What to Do When the Rear Wheel Falls into a Ditch?

Can Engine Oils Be Mixed?

Engine oils should not be mixed. Different types of oils contain different chemical substances, and mixing them may lead to accidents, posing significant safety hazards. It is advisable to avoid mixing oils whenever possible. Here are some precautions regarding adding engine oil to your car: 1. Pay attention to the timing of oil changes for your car. Under normal driving conditions for a new car, if synthetic oil is used, the oil can generally be changed every 10,000 kilometers, and in some cases, it can even be extended to 20,000 kilometers. 2. Choose the right engine oil. It is recommended to opt for multi-grade oils as they are economical, long-lasting, and efficient, providing better protection for the engine. If the engine is in good condition and the seasonal temperature is low, it is advisable to use oil with lower viscosity to ensure smooth oil flow. 3. The oil level should be slightly below the mark on the dipstick and not overfilled. Never let the oil level fall below the minimum mark, but adding too much oil, exceeding the upper limit on the dipstick, will increase the crankshaft's rotational resistance, reduce the engine's output power, and cause excess oil to enter the combustion chamber, leading to oil burning, blue smoke emission, and increased fuel consumption.

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What Causes Increased Car Noise?

Here are the main reasons for increased car noise: 1. Engine mount rubber aging: After prolonged use, the rubber material of the mounts becomes brittle and loses its noise-reducing function. 2. Car tire wear: Car tires are the most prone to wear. As tires and road surfaces gradually wear and age, the noise reduction and shock absorption effects of the tires diminish, leading to increased noise. 3. Shock absorber component aging: When shock absorber parts age, their damping effect decreases, causing passengers to feel more vibrations and noise inside the car. 4. Low oil viscosity: High-viscosity oil maintains the lubrication of engine components, but after prolonged use, the oil viscosity decreases, reducing its lubrication and anti-wear properties, which in turn increases engine noise. 5. Seal aging: The external sealing of the car is crucial for noise control. If engine noise is heard from the bottom of the car during a noise source inspection, the seals should be checked.

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How to Diagnose Clutch Slippage Faults?

Here are the symptoms of clutch slippage: 1. When starting the car, fully releasing the clutch pedal does not allow the car to start or makes starting difficult. 2. During acceleration, the vehicle speed does not increase with the rise in engine RPM, and the engine's power is not fully transmitted to the drive wheels, resulting in weak driving performance. 3. When fully loaded or going uphill, slippage becomes more noticeable, and in severe cases, a burnt smell from overheated friction linings may be emitted. Here are the possible causes of clutch slippage: 1. The clutch pedal free play is too small or nonexistent, causing the release bearing to constantly press against the diaphragm spring, keeping the pressure plate in a semi-engaged state. 2. Reduced elasticity of the diaphragm spring. 3. Excessive wear of the friction disc leading to thinning, surface hardening, oil contamination, or exposed rivets. 4. Loose connecting bolts between the clutch and flywheel. 5. Improper adjustment of the release levers.

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How to Check Tire Date?

Here are the methods to check the tire date: 1. On the outside of the tire, there is a set of numbers on the sidewall. The last four digits of this marking provide information about the production date. It consists of four digits "AABB," where the first two digits "AA" indicate the week of the year, and the last two digits "BB" indicate the year. 2. For example, if the last four digits of the DOT marking on the tire are 0807, it means the tire was produced in the 8th week of 2007, which is around late February 2007. Similarly, a marking of 1606 indicates production in the 16th week of 2006, which is around mid-April 2006.

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Symptoms of Worn Ball Joints in Cars

Here are the main symptoms of damaged ball joints in cars: 1. Abnormal noises when driving on uneven roads. 2. Unstable driving with left-right swaying. 3. Excessive steering play, brake pulling, and steering failure. Here is more information about car ball joints: 1. The function of car ball joints is to transmit power between different axes through spherical connections, providing multi-angle rotation. This allows smooth steering of the steering mechanism, reducing vibration and ensuring smooth steering. 2. Car ball joints include outer ball joints and inner ball joints, equivalent to the front axle and steering knuckle. The ball joint consists only of the ball head and steel cup, with the steel cup divided into inner and outer steel cups. The inner ball joint is fixed on the front axle, while the outer ball joint fits over the inner ball joint and can rotate back and forth.

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How to Identify a Car's Production Date?

Here are the methods to identify a car's production date: 1. Below the B-pillar on the passenger side, open the car door to see the production date. This nameplate only specifies the year and month and includes the vehicle's VIN. 2. The car's production date is written on the certificate of conformity that comes with the new car, located in the upper right corner. The date here can be specified down to the year, month, and day. 3. When a new car arrives at the dealership, there will be a paper nameplate on the front windshield near the driver's seat. This nameplate includes the VIN and the MIIT fuel consumption data. If the bottom of the paper nameplate specifies the year, month, and day, the production date on it can be used as a reference. If it only specifies the year and month, it cannot be used as the production date.

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What to Do When the Rear Wheel Falls into a Ditch?

Can Engine Oils Be Mixed?

What Causes Increased Car Noise?

How to Diagnose Clutch Slippage Faults?

How to Check Tire Date?

Symptoms of Worn Ball Joints in Cars

How to Identify a Car's Production Date?

Maximum 4000 RPM When Revving in Neutral

Why Does a New Car's Brake Make Abnormal Noises?

Reasons for Fuel Pump Failure

How many meters apart are the white semicircular distance confirmation markings?