Does the Avalon use Aisin 8AT?

Is Nissan French or Japanese?

Nissan is Japanese. Here is some relevant information about automobiles: 1. Definition of an automobile: According to the latest Chinese national standard "Terms and Definitions of Motor Vehicles and Trailers" (GB/T3730.1-2001), an automobile is defined as a non-track vehicle with four or more wheels, powered by an engine, mainly used for transporting people and/or goods; towing vehicles carrying people and/or goods; or for special purposes. 2. Introduction to domestic automobile brands: Domestic automobile brands include Hongqi, Changan, Great Wall, Chery, Geely, Roewe, BYD, etc.

18

5

Share

Should the Mercedes S350 use 95 or 98 octane gasoline?

According to the official vehicle manual recommendation, the Mercedes S350 should use 95 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 the Mercedes S350. 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 some new technologies, the gasoline grade cannot be solely determined by the compression ratio. High compression ratio engines can also be tuned to use lower octane gasoline because, besides the compression ratio, other factors 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 the Mercedes S350 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade can 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 can cause engine knocking. Due to the significantly lower octane value, the gasoline's ignition point decreases, causing premature ignition during the compression stroke. If detonation 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 with no 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.

18

1

Share

Which side should you overtake from when driving a motor vehicle?

Overtaking should be done from the left side, except in special regions like Hong Kong, where left-hand drive is generally the norm. When driving, the driver can observe the vehicles and road conditions ahead by slightly deviating from the lane. Therefore, overtaking from the left is safer. Correct steps for overtaking: Before overtaking, observe the vehicles behind and the road conditions through the rearview mirror. Choose a time when visibility is good, the road is straight, and there are no vehicles within 150 meters ahead. After confirming that the surroundings are suitable for overtaking, turn on the left turn signal and honk the horn to signal. At night, if honking is not allowed, use alternating high beams instead. Once the vehicle ahead signals to yield, slightly steer to the left to maintain a safe lateral distance from the vehicle being overtaken. Then, shift down a gear, accelerate by pressing the throttle, and overtake from the left side of the vehicle, minimizing the time spent side by side. After overtaking, maintain speed for a while, check the rearview mirror for approaching vehicles, and once it's safe, turn on the right turn signal and return to the original lane. Introduction to right-side overtaking: When overtaking from the right, the driver needs to move away from the vehicle ahead to observe the road and vehicle conditions, making it harder to judge if overtaking is safe. This increases the risk of accidents, so right-side overtaking is considered a traffic violation.

1

4

Share

What Causes Difficulty in Engaging Third and Fourth Gears?

Difficulty in engaging third and fourth gears is related to the transmission. Below is an introduction to the various gears in an automatic transmission vehicle: 1. P (Park) Gear: This is the parking gear, which uses mechanical devices inside the transmission to lock the rotating parts of the vehicle. It must only be used when the vehicle is completely stationary. Additionally, the gear must be in P when the engine is turned off. 2. N (Neutral) Gear: This is the neutral gear, typically used during brief stops. When in neutral, the driver can release the brake pedal to rest their right foot. However, on slopes, the brake must still be applied to prevent the vehicle from rolling unless the parking brake or electronic brake is engaged. 3. D (Drive) Gear: This is the forward driving gear. When in D, the driver only needs to control the accelerator pedal to adjust the speed. The transmission will automatically determine the appropriate gear based on the accelerator input and vehicle speed, eliminating the need for manual gear changes.

20

5

Share

What Causes the Smell of Gasoline When Starting a Car?

Car starting with a gasoline smell is mainly due to the vehicle's catalytic converter, specifically the following situations: Cold start when the catalytic converter temperature is insufficient: The catalytic converter requires a working temperature between 200-350°C to start functioning, and during normal operation, the temperature should be between 350-700°C. During a cold engine start, the catalytic converter's temperature is low and hasn't reached the working temperature. Therefore, it is normal to smell gasoline in the engine exhaust. Under normal circumstances, the engine RPM is relatively high during a cold start, one of the purposes being to quickly raise the catalytic converter's temperature. Poor combustion condition when the engine is warm: Normally, after gasoline is completely burned and purified by the catalytic converter, no noticeable smell should be present in the exhaust. However, when the engine's combustion condition is poor, an incorrect air-fuel ratio can lead to incomplete combustion of some gasoline, resulting in a possible gasoline smell. This means that the main reason for the gasoline smell when the engine is warm is that some gasoline is not burned. Issues such as engine misfire, severe carbon buildup on spark plugs or fuel injectors, malfunctioning ignition system, inaccurate ignition timing, or a dirty oxygen sensor can all contribute to the gasoline smell. Aging catalytic converter: In many older cars, the catalytic converter may be severely aged, and the oxygen sensor heavily clogged, rendering it ineffective for purification. In such cases, a gasoline smell may also be detected in the exhaust. The solution is to replace the catalytic converter, as general cleaning is often ineffective.

2

Share

Where to Recycle Three-Way Catalytic Converters?

Three-way catalytic converters can be recycled by local automotive recycling manufacturers. Below is more information about three-way catalytic converters: 1. Introduction: The three-way catalytic converter is the most important external purification device installed in a vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. 2. Structure: The outer shell of a three-way catalytic converter is made of double-layer stainless steel plates forming a cylindrical shape. The interlayer between the double-layer thin plates contains insulating material, such as asbestos fiber felt. Inside, a purifying agent is placed between mesh partitions. The purifying agent consists of a carrier and a catalyst.

7

1

Share

Does the Avalon use Aisin 8AT?

Is Nissan French or Japanese?

Should the Mercedes S350 use 95 or 98 octane gasoline?

Which side should you overtake from when driving a motor vehicle?

What Causes Difficulty in Engaging Third and Fourth Gears?

What Causes the Smell of Gasoline When Starting a Car?

Where to Recycle Three-Way Catalytic Converters?

Is it necessary to install a dash cam?

Is driving over 70 considered speeding in a 70 km/h zone?

Is HAES Speaker a Harman Kardon?

What are the Benefits and Functions of Throttle Body Cleaning?