
There are two methods to check if the antifreeze is low: 1. Check the antifreeze warning light on the dashboard; 2. Observe the fluid level in the reservoir tank. The full name of antifreeze is antifreeze coolant, which refers to a coolant with antifreeze functionality. Antifreeze prevents the coolant from freezing and expanding in cold winter conditions, which could otherwise crack the radiator or damage the engine cylinder block or head. Antifreeze offers multiple benefits, including freeze protection in winter, boil-over prevention in summer, and year-round protection against scale and corrosion. Guidelines for selecting antifreeze: 1. Choose the freezing point based on the ambient temperature conditions where the vehicle is used. The antifreeze grade corresponds to its freezing point, which should be approximately 10 degrees Celsius lower than the local winter's lowest temperature. 2. Select antifreeze with rust prevention, corrosion inhibition, and descaling functions.

Checking the antifreeze level is quite simple. My usual car maintenance routine involves parking and turning off the engine first, ensuring it cools down completely—typically waiting three to four hours or overnight is safest. Then, pop open the hood and locate the transparent plastic expansion tank; most cars have a dedicated coolant reservoir marked with a label. The tank has MIN and MAX level indicators, and the fluid should sit between these marks to be considered normal. If it’s below the MIN line, it means the antifreeze is low. Never check when the engine is hot—I’ve seen inexperienced people get scalded by steam shooting out. If the level is low, top it up with the same brand and type of antifreeze; avoid mixing different colors or brands to prevent engine corrosion. Also, note that if the level drops frequently, there might be a leak in the radiator or hoses, requiring a professional inspection. Antifreeze maintenance is crucial, especially before winter—if the concentration is too low, it can freeze and crack the engine block.

In our household, I'm responsible for regularly checking the car, and inspecting the antifreeze level has become routine. After parking, wait for about an hour to let it cool down, then open the hood and locate the expansion tank - a transparent container with MIN and MAX level markers. The fluid level is clearly visible; if it's below MIN, it indicates insufficiency. Before topping up antifreeze, clean around the tank cap to avoid contaminating the cooling system. Always choose an antifreeze product matching the original color since different colors indicate varied formulations, and mixing them may cause chemical issues. Remember not to overfill - exceeding the MAX line increases engine pressure, which can be harmful. For regular maintenance, replacing antifreeze annually is safest; don't wait until cold weather to hastily check. This practice helps prevent engine overheating and catastrophic failures. If you notice foam or discoloration in the tank, it signals deterioration and requires immediate replacement.

As a young driver who frequently takes long trips, I know checking the coolant level is straightforward. After parking and turning off the engine, you must wait until it cools down completely, usually overnight is fine. Open the hood, locate the plastic reservoir with markings—most cars have MIN and MAX lines. If the level is between them, it's sufficient; if it's low, add coolant using a dedicated bottle, being careful not to exceed the limit. Remember, never open the cap when the engine is hot—it's dangerous and can cause burns. Check it every few months, especially before summer and winter, to prevent engine issues.

In daily vehicle maintenance, the key points for checking the coolant status are its level and safety. I wait for the car to cool down for a while until the engine is no longer hot to the touch before opening the cap. The expansion tank is usually located at the front of the engine bay, with clearly marked MIN and MAX lines. If the fluid level is below MIN, it indicates a need for replenishment. Before adding, ensure the engine is turned off and the surrounding area is clean. Use the same type of coolant and pour it in small amounts multiple times to prevent overflow. Additionally, regularly check the fluid level changes; if it drops rapidly, there may be a leak requiring professional inspection. Maintaining the coolant system can enhance engine longevity and save on repair costs.


