What does 5w40 mean?

Why does a manual transmission car shake when starting?

Manual transmission car shaking during startup involves many reasons, which can generally be divided into the following categories: 1. Normal phenomenon. When the clutch is released to the semi-engaged position, the vehicle will experience shaking, which is a normal phenomenon. This phenomenon is called the car's creep phenomenon. Additionally, if starting on a slight slope without giving enough throttle, the shaking will be more noticeable. 2. Driver issue. Problems with the coordination between throttle and clutch, such as insufficient throttle or releasing the clutch too quickly, can also cause shaking during startup. Adding a bit of throttle before fully releasing the clutch can improve the car's power, making starting easier and reducing shaking. 3. Vehicle malfunction. Issues with the intake system, ignition system, or fuel system can cause the car to shake when starting. For example, clogged fuel lines can lead to uneven engine cylinder operation and shaking; a dirty throttle body can cause uneven intake and shaking; damaged high-voltage wires or faulty spark plugs can result in unstable engine operation and shaking.

17

3

Share

How to Quickly Pass the Driving License Theory Test?

After enrolling in a driving school, you will receive a book for Subject 1. You can start by reading the book thoroughly, then practice on a computer or mobile phone. You can download apps like 'Driving Test Master' for practice or mock exams. The key is to practice frequently to familiarize yourself with the content—mastery of the material will likely lead to passing the test. Below is an introduction to the driving test subjects: 1. Subject 1: Also known as the theory test, it is part of the motor vehicle driver's license assessment. 2. Subject 2: Often called the 'small road test,' it includes five components: reversing into a parking space, parallel parking, stopping and starting on a slope, right-angle turns, and curve driving. 3. Subject 3: Known as the 'big road test,' it assesses road driving skills. 4. Subject 4: Another theory test, similar to Subject 1.

4

5

Share

What to Do When the Exhaust Pipe Takes in Water While Parked?

Methods to address water in the car exhaust pipe: 1. If the car's exhaust pipe takes in water and the engine stalls, do not attempt to force a restart. Instead, call for roadside assistance immediately. 2. At a 4S shop, after a simple cleaning and drying process, the engine can resume normal operation. 3. If the water exposure is minor and the intake is not severe, you can inspect the electronic systems and check for any accumulated water under the chassis yourself. If the engine must be started, first remove the spark plugs to allow some of the water in the engine to drain before reinstalling them and attempting to start the engine again, which can help prevent stalling. Maintenance tips for the exhaust pipe: 1. It is important to prevent water from entering the interior of the muffler. 2. When driving through deep water or washing the car, take precautions to avoid water entering the muffler. 3. If water does enter inadvertently, start the engine and let it idle for at least 10 minutes to warm up, which helps expel any internal water accumulation. Additionally, apply anti-rust oil inside the muffler.

3

2

Share

What are the gear positions of the Highlander?

1.P Parking Gear: The parking gear is typically used for long-term parking. The vehicle should be stationary when shifting into the parking gear. 2.R Reverse Gear: This gear is used for reversing. You must come to a complete stop by pressing the brake before shifting into reverse, and it cannot be engaged while driving. 3.N Neutral Gear: Generally used for short-term parking, with the engine in idle state. 4.D Drive Gear: One of the most commonly used forward gears, where the transmission automatically shifts gears. 5.S Sport Gear: The transmission delays shifting, keeping the engine at higher RPMs for better power response. Sport mode can be used when overtaking. 6.M Manual Gear: In manual mode, the driver needs to manually increase or decrease gears, and the transmission will not intervene automatically. 7.B Automatic Gear: Usually used during long-distance coasting or downhill driving to provide braking effect and enhance energy recovery. It can help charge the vehicle's power battery, thereby increasing battery range.

9

0

Share

How to Use Car Lights in Snowy Weather?

When driving in snowy conditions, you should turn on the headlights, clearance lights, and rear position lights. Here are the relevant details: 1. Article 58: When driving at night without streetlights, under poor lighting conditions, or in situations of low visibility such as fog, rain, snow, dust, or hail, motor vehicles must turn on the headlights, clearance lights, and rear position lights. However, high beams should not be used when a following vehicle is driving close to the vehicle in front in the same direction. In foggy conditions, motor vehicles must turn on the fog lights and hazard warning flashers. 2. Article 81: When driving on highways under low visibility weather conditions such as fog, rain, snow, dust, or hail, if visibility is less than 200 meters, drivers must turn on the fog lights, low beams, clearance lights, and front and rear position lights. The speed should not exceed 60 kilometers per hour, and a distance of more than 100 meters should be maintained from the vehicle in front in the same lane.

15

2

Share

What is the Difference Between CH and CF Engine Oils?

The differences between CH and CF engine oils lie in their application scope, grade, performance, emission standards, and price. Below are the detailed explanations: Different Application Scopes: CF is suitable for high-speed, four-stroke, naturally aspirated or turbocharged diesel engines; CH is used for high-speed, four-stroke diesel engines that comply with the 1998 U.S. emission standards and use fuel with a sulfur content below 0.5%. Different Grades: Diesel engine oils start with the letter 'C,' and the grades are CA, CB, CC, CD, CE, CF, CF-4, CG-4, CH-4, CI-4, CJ-4. Each subsequent letter represents a higher quality grade, meaning CH-grade oil is superior to CF-grade. Different Performance: With each increase in the oil quality grade, the performance improves over the previous one. Whether it's the stability of the oil (detergency and dispersancy) or the protection of the engine (corrosion resistance and oxidation resistance), CH-grade oil outperforms CF-grade. Different Emission Standards: CH-4 has higher emission standards than CF-4. Different Prices: Since CH engine oil offers better performance and a longer service life compared to CF engine oil, it is also more expensive. Engine oil is an essential item for every car owner. Inside the engine, it not only lubricates but also cleans, seals, cushions, prevents rust, and dissipates heat. It is often referred to as the 'lifeblood' of the car. Engine oil consists of base oil and additives. Over time, all performance aspects of engine oil degrade, so it needs to be replaced regularly. Prolonged use without changing the oil can accelerate engine wear. When selecting engine oil, consider the following: Choose oil based on the engine's requirements. There's no need to use high-grade oil in engines with lower requirements, nor should you use low-grade oil in engines with higher demands. Opt for multi-grade oil whenever possible. Multi-grade oil is economical, long-lasting, and efficient, providing better engine protection. Due to its characteristics, multi-grade oil may appear darker and have lower oil pressure compared to conventional oil, which is normal.

12

2

Share

What does 5w40 mean?

Why does a manual transmission car shake when starting?

How to Quickly Pass the Driving License Theory Test?

What to Do When the Exhaust Pipe Takes in Water While Parked?

What are the gear positions of the Highlander?

How to Use Car Lights in Snowy Weather?

What is the Difference Between CH and CF Engine Oils?

What should you do when a motor vehicle overturns?

What does N mean in an automatic transmission car?

Will I get points deducted for driving at 135 km/h in a 120 km/h speed limit zone?

What is the fuel consumption of scooters?