Will there be any impact if too much antifreeze is added to a private car?
2 Answers
After adding too much antifreeze to a private car, there will be the following two impacts: 1. During driving, it will expand due to heat and then be discharged from the pressure relief valve, leaving stains in the water tank. Of course, the best solution is to extract the antifreeze that exceeds the water level. 2. Many inferior antifreeze products are corrosive. Adding too much of such antifreeze can damage equipment like wires in the engine compartment and even corrode the water tank, allowing it to flow into the engine. Below is some information about antifreeze: 1. The full name of antifreeze should be antifreeze coolant, meaning coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and cracking the radiator or freezing and damaging the engine cylinder block or head when the car is parked in cold winter. 2. Many people think that antifreeze is only used in winter, but in fact, antifreeze should be used all year round.
I've seen it several times, adding too much coolant can really cause problems. My car is a family sedan, and during the last maintenance, the mechanic accidentally overfilled it. Within a few days of driving, I noticed coolant starting to overflow, leaking everywhere. After checking, I learned that the cooling system has a fixed capacity. Overfilling the coolant can cause excessive internal pressure, and the seals can't handle it, leading to leaks. In severe cases, it can even damage the radiator or water pump, which can be expensive to repair. I recommend keeping an eye on the Max line when adding coolant and not exceeding it. Also, temperature changes can affect the fluid level—it's normal for the level to be slightly higher when the engine is hot, but overfilling is risky. At best, it can contaminate the engine bay, and at worst, it can reduce cooling efficiency and cause the engine to overheat. I always pay extra attention to this when checking my car—prevention is key.
