Antifreeze, also known as coolant, is a vital fluid for your car’s engine. It regulates temperature. It prevents freezing in cold weather. It also prevents overheating in hot weather. It’s a mixture of ethylene glycol or propylene glycol and water. This mixture has a lower freezing point and a higher boiling point than water alone. Therefore, it protects your engine in extreme temperatures.
It is very important to check your antifreeze levels regularly. Low levels can lead to serious engine damage. This damage can be very expensive to repair.
Types of Antifreeze
There are several types of antifreeze available, each with different formulations and intended for specific vehicles. Selecting the right type is crucial for optimal performance and longevity.
Common Types:
- IAT (Inorganic Additive Technology): Older, green-colored antifreeze. It needs to be replaced more frequently.
- OAT (Organic Acid Technology): Typically orange or red. It has a longer lifespan. It is often used in newer vehicles.
- HOAT (Hybrid Organic Acid Technology): Yellow or blue. It combines the benefits of IAT and OAT.
- P-OAT (Phosphated Organic Acid Technology): Commonly found in Asian vehicles.
Important: Never mix different types of antifreeze. This can lead to chemical reactions. These reactions can damage your cooling system. Always consult your vehicle’s owner’s manual to determine the correct type of antifreeze for your car.
How to Check Your Antifreeze Level
Checking your antifreeze level is a simple but important maintenance task. It helps prevent costly engine repairs. Here’s how to do it:
- Locate the Coolant Reservoir: It’s usually a translucent plastic container. It has markings for “Min” and “Max” levels. It is often near the radiator.
- Check the Level: The coolant level should be between the “Min” and “Max” lines.
- Inspect the Coolant: Look for any signs of rust, sediment, or an oily sheen. These indicate contamination.
- If Low, Add Coolant: Use the correct type of antifreeze. Mix it with distilled water if you’re not using a pre-mixed solution.
If you notice a significant drop in coolant level, or if the coolant appears contaminated, have your cooling system inspected by a qualified mechanic. There may be a leak or other underlying issue.
FAQ: Antifreeze Questions Answered
How often should I change my antifreeze?
The frequency of antifreeze changes depends on the type of antifreeze used and your vehicle’s manufacturer recommendations. Generally, IAT antifreeze should be changed every 2 years or 30,000 miles, while OAT and HOAT antifreeze can last up to 5 years or 100,000 miles. Always refer to your owner’s manual for specific guidelines.
Can I use tap water to mix with antifreeze?
No, it is strongly recommended to use distilled water when mixing with antifreeze. Tap water contains minerals and impurities that can cause corrosion and scale buildup in your cooling system. Distilled water is pure and free of these contaminants.
What happens if I don’t change my antifreeze?
Old or contaminated antifreeze can lose its protective properties, leading to corrosion, overheating, and freezing. This can cause serious damage to your engine, radiator, water pump, and other cooling system components. Neglecting antifreeze changes can result in expensive repairs.
Is antifreeze toxic?
Yes, antifreeze is highly toxic to humans and animals. It has a sweet taste that can be attractive to pets and children. Ingestion can cause serious health problems and even death. Store antifreeze in a secure location and clean up any spills immediately. If you suspect someone has ingested antifreeze, seek immediate medical attention.
