What happens if you put concentrated antifreeze in your car?

Asked By: Cain Foulkes | Last Updated: 9th February, 2020
Category: automotive green vehicles
4.6/5 (5,565 Views . 21 Votes)
Concentrated engine coolant (ethylene glycol) has poor heat transfer abilities. After it gets hot, it will not effectively transfer heat from the engine block. The radiator and fan will not be effective in expelling the heat transfer to the atmosphere. In heavy/slow traffic the engine will overheat.

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Hereof, what happens when you put straight antifreeze in your car?

In fact, pure antifreeze will freeze at a temperature not much below where water does. That being said, running straight anti-freeze in very hot climates increases the risk of heat related damage to the motor as the fluid will not as efficiently rid the system of heat.

Similarly, what happens if you use 100 percent antifreeze? 100 anti-freeze means the engine will run hotter and will freeze at a higher temperature. Visit mrtexas's homepage! Re: What happens if you use 100% antifreeze? Pure Ethylene Glycol BOILS at 387.1 Degree fahrenheit, and freezes at 8.8 degrees F.

Besides, is it OK to put straight antifreeze in your 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.

Do you have to dilute concentrated antifreeze?

Antifreeze is often available pre-diluted. But if you obtain concentrated antifreeze, always dilute it with water before adding it to a cooling system. Adding the right amount of water provides the needed protection against both freezing and boiling over.

36 Related Question Answers Found

Can you use water instead of coolant?

Coolant/ Water Mixture, Not Just Water
The short answer is that it's a bad idea to pour pure water into your radiator, no matter what your climate conditions are. A proper coolant mixture is essential to the proper operation of your engine's cooling system and to its long life.

Does the color of coolant matter?

The truth is, color is not a reliable predictor for what type of coolant you have. For example, OAT coolants are usually orange, yellow, red or purple. Then the older IAT coolant is green. Coolants that manufacturers sell can confuse matters even more, like Honda's blue coolant.

What's the difference between pre diluted and concentrated antifreeze?

Adding Water To Antifreeze
"Full-strength" or "Concentrated" antifreeze has not been pre-diluted with water, so you must do so before using it. Antifreeze that's been pre-mixed with water will always state that fact on the label clearly.

What happens if you use undiluted antifreeze?

Increasing the proportion of antifreeze (e.g. 30:70) does not lower the freezing point any further. On the contrary, undiluted antifreeze freezes at around –13°C and no longer dissipates sufficient engine heat at temperatures above 0°C. This would cause engine overheating.

How cold is antifreeze good for?


That's where antifreeze comes in. When mixed in equal parts with water (50/50), antifreeze lowers the freezing point to -35 degrees F and raises the boiling temperature to 223 degrees F. Antifreeze also includes corrosion inhibitors to protect the engine and cooling system against rust and corrosion.

How do you know when you need Antifreeze?

Rather than open the cap on the radiator, just check to see whether the liquid reaches the “Full” line on the side of the coolant reservoir shown here. It's part of the coolant recovery system. If the liquid doesn't reach the “Full” line, open the bottle and add a 50/50 mix of water and coolant until it does.

How does antifreeze prevent overheating?

Antifreeze, also known as coolant, is one such product. A mixture of chemicals and water, antifreeze helps ensure that the liquid in our radiators doesn't freeze in the winter or boil over in the summer (overheating the engine), and in doing so, it protects our engines from damage year-round.

What happens if you put too much antifreeze and not enough water?

Having too much water will not cool the engine as well as a 50-50 mix, and having too much antifreeze could cause your water pump to fail. Since antifreeze is much thicker than water, your water pump has to work twice as hard to pump pure antifreeze than it does a 50-50 mix.

What happens when you put the wrong coolant in your car?

Using the wrong engine coolant can gradually lead to corrosion and damage to the water pump, radiator, radiator hoses and cylinder gasket. This can lead to damage to the engine in the worst case.

Does a car run cooler with water or antifreeze?


Water DOES cool better, but only to 212 F (boiling point). Your C5 must actually cool past 236 F, so you HAVE to use coolant. Coolant also protects metals and lubricates the water pump. DO NOT RUN JUST WATER !

Can too much antifreeze make a car overheat?

Too much coolant can cause significant problems to your vehicle. Overheating, as previously described, corrosion, water pump failure and increased engine wear. In some instances, for example in very moist and hot temperatures, lack of coolant can also cause your engine to overheat.

Can you run straight water in your radiator?

Well, that's not true. Water isn't the cause of overheating. Your coolant mixture (of whatever proportion) and radiator work together to get rid of the heat. If it's not hot, you won't overheat.

What percentage of antifreeze should be in water?

The most common ratios used are 70 percent water to 30 percent antifreeze for very warm parts of the country, but in colder areas a safer ratio – and the one most manufacturers recommend – is 50:50 antifreeze to water.

How can you tell if coolant is premixed?

Some coolants are premixed, so check the bottle to see whether you need to add water or just use it as-is. Use the coolant colour code. Coolant is usually red, green, blue, or yellow. If it looks colourless, looks rusty, or has things floating around in it, flush your cooling system and add new coolant.

Why do you have to add water to antifreeze?


Your car's cooling system needs coolant to keep it from overheating. Although water can be added to the radiator for this purpose, it's preferable to add a mixture of coolant and water because plain water can boil before the proper coolant will boil, causing your engine to overheat [source: pontiac].

What is the best antifreeze?

Here's 5 Best Engine Antifreeze and Coolants
  1. Engine Ice TYDS008 High-Performance Car Coolant.
  2. Prestone AF888 Dex-Cool Antifreeze.
  3. Zerex ZXG051 G-05 Vehicle Antifreeze.
  4. StarBrite Synthetic Premium Coolant and Antifreeze.
  5. Zerex Original Green Antifreeze/Coolant.

Is antifreeze necessary in summer?

In the summer antifreeze keeps the car's engine from overheating. Unlike gasoline and oil, there aren't any gauges that monitor your antifreeze level. Although you will see water used in the radiators of some race cars, coolant has additives that prevent rust and corrosion.