Engine coolant (also known as antifreeze) is a specially formulated fluid that regulates engine temperature, prevents overheating, and protects the cooling system from corrosion and damage.
⚙️ What Does Coolant Do?
- Absorbs heat from the engine
- Transfers heat to the radiator for cooling
- Prevents freezing in cold conditions
- Protects against rust, corrosion, and electrolysis
- Lubricates components like the water pump
🧪 What Is It Made Of?
Coolant is a mixture of:
- Water (usually distilled) for heat transfer
- Antifreeze chemicals (ethylene or propylene glycol)
- Additives to prevent corrosion and scale buildup
👉 Typical mix: 50% coolant / 50% distilled water
⚠️ Signs of Bad Coolant
- Discoloured or rusty fluid
- Sludge or particles in coolant
- Overheating engine
- Frequent top-ups needed
- Sweet smell or visible leaks
🔧 Maintenance Tips
- Check coolant level regularly
- Use the correct type for your vehicle
- Never mix incompatible coolant types
- Replace coolant every 40,000 – 60,000 km
- Always use distilled water, not tap water
🔥 Why It’s Important
- Prevents engine overheating
- Protects against internal corrosion and electrolysis
- Extends life of radiators, hoses, and pumps
- Ensures efficient engine performance
⭐ our Tip
Old or incorrect coolant is one of the main causes of cooling system failure, regular maintenance keeps your system clean, protected, and efficient.
