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What is the difference between 0W20 and 0W40?

1 Answers
ArielDella
07/30/25 5:35am
The differences between 0W20 and 0W40 are as follows: 1. Base viscosity differs: 0W40 oil has a higher viscosity than 0W20 oil, meaning that at the same temperature, 0W40 oil has much poorer fluidity compared to 0W20. 2. High-temperature shear resistance differs: 0W40 oil is superior to 0W20 oil, providing a stronger and thicker oil film. 0W-40 oil offers better high-temperature protection, as higher kinematic viscosity in oil results in better high-temperature shear resistance. The higher the high-temperature shear resistance of the oil, the better the stability of the oil film and the engine protection capability. If the oil film is torn due to insufficient strength during high-speed engine operation, it can lead to wear. Below is relevant content introduction: Oil selection: Since oil significantly affects the performance and lifespan of the engine, it is essential to strictly follow the vehicle's user manual to select oil of the same series, service grade, and viscosity grade.
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Should the Golf 6 1.4T use 92 or 95 octane gasoline?

Volkswagen Golf 6 1.4T should use 95 octane gasoline. The following is additional information: Engine oil selection for Volkswagen Golf: Due to the high working power of the engine in the Volkswagen Golf, the internal temperature of the engine is very high during operation. Therefore, using high-viscosity engine oil can protect the internal components of the engine and provide cooling and lubrication functions. Engine oil is a crucial factor affecting engine performance and lifespan. The vehicle is factory-filled with a special high-quality multi-grade viscosity oil, which can be used year-round except in extremely cold weather. Changing the engine oil: Like other components of the car, engine oil is constantly evolving. Volkswagen authorized dealers are up-to-date with the latest developments and technical data regarding automotive fluids. It is recommended to have the engine oil changed by a Volkswagen authorized dealer.
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How many kilometers can a Mazda6 drive when the fuel tank light is on?

When the fuel tank light of a Mazda6 is on, it can drive for 40-50 kilometers. Issues when the fuel tank light is on: A continuously illuminated fuel light may indicate insufficient fuel in the tank or a sensor malfunction. The indicator lights on the car's dashboard display both the vehicle's working status and potential fault locations (especially those signaled by flashing lights), including issues like doors not being properly closed. Solutions for the fuel tank light under different conditions: Under normal circumstances, when the fuel indicator light comes on, it's advisable to plan for refueling, especially during long-distance travel on highways. Failing to refuel in time and missing a gas station can significantly disrupt your journey. If the light remains on after refueling, it may indicate a fault in the tank's sensor component or wiring, and professional inspection and repair should be sought immediately. Driving with a continuously illuminated fuel light, which prevents accurate judgment of fuel levels, poses a risk during travel and should not be taken lightly.
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What are the specifications of the Mazda 6 OEM wheels?

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What does BMW b48a20c mean?

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What is the fuel tank capacity of the Mazda 8 in liters?

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