Summer Passion: The Hotter It Gets, the Higher It Goes

Original by HonDaZhi, 日系車迷誌, Published Today

Blazing Summer Days

🔥 Summer Heat Calls for Cool Solutions!
Does your car's engine have what it takes to handle the summer heat? 🌞 Your coolant works tirelessly to keep things cool, but have you checked it lately?

🛠️ Why Replace Coolant Regularly?
✅ Prevent overheating during high-temperature drives
✅ Avoid sediment buildup during long-term storage
✅ Maintain engine performance and longevity

🚗 Keep your car happy and running smoothly with routine coolant replacement. 🌟 Don't let the heat win—drive with confidence!

We all crave the cooling comfort of air-conditioned rooms during scorching summer days.

But it’s not just you that needs cooling—your car needs it too.

For vehicles, temperature is both a blessing and a curse. The engine requires heat to operate efficiently, but too much heat can lead to failure. While achieving a high temperature isn’t difficult during summer, cooling things down requires sophisticated measures. Thankfully, cars are equipped with a well-designed cooling system to maintain optimal engine temperature. At the heart of this system lies "water." Specifically, coolant, which flows through the engine's water channels, absorbs heat, and dissipates it to control engine temperature.

💧 Hot Water Isn't Always a Good Thing!
There’s a Cantonese saying, “Hot water makes good tea,” but for cars, overheating is a serious problem.

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Why Coolant Replacement Matters
Most car owners rarely think about replacing their coolant. Unlike engine oil, which adheres to engine parts and gets dirty, coolant mainly circulates through water channels, seemingly requiring little maintenance. Does this mean coolant lasts forever? Absolutely not!

🚗 Coolant is the Core of the Cooling System
While it doesn't degrade as quickly as oil, coolant still needs periodic replacement to maintain efficiency.

According to technician Xiao Si, modern vehicles typically use chemical-based coolants, such as antifreeze, which are designed to minimize limescale buildup. However, even advanced coolants deteriorate over time due to constant heating and cooling cycles, especially during extreme conditions like high-performance driving or summer traffic jams. This breakdown reduces their effectiveness and lowers their boiling point, leading to overheating.

Regular Maintenance = Long Engine Life

🔧 Frequent Heat Exchange
Daily commutes in traffic jams expose coolant to constant high temperatures. With reduced airflow for cooling and heat from surrounding exhaust gases, coolant can degrade faster.

❄️ Extended Periods of Inactivity
When cars are left unused, sedimentation can occur in the coolant, forming deposits in the water channels. These deposits may block or restrict coolant flow, causing overheating or engine damage.

🛒 Coolant Options
Various affordable coolant products are available on the market. For optimal performance, replace coolant every 3–4 years or 40,000–50,000 km to avoid damage to the cooling system or engine.