Will there be any impact if too much antifreeze is added to a private car?

[KimberlyMarie]

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.