Does it matter which antifreeze coolant I use?
As the owner of Kevin's Autos auto service, I've seen countless vehicles come through our doors over the years. One of the most common questions our customers ask is whether it really matters which antifreeze coolant they use in their car or truck. The short answer is yes, it does matter - the type of antifreeze coolant you choose can have a significant impact on the health and longevity of your vehicle's cooling system.
Understanding Antifreeze Coolant Types
There are several different types of antifreeze coolants available on the market, each with its own unique properties and recommended applications:
- Ethylene Glycol - This is the most common and traditional type of antifreeze coolant. It provides excellent freeze and boil protection, but can be corrosive to certain metals and materials over time.
- Propylene Glycol - A less toxic alternative to ethylene glycol, propylene glycol-based coolants are generally safer for the environment and less harmful if ingested. However, they may not provide as robust freeze and boil protection.
- Organic Acid Technology (OAT) - OAT coolants use organic acids instead of traditional inorganic additives to provide corrosion protection. They tend to have a longer service life than conventional coolants.
- Hybrid Organic Acid Technology (HOAT) - HOAT coolants combine organic acids with some traditional inorganic additives, offering a balance of extended service life and compatibility with a wider range of materials.
Choosing the Right Coolant for Your Vehicle
When it comes to selecting the appropriate antifreeze coolant, it's important to consult your vehicle's owner's manual or speak with a qualified automotive technician. Different makes and models may have specific coolant requirements, and using the wrong type can lead to compatibility issues, reduced performance, and even damage to the cooling system. As a general rule, it's best to stick with the coolant type recommended by the vehicle manufacturer.
At Kevin's Autos, we always take the time to ensure our customers are using the correct antifreeze coolant for their vehicle. We can also provide guidance on proper coolant maintenance, such as flushing and refilling the system at the recommended intervals. By taking these steps, you can help extend the life of your vehicle's cooling system and avoid costly repairs down the road.
Frequently Asked Questions
Is universal antifreeze ok?
Because most coolants are OAT coolants, that means they are universally compatible with each other. So, despite the color or the recommendations, if a coolant says “universal,” it can be mixed or topped off with other universal coolants.
What is the correct coolant antifreeze for use in most vehicles?
The most common variety of liquid antifreeze is an IAT formula, or Inorganic Additive Technology. ZEREX™ Original Green is an IAT coolant that has been used for decades and is a formula proven to provide unsurpassed corrosion protection.
Is it OK to mix different types of antifreeze?
Mixing coolants of various types can have extensive and expensive consequences. As mentioned above, the mix can solidify, block your engine, and cause overheating, which can, in turn, cause the following problems: Degraded cylinder heads. Head gasket breakage.
Does it really matter what type of antifreeze I use?
In the end, as long as you are choosing a formula that is compatible with your vehicle, what antifreeze to use is largely dependent on your needs.
What do the different colors of coolant mean?
What colour do you need? Green coolant is the conventional coolant (Ethylene Glycol base) and is the most popularly used coolant. Red coolant typically has a base of Organic Acid Technology which is designed to be more suitable for aluminium radiators.
What happens if you accidentally mix green and orange antifreeze?
Clogging: The different acids in both coolants can cause them to react, creating a gel-like substance that can clog your car's radiator and cooling system components. Mixing them can cause the formation of sludge and other deposits that affects efficiency.
What happens if I put the wrong coolant in my car?
Using the wrong coolant can reduce cooling efficiency, leading to engine overheating and potential damage. Warranty Issues: Using an incorrect coolant may void the vehicle's warranty. Manufacturers often specify certain types of fluids to ensure optimal performance and reliability.
Can I just top up coolant?
To top up your engine's coolant, you can simply open the reservoir cap (be careful the engine is not too hot and use a cloth wrapped around the cap to open it, as there could be some residual pressure left in the system) and add to the fluid level – what you use to do this is very important though.
Can I put any antifreeze in my car?
Generally a 50/50 mix is recommended, but others say a 70/30 mix of antifreeze and water should be okay. There are a few mechanics who will say using straight antifreeze is just fine, but other vehicle experts will say pure antifreeze could cause some significant damage to your vehicle.
How do I know which coolant to use?
Your car's owner's manual provides a wealth of information. It will tell you what type of coolant is best to use in your vehicle.
