Can I Use Bottled Water for Coolant

If your car has run out of coolant and you’re in a pinch, you might be wondering if it’s okay to use bottled water as a temporary replacement. The answer is yes, in most cases you can use bottled water as engine coolant. However, there are a few things you should keep in mind before using it.

First, make sure the water is clean and free of any contaminants that could damage your engine.

Second, only use distilled or deionized water; tap water can contain minerals that will clog up your engine’s cooling system over time.

Finally, don’t forget to add some coolant additive to the water; this will help protect your engine from corrosion and freezing.

  • Purchase distilled water from the grocery store
  • Pour the distilled water into your car’s radiator until it is full
  • Start up your car and let it idle for a few minutes so the coolant can circulate
  • Check the levels of coolant in your radiator periodically to make sure that it does not get low

Where to Buy Distilled Water for Coolant

If you’re looking for distilled water to use as a coolant, there are a few different places you can buy it. Here’s a quick rundown of where to find it: –

Your local grocery store: Many stores now sell distilled water in the bottled water section. This is usually the most affordable option.

Online retailers: There are many online retailers that sell distilled water. This can be a convenient option if you don’t have time to go to the store.

Auto parts stores: Auto parts stores typically sell distilled water for use in car radiators. This is probably the most expensive option, but it’s also the most convenient if you need it right away. So, there you have it!

A few different options for where to buy distilled water for coolant. Hopefully one of these will work for you and your needs.

What Happens If You Don’t Use Distilled Water in Coolant?

If you don’t use distilled water in your car’s coolant, the coolant will become less effective at transferring heat away from the engine. This can cause the engine to overheat, potentially leading to damage.

What Type of Water Do You Mix With Coolant?

Assuming you are talking about engine coolant, the water you mix it with should be distilled water. This is because regular tap water can contain minerals that can build up and cause problems in your engine cooling system. Distilled water is essentially just pure H2O without any of these impurities.

Can I Use Purified Water to Mix With Coolant?

Yes, you can use purified water to mix with coolant. However, it is not recommended because it can cause corrosion and scale buildup. Additionally, using distilled or deionized water will shorten the life of the coolant.

Water vs Coolant Temperature Test. Which One is Better


If your car’s coolant needs to be topped off, you may be wondering if you can use bottled water instead of the recommended antifreeze and water mixture. The answer is yes, you can use bottled water as a temporary fix. However, it’s important to note that using only water in your car’s cooling system can cause corrosion and other problems over time.

It’s always best to use the proper mix of antifreeze and water in your car’s cooling system.