Does adding too much car antifreeze have any impact?

[SanQuinn]

Adding too much car antifreeze does have an impact. The effects are: during the use of the car, it will undergo thermal expansion and overflow stains from the pressure relief valve. The function of car antifreeze is: to prevent the coolant from freezing and cracking the radiator or damaging the engine cylinder block or cover when the car is parked in cold winter. The method of replacing antifreeze is: 1. Unscrew the radiator cap to drain the antifreeze; 2. Let the engine idle and inject clean water until the radiator discharges clean water; 3. After the clean water has drained, close the water valve; 4. Add new antifreeze so that the liquid level is between the max and min water level marks; 5. Cover the cap and let the engine idle for two or three minutes. The precautions for using car antifreeze are: 1. Try to use the same brand of antifreeze; 2. When adding, confirm that the product is within its validity period; 3. Avoid diluting it with water; 4. If a large amount of particle precipitation appears, it indicates that the antifreeze has deteriorated and can no longer be used.