks: 1. The automotive fuel tank is the full name of the car's fuel tank. Currently, with the development of the automotive industry and the revitalization of the domestic automotive sector, the demand for automotive fuel tanks from major automobile manufacturers has shown a significant upward trend. 2. Automotive fuel tanks are categorized by material into iron fuel tanks and aluminum alloy fuel tanks. With the application and development of various new materials, the rust prevention issue of iron fuel tanks has become the most critical problem affecting their quality. 3. For heavy-duty trucks: During the promotion of National IV and V vehicles, the quality of fuel in China has become a key issue affecting the advancement of new models, with the quality of fuel tanks, which are crucial for storing fuel, becoming a focal point. 4. Aluminum alloy fuel tanks not only meet the requirements in terms of strength but also have significant advantages in corrosion resistance compared to iron and other new materials, making them the preferred choice for large buses and heavy-duty trucks that consume large amounts of fuel and require high fuel quality. 5. Automotive fuel tanks are functionally divided into ordinary fuel tanks and heated fuel tanks.

1

Share

What transmission does the XT4 use?

The Cadillac XT4 is equipped with a 9-speed automatic transmission (9AT). This transmission delivers a very smooth driving experience and has been featured in multiple domestic models, receiving satisfactory market reviews. More details about the Cadillac XT4 are as follows: 1. The transmission can shift into 9th gear at around 80 km/h, working in perfect harmony with the engine. When overtaking is needed, it can downshift continuously to boost speed. The XT4's transmission also incorporates many new technologies, including an innovative variable-phase one-way clutch, which not only enhances the lightweight and compact design of the 9AT but also reduces the overall size and weight of the transmission. 2. The Cadillac XT4's center console features irregular and complex lines to create a strong sense of layering while maintaining the consistent material quality found in Cadillac models. The extensive use of soft materials and stitching provides an excellent visual effect. 3. Beyond its luxurious feel, the Cadillac XT4 doesn't compromise on technology. In addition to supporting 4G networks and OTA updates, the 8-inch touchscreen in the center console also supports Apple CarPlay and Baidu CarLife for smartphone connectivity. 4. In terms of configuration, features such as tire pressure monitoring, rear parking radar, cruise control, multiple driving modes, hill start assist, and a panoramic sunroof are all standard.

10

4

Share

What should be paid attention to when changing car tires?

Precautions for changing car tires are as follows: 1. Choose the appropriate tires. The specifications of the tires should be the same as the previous ones and must match the other tire on the same axle, such as speed rating, load index, tread pattern, brand, size, etc., which is beneficial for safe driving. 2. The valve stem should also be replaced. This is because when you change the tires, the aging cycles of the new tires and the valve stems are different. During the new tire cycle, the valve stem may develop issues, which are not easily noticeable. Therefore, it is best to replace the valve stem at the same time as the tires. 3. Installation direction and inflation. If using the original factory tires, install them according to the manufacturer's requirements. If using non-original tires, generally the side with the production date should face outward. If they are directional tires, ensure that the arrow on the wheel aligns with the direction of the car's forward motion. When inflating, you can inflate to the maximum pressure allowed by the tire and then reduce it to the standard pressure specified by the manufacturer. 4. It is best to install new tires on the rear axle of the vehicle. If more worn tires are placed on the rear axle, it will reduce the rear wheels' drainage capacity, thereby increasing the risk of driving in rainy conditions. Therefore, if only two new tires are installed, they should be mounted on the rear wheels.

15

1

Share

What are the exhaust emission standards for automotive environmental testing?

Where is the handbrake on a Lexus?

What to Do When There is a Large Gap in the Hood?

Should MG 6 Use 92 or 95 Octane Gasoline?

What is the fuel tank capacity of the Jade?

What transmission does the XT4 use?

What should be paid attention to when changing car tires?

What is the proper position for adjusting the seat forward and backward in Subject 2?

Why is the Mondeo called 'Mengdiudiu'?

What engine does the Ruifeng S7 have?

How to Solve the Problem of Car Key Failure and Unable to Start?