The Ultimate Guide to Car Coolant Function

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Mustafa Karim
2025-03-23
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I. Emergency Car Coolant Handling GuideII. Analysis of the Core Functions of Car CoolantIII. 2025 Car Coolant Selection RecommendationsIV. Car Coolant Maintenance Cycle and Common MistakesFrequently Asked Questions (FAQ) About Car Coolant

Maintaining the correct level and quality of car coolant is paramount for vehicle longevity and performance, especially in the extreme heat experienced in the UAE. In 2025, understanding the vital functions of car coolant and adhering to proper maintenance schedules can save you from significant engine damage and ensure your vehicle runs smoothly.

I. Emergency Car Coolant Handling Guide

When the Dashboard Temperature Warning Light Illuminates

  1. Immediately turn off the air conditioning system to reduce engine load. This minimizes the heat generated by the engine.

  2. Keep the engine running at idle for 3 minutes to help dissipate heat. This allows the cooling system to work and potentially lower the temperature.

  3. Check the car coolant level in the reservoir tank. This should always be done when the engine is cold to avoid burns from hot fluid.

Steps for Temporarily Adding Car Coolant

① Mix distilled water with the existing car coolant in a 1:1 ratio (this is an emergency solution only). Using distilled water helps prevent mineral buildup in the cooling system.
② Never mix car coolant of different colors. Different colors often indicate different chemical compositions that may react negatively when mixed.
③ Thoroughly replace with regular product within 24 hours. This ensures the correct formulation and protection for your engine.

II. Analysis of the Core Functions of Car Coolant

Temperature Regulation System (Thermal Management)

  • Stabilizes engine temperature within the optimal range of 90-110°C. This ensures efficient combustion and prevents overheating.

  • Has a boiling point of up to 129°C (compared to ordinary water's 100°C). This high boiling point is crucial for preventing boil-over in the UAE's hot climate.

  • Has a freezing point of -35°C (special formula for UAE specifications). While freezing is less of a concern in the UAE, this ensures the car coolant remains liquid and functional in the cooler winter months or if driving to colder regions.

III. 2025 Car Coolant Selection Recommendations

Comparison of Mainstream Technical Specifications for Car Coolant Selection

  • Inorganic Acid Technology (IAT): Traditional green/yellow, requires replacement every 2 years. This type is often found in older vehicles.

  • Organic Acid Technology (OAT): Orange/red, has a lifespan of 5 years. OAT coolants offer better corrosion protection for modern vehicles. Many newer models in the UAE, like the Toyota Camry 2023, use OAT coolant.

  • Hybrid Organic Acid Technology (HOAT): Blue-green, offers the best compatibility. HOAT coolants combine the benefits of both IAT and OAT and are suitable for a wide range of vehicles.

Features of Car Coolant with Special Formula for the UAE

  • Enhanced ethylene glycol concentration (55%-60%). This higher concentration provides better protection against boiling in the extreme heat of the UAE.

  • Addition of silicate buffers. Silicates help protect aluminum engine components from corrosion, which is crucial in the humid coastal regions of the UAE.

  • 40% improvement in anti-evaporation performance. This is vital in the UAE's desert climate where coolant can evaporate quickly.

IV. Car Coolant Maintenance Cycle and Common Mistakes

Professional Maintenance Schedule for Car Coolant

  • Check the pH value every 12 months (ideal range 7.5-11). A change in pH can indicate contamination or degradation of the car coolant.

  • Replace the radiator cap every 30,000 kilometers. A faulty radiator cap can affect the cooling system's pressure and efficiency.

  • Perform a full system flush every 5 years or 100,000 kilometers. This removes old car coolant and any accumulated debris or contaminants.

High-Frequency Incorrect Car Coolant Handling Warnings

✘ Directly adding tap water. Tap water contains minerals that can cause scaling and corrosion in the cooling system. For instance, using tap water in a Honda Civic 2022 for an extended period can lead to radiator clogging.
✘ Mixing different brands of car coolant. Different brands may use incompatible chemical formulations, leading to reduced effectiveness and potential damage.
✘ Ignoring cracks or leaks in the reservoir tank. Even small leaks can lead to a significant loss of car coolant, causing the engine to overheat. Regularly inspect the reservoir, especially before long drives from Abu Dhabi to Al Ain during the hot summer.
✘ Using pure water for cooling in summer. While it might seem intuitive, pure water has a lower boiling point than car coolant and doesn't offer the same level of corrosion protection. Many car owners in Sharjah have learned this the hard way after experiencing engine overheating.

By understanding the multiple functions of car coolant, car owners can not only avoid the risk of major engine repairs but also enhance their vehicle's reliability in high-temperature conditions. It is recommended to choose a dedicated car coolant certified by GCC standards and establish a habit of regular checks to keep your car in optimal condition.

Frequently Asked Questions (FAQ) About Car Coolant

Q1: How often should I completely replace the car coolant in my vehicle in the UAE in 2025?
A1: In the UAE in 2025, it is generally recommended to completely replace your car coolant every 2 to 5 years, depending on the type of coolant used (IAT, OAT, or HOAT) and the manufacturer's recommendations. Given the harsh climate, it's wise to err on the side of caution and consider replacing it every 3 years or as per your vehicle's service manual, whichever comes first.

Q2: What type of car coolant is best suited for the extreme heat of the UAE in 2025? Should I look for specific certifications or specifications?
A2: For the extreme heat of the UAE in 2025, it is best to use a car coolant specifically formulated for high temperatures, typically with an enhanced concentration of ethylene glycol (55%-60%). Look for coolants that meet GCC standards and mention suitability for hot climates or tropical conditions on the packaging. Brands like Prestone and Valvoline offer formulations suitable for the region.

Q3: Can I mix different colors of car coolant if I'm in an emergency situation in the UAE in 2025?
A3: While it's generally advised against mixing different colors of car coolant due to potential incompatibility of their chemical compositions, in a dire emergency in the UAE in 2025, adding a different color of coolant is better than letting your engine overheat. However, as soon as possible, you should have the entire cooling system flushed and refilled with the correct type and color of car coolant.

Q4: My car's temperature gauge is fluctuating more than usual in the UAE heat in 2025. Could this be a car coolant issue? What other problems could cause this?
A4: A fluctuating temperature gauge in the UAE heat in 2025 could indeed indicate a car coolant issue, such as low coolant levels, air pockets in the system, or a failing thermostat. Other potential causes include a malfunctioning water pump, a clogged radiator, or a faulty temperature sensor. It's recommended to have your cooling system inspected by a professional mechanic to diagnose the exact cause.

Q5: Are there any specific car coolant maintenance tips that are particularly important for UAE residents who frequently drive in desert or off-road conditions in 2025?
A5: For UAE residents who frequently drive in desert or off-road conditions in 2025, it's particularly important to regularly check your car coolant level before and after such drives, as the engine works harder in these conditions. Also, ensure your radiator is free of debris and that there are no leaks in the cooling system hoses, which can be more susceptible to damage in rugged terrain. Consider a coolant with enhanced anti-boil properties for added protection.

Read more:

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Mustafa KarimMustafa Karim
Chief editor information:

Mustafa Karim, having been deeply involved in automotive research and development for over ten years. He is fond of Japanese cars, and their precise and energy-efficient features have influenced him. In his spare time, he loves Japanese anime and kendo, drawing inspiration from them for control system research and development. He also often shares cutting-edge automotive knowledge on platforms, contributing to industry innovation and adding strength to automotive development with his expertise.

2025-03-23
376
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