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What is the Difference Between Lubricating Oil and Grease?

1 Answers
VonIan
07/30/25 7:25am
1. Adhesion Differences: When the friction part is in a static state, grease can maintain its original shape without automatically losing due to gravity, nor will it slide off vertical surfaces or drip through gaps. This characteristic is particularly suitable for friction parts that operate intermittently or infrequently, areas where it is difficult to replenish grease, and open or poorly sealed parts. 2. Temperature Range Differences: The operating temperature range of grease is wider than that of lubricating oil. 3. Pressure Resistance Differences: Grease has a much stronger adsorption capacity on metal surfaces compared to lubricating oil and can form a relatively strong oil film to withstand higher working loads. This is due to the large amount of polar substances contained in grease.
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Why is water dripping from the exhaust pipe of the Huansu S5?

Water dripping from the exhaust pipe of the Huansu S5 is a normal phenomenon. After gasoline undergoes complete combustion, it produces carbon dioxide and water vapor. When the water vapor condenses, it forms liquid water, which is discharged through the exhaust pipe once it accumulates to a certain amount. In fact, water dripping from the exhaust pipe is a good sign, as it indicates that at least three conditions are met: 1. The air-fuel mixture ratio is correct: This indicates that the fuel supply system is in good condition. 2. The engine's cylinder pressure is normal: This means there is no internal wear in the engine block, and components such as cylinder liners and sealing rings are functioning properly. 3. The exhaust pipe temperature is low: This shows that the heat generated during combustion is concentrated within the cylinders, with only a small amount escaping into the exhaust pipe, indicating strong engine power output.
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Does the Sagitar come with daytime running lights?

The Sagitar comes standard with daytime running lights across all models. More information about daytime running lights is as follows: 1. Daytime running lights are a new type of signal lamp, mainly used in situations with poor driving visibility. 2. Installing daytime running lights can make the car look cooler, but their primary function is not aesthetics but to improve the vehicle's visibility. 3. Daytime running lights are pollution-free, noise-free, and free from electronic interference, utilizing advanced constant current control technology to provide uniform illumination, rich light color, and long-lasting stability. 4. Daytime running lights have a total power consumption of only 13.5W, with a luminous flux of 70-90LM and a color temperature range of 6000K-6700K.
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How to Properly Start a Manual Transmission Car?

After starting the car, press the clutch pedal completely with your left foot, preparing for the semi-clutch state. Use the palm of your right hand to push and shift the gear lever into first gear as the starting gear. With your left hand, lightly press the turn signal lever downward to activate the left turn signal, alerting vehicles in front and behind. Press and hold the button in front of the handbrake with your right hand, then lift the handbrake and press it down completely to release it. Lift your left foot to the semi-clutch state; when the car begins to vibrate slightly, it indicates sufficient power.
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How Many Chances Are There for the Subject 4 Exam?

There is no specific limit on the number of attempts for the Subject 4 exam, but there is a time constraint. The validity period of the driving skill test permit is three years. If the applicant fails to complete the exam within this period, the results of any previously passed subjects will become invalid. Below are relevant details: 1. Subject 4: Subject 4 separates the requirements related to safe and civilized driving from the original Subject 1, including safe driving skills in complex conditions and emergency handling knowledge, and places it after the "Subject 3" practical road driving test to further assess the candidate's traffic awareness. 2. Exam Content: The main content includes safe and civilized driving operation requirements, safe driving knowledge in adverse weather and complex road conditions, emergency handling methods for situations like tire blowouts, and post-accident handling knowledge.
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What are the differences between Audi Q8 and Q7?

Here are the differences between Audi Q8 and Q7: 1. Body dimensions: The length, width, and height of the Audi Q8 are 5006mm, 1995mm, and 1695mm respectively; the length, width, and height of the Audi Q7 are 5067mm, 1970mm, and 1731mm respectively. 2. Engine displacement: The Audi Q8 is equipped with a 3.0t turbocharged engine; the Audi Q7 is equipped with a 2.0t turbocharged engine. 3. Maximum horsepower: The Audi Q8 has a maximum horsepower of 340ps; the Audi Q7 has a maximum horsepower of 245ps. 4. Maximum power: The Audi Q8 has a maximum power of 250kw; the Audi Q7 has a maximum power of 180kW.
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How to Use Cruise Control in Honda Elysion?

Honda Elysion Cruise Control Usage: 1. Press CANCEL to cancel cruise control, MAIN to turn it off, and then press RES to resume cruise. 2. Before activating cruise control, set the cruising speed using the SET key. Precautions for Using Cruise Control in Honda Elysion 1. You need to manually apply the brakes for cruise control; adaptive cruise control will automatically brake. 2. Cruise control will be deactivated when you press the brake. However, the set speed remains and can be manually resumed. 3. Avoid using cruise control on winding, steep, bumpy, slippery roads, or in heavy traffic as it may be hazardous. Turn off cruise control in such conditions. 4. On downhill slopes, if the vehicle speeds up, either apply the brakes or turn off the cruise control.
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