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How to Distinguish Engine Oil Viscosity?

1 Answers
DelPiper
07/29/25 9:55pm
Engine oil viscosity can be distinguished by the following methods: 1. AB Series: For gasoline and light-duty diesel engines; 2. C Series: Catalyst-compatible engine oils; 3. E Series: Heavy-duty diesel engine oils. The functions of engine oil include: 1. Cooling and temperature reduction; 2. Sealing and leak prevention; 3. Cleaning and purification; 4. Shock absorption and buffering; 5. Lubrication to reduce wear; 6. Rust and corrosion prevention; 7. Component protection. Engine oil, also known as engine lubricant, is composed of base oil and additives. Base oil is the main component of lubricating oil, determining its fundamental properties, while additives compensate for and improve any deficiencies in the base oil's performance.
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What is a VW car?

Volkswagen is the German word 'VolksWagenwerk', meaning 'car for the people', with the VW in the logo being the first letters of the full name. Here is some relevant information about Volkswagen: 1. Volkswagen (German: Volkswagen) is an automobile manufacturing company headquartered in Wolfsburg, Germany, and is the core enterprise of the Volkswagen Group, one of the world's four largest automobile manufacturers. 'Volks' in German means 'people', and 'Wagen' means 'car', so the full name means 'people's car', often abbreviated as 'VW'. It is translated as 'Fusi' in Taiwan and 'Volkswagen' or 'Fushi' in Hong Kong, Macau, and mainland China, meaning 'the people's car'. 2. In 2012, the entire automotive group produced and sold over 9.07 million vehicles, with the Volkswagen brand alone exceeding 5.74 million. On November 14, 2013, the General Administration of Quality Supervision, Inspection and Quarantine announced that Volkswagen (China) Sales Co., Ltd., FAW-Volkswagen Automotive Co., Ltd., and Shanghai Volkswagen Automotive Co., Ltd. decided to recall some Volkswagen, Audi, and Skoda vehicles starting from November 25, 2013, totaling 640,309 vehicles (on the road). In October 2014, FAW-Volkswagen announced another recall of some new Sagitar and Beetle vehicles.
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How to Replace the Key Battery for Hyundai Cars?

To replace the key battery for a Hyundai car, follow these steps: 1. Prepare tools and battery: 1 flathead screwdriver, 1 car key that needs battery replacement, and 1 corresponding battery model. 2. Locate the round button on the side of the car key. Press this button with one hand while pulling out the mechanical key with the other hand. 3. Find the gap in the middle of the top end of the key and insert the flathead screwdriver: Hold the key with one hand and the screwdriver with the other; locate the gap in the middle of the top end of the key and insert the flathead screwdriver; pry the key up and down until a gap is created. If the key doesn't budge, gradually increase the force until it moves. 4. Install the new battery: Remove the key circuit board, gently push one side of the battery with your finger, and take out the old battery. Place the new battery with the positive side facing up into the battery slot, then gently push it until it is fully secured. 5. Reassemble the key: Cover the key circuit board back onto the key, align the two separated halves of the key properly, and press both sides of the key with your hands until the upper and lower parts are completely fitted together. Finally, insert the mechanical key back into the key slot.
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How to adjust the time on Peugeot 508?

Peugeot 508 time adjustment method: Press the SETUP button on the center console, then select display settings, and change the time. The Dongfeng Peugeot 508 is a mid-size sedan with a length, width, and height of 4826mm, 1855mm, and 1465mm respectively, a wheelbase of 2815mm, and front-wheel drive. In terms of appearance, the car's hood nose wings, combined with the gradient chrome trim and the surface feature lines of the hood, reveal the overall design concept. The concave and convex body lines complement the car's shape, creating a perfect blend of power and elegance. In terms of power, the car is equipped with two engines, one is a 1.6-liter turbocharged engine, and the other is a 1.8-liter turbocharged engine.
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What is the reason why the fuel gauge of BMW X3 does not reset after refueling?

The reason why the fuel gauge of BMW X3 does not reset after refueling: The fuel float inside the fuel tank may be affected by the pressure in the tank, or there might be an issue with the fuel level sensor, causing the reset to be relatively slow. It usually resets automatically within 3 to 5 hours after refueling. If it does not recover beyond this time, it may indicate a malfunction of the fuel level sensor inside the tank, requiring repair or replacement at an auto repair shop. The BMW X3 is an SUV model with dimensions of 4648mm in length, 1881mm in width, and 1661mm in height, and a wheelbase of 2810mm. In terms of power, this vehicle is equipped with three engines: a low-power version 2.0-liter turbocharged engine, a medium-power version 2.0-liter turbocharged engine, and a high-power version 2.0-liter turbocharged engine.
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What Causes the Handbrake Warning Light to Stay On?

If the handbrake warning light in your car remains illuminated, it may be due to forgetting to release the handbrake or not fully disengaging it, which triggers the warning light. After ruling out these possibilities, if the light persists, it is necessary to check the brake fluid, as leaks or insufficient levels can also cause the handbrake light to stay on. Should the handbrake light remain lit and be accompanied by vibrations or unusual noises when braking, it could indicate that the brake discs have worn thin or that foreign objects have entered the brake pads. This condition may also lead to reduced braking power, longer stopping distances, and a softer brake pedal feel. The braking system primarily consists of an energy supply device, control device, transmission device, and the brake itself. Its main functions are to decelerate or stop a moving vehicle, maintain a stable speed when descending slopes, and keep a stationary vehicle from moving.
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How to Determine if a Car's Control Arm is Broken?

Methods to determine if a car's control arm is broken: A broken control arm can cause the car's tires to wobble, leading to abnormal tire wear and increased noise. The control arm, also known as the swing arm, functions to balance and support the vehicle. When driving on uneven roads, the tires move up and down, which is facilitated by the movement of the control arm. The tires are mounted on the wheel hub, which is connected to the control arm via a ball joint. The control arm is connected to the subframe through a hinge sleeve at the front connection point of the subframe. The forces and impacts experienced by the wheels are transmitted to the vehicle body through this hinge sleeve. The hinge sleeve at the front connection point of the subframe is a potential area for cracking, meaning that in the event of an axle breakage, it is highly likely to occur at this hinge sleeve location.
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