
Coolant can be added directly. Below is an introduction to the functions of coolant and precautions for replacement: Functions of automotive antifreeze: Another name for automotive antifreeze is coolant, which helps lower the engine's temperature. Since the engine generates a large amount of heat during operation, 60% of this heat is dissipated into the surrounding space through the cooling system. Water and methanol-based coolants have low boiling points and are prone to boiling. If the vehicle operates under conditions where the coolant boils, even for a short period, it can cause engine damage or even failure. Precautions when replacing antifreeze: It is essential to use the same type of antifreeze as the original. Different types of antifreeze have varying chemical compositions, and mixing them can lead to sedimentation and crystallization. Additionally, the cooling effect of the antifreeze may be reduced. Therefore, it is necessary to use the same type of antifreeze as the original.

I've been driving for over 20 years, and it's true that coolant can be added directly, but it's not as simple as just topping it off. The cooling system requires maintenance. You must wait until the vehicle has completely cooled down before checking the expansion tank's fluid level - opening the cap when the engine is hot can be extremely dangerous as steam may erupt and cause burns. When adding coolant, it's crucial to use the same type and color as the existing fluid. For example, if your system uses green ethylene glycol-based coolant, you must never mix in red coolant. Different formulations can chemically react when mixed, potentially corroding pipes or clogging the system - I once mixed them and nearly destroyed my engine. If the level is below the minimum mark, add slowly and don't overfill. If you find yourself constantly needing to top up, there's likely a leak in the system that requires immediate professional inspection. Regular coolant condition checks are essential, with complete replacement typically needed every 2-3 years to maintain proper antifreeze and anti-boil properties for engine protection.

As a novice car enthusiast, I often delve into these little tips. Adding coolant is straightforward and can be done in just a few simple steps. First, after the car has cooled down, open the expansion tank cap to check the fluid level. If it's too low, top it up with the same type of coolant—don't mix brands, as differences in formulations can lead to corrosion or sedimentation issues. Don't rush when adding the fluid; pour it slowly to ensure it doesn't exceed the maximum level. I once tried to cut corners by adding coolant while the engine was hot and ended up with a small blister on my hand from the splash—now I've learned to wait until it's completely cooled. Another point is that if you frequently need to top up the coolant, it could indicate a leak or aging seals, and it's best to have a professional check the undercarriage hoses. A quick glance at the coolant's color and level before driving can prevent future issues, keeping the engine cool and running smoothly.

In daily car usage scenarios, it's safe and straightforward to top up low coolant levels. After the vehicle has been parked and cooled down for a while, unscrew the expansion tank cap. If the fluid level is below the minimum mark, pour in some of the same type of coolant to avoid mixing different types, which could cause system damage. When adding, avoid pouring directly from a full container to control the flow and prevent spills that could lead to slipping or environmental contamination. The cooling system is crucial for engine longevity. Occasional top-ups are fine, but frequent refills indicate potential leaks that require prompt inspection and repair. Regular maintenance helps save money and hassle.


