California’s relentless summer heat can take a serious toll on your vehicle, and your engine’s cooling system is its first line of defense. While most drivers keep up with oil changes and tire rotations, coolant maintenance is often overlooked—until it’s too late. Low or degraded coolant can lead to overheating, decreased fuel efficiency, and even major engine damage. If you drive in extreme temperatures, are you sure your cooling system is ready to handle the heat?
What Does Engine Coolant Do
Coolant, also known as antifreeze, is a liquid that circulates through your engine to absorb excess heat and regulate temperature. It prevents overheating in the summer and protects against freezing in the winter. In California’s hot climate, its primary function is to keep your engine from reaching dangerously high temperatures.
Here’s how the coolant system works:
- The coolant absorbs heat from the engine.
- It travels to the radiator, where it is cooled down by airflow.
- The cooled fluid then recirculates to maintain proper engine temperature.
Without enough coolant, or if the coolant is old and contaminated, the engine can overheat quickly, leading to serious damage such as a blown head gasket, cracked cylinder head, or even complete engine failure.
Coolant Is Even More Important in Hot Weather
California’s extreme temperatures put additional strain on your vehicle’s cooling system. When temperatures rise, your engine works harder, and the cooling system must function efficiently to keep temperatures stable.
Some reasons why coolant is even more critical in hot weather include:
- Increased evaporation – High heat can cause coolant to evaporate faster, leading to low coolant levels.
- Added engine stress – Stop-and-go traffic, uphill driving, and extended idling can make engines run hotter than usual.
- Heat-related component wear – Prolonged exposure to heat can weaken hoses, seals, and the radiator, making them more susceptible to leaks.
Signs Your Car Cooling System Needs Attention
Even if your car seems to be running fine, coolant-related issues can develop over time. Knowing the warning signs can help prevent overheating and potential engine damage.
1. Low Coolant Levels
If your coolant reservoir is frequently low, it could indicate a leak in the system. Regularly checking the coolant level can help you catch issues before they worsen.
2. Overheating Engine
One of the most obvious signs of coolant trouble is an overheating engine. If your temperature gauge climbs too high or steam comes from under the hood, your cooling system may not be functioning properly.
3. Discolored or Contaminated Coolant
Healthy coolant is typically bright green, orange, pink, or yellow, depending on the type used in your vehicle. If it looks brown, murky, or has particles floating in it, it may be contaminated and in need of flushing.
4. Sweet Smell or Leaks Under the Car
Coolant has a distinct sweet smell, so if you notice this odor around your vehicle, it could indicate a leak from the radiator, water pump, or hoses.
How Often Should You Change Your Coolant
The recommended interval for a coolant flush is every 30,000 to 50,000 miles, but more frequent checks may be necessary in hot climates like Southern California. Factors such as driving conditions, stop-and-go traffic, and heavy engine loads can shorten the lifespan of coolant.
A professional coolant flush removes old, contaminated fluid and replaces it with fresh coolant, ensuring the system functions efficiently. If your car is approaching the recommended mileage or showing signs of overheating, it’s a good idea to schedule a coolant inspection and service.
TL Motors
In California’s extreme heat, maintaining your engine’s cooling system is crucial to avoid breakdowns and costly repairs. If your coolant is low, discolored, or overdue for a flush, our professionals at TL Motors in Covina, CA, can inspect your cooling system and keep your car running at the right temperature. Call us today to schedule your appointment!