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What causes a car not to start after being unused for a long time?

1 Answers

VonHarrison

07/29/25 12:10pm

Automotive coolant and antifreeze have the following differences: 1. Antifreeze has a freezing point and provides antifreeze effects, preventing the radiator from freezing in winter. Common antifreeze ratings include -16°C, -25°C, -35°C, and -45°C (used in extremely cold regions). 2. Coolant has a freezing point of only 0°C and is only suitable for use in southern regions or provinces where it does not snow in winter. A freezing point of 0°C means that if the local temperature drops below 0°C, coolant should not be used. Precautions are as follows: 1. If you are a car owner in the south using coolant and plan to drive to northern regions, you should switch to antifreeze before making the trip. 2. If antifreeze is not replaced in time, the radiator may freeze. For vehicles frequently traveling across different regions, using antifreeze is recommended.

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What does it mean when a car engine emits smoke?

Car engine smoke emission scenarios: 1. Black smoke indicates an overly rich air-fuel mixture and incomplete combustion, primarily caused by vehicle overload/engine overloading, insufficient cylinder pressure, low engine temperature, improper carburetor adjustment, clogged air filter, misfiring cylinders, or delayed ignition timing. 2. Blue smoke results from excessive engine oil entering the combustion chamber without complete combustion. Removing spark plugs will reveal severe carbon deposits. 3. White smoke occurs when fuel contains moisture, coolant leaks into cylinders, the engine is excessively cold, or unburned fuel forms mist/water vapor that exits with exhaust gases.

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What is the difference between dual-clutch and single-clutch in cars?

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Can I still drive if the vehicle prompts for an oil change?

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What is the meaning of the BMW logo?

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