Engine coolant isn’t something the is conveniently on many driver’s minds. Many don’t know exactly how it functions or the antifreeze is a component in ~ engine coolant. However, many do understand that if you don’t have enough engine coolant in your vehicle you room in because that a large problem. Engine overheating have the right to lead to some serious repairs, but you have the right to avoid this concern by thoroughly vetting the integrity and volume of the coolant in your car.

So exactly how much engine coolant, or antifreeze does your car hold and also how complete should it be? the will vary from car to vehicle, but you desire to store you coolant level topped turn off to the max to fill line at every times. Many cars have actually 5 liter engine coolant tanks. You can buy engine coolant in mass or by the 1 liter however, if you room topping increase a reservoir that isn’t empty, use the same brand the antifreeze as last time. Various coolants can mix to create dangerous chemicals the can cause engine damage.

You are watching: Is adding antifreeze to a car a chemical change

Engine coolant have to be drained native the radiator and replaced completely every 5 year or 100,000 miles on average.

Engine Coolant Volume


You can easily identify the engine coolant reservoir by trying to find the brightly fancy lid. In most vehicles it is yellow and has some kind of warning o the auto warning you that this compartment is pressurized when the engine is hot. It is essential to only open it when the vehicle is completely cool. Friend should have the ability to check your liquid level just by looking at the compartment together it is a translucent plastic and also inside you’ll find a brightly colored liquid.

For specifics on wherein your car’s coolant reservoir is, us encourage you to check your owner’s hand-operated which should have actually some form of visual representation of the place for her make and also model. Friend can also find this information online by utilizing a basic Google search.

How to examine your Engine Coolant Level


There room three usual varieties of engine coolant: castle are inorganic additive technology, necessary acid an innovation and lastly hybrid organic mountain technology.


This systems is outdated and is much less superior than its competitors nowadays. As there room now an ext effective alternatives on the engine coolant industry you generally only see inorganic additive technology in enlarge vehicles. 

If your vehicle uses this type of engine coolant that is necessary that you continue to be on optimal of flushing her system and replacing her coolant.

Inorganic additive an innovation coolant have to be changed every 24,000 miles or 2 years, whichever comes first. This is far much more frequent than more recent coolants that room on the market.


The next coolant we room going to talk about is much much more with the times and requires much less maintenance and also upkeep. That is increasingly well-known in vehicles more recent than the year 2000.

Organic acid technology coolant, i beg your pardon is widely offered by general Motors, only requirements to be changed every five years or 150,000 miles! the is a remarkable long size of time the you can go without replacing her coolant. This conserves these automobile owners time and also money involved with maintain procedures.

This variety of OAT coolant is traditionally orange or red in color.

It is obtained using fully neutralized essential acids and azoles and also these are the contents that do the fluid anti corrosive. This is additionally where the substance got its name.


Finally we have Hybrid necessary Acid an innovation which is a slim variation that Organic acid Technology. Both of these coolants have essentially similar replacement cycles 

How To peak Off her Car’s Coolant Levels

Most car owner’s are capable of topping off the coolant in your car. The is a simple procedure that just around anyone have the right to do. The most necessary thing come remember is to never ever touch the coolant reservoir once the automobile is hot. The compartment i do not care pressurized and also will shoot the end molten hot liquid. When the auto cools down it is fully safe to open the cap and also top turn off the fluid. Here are the steps you have to take:

Start v the appropriate coolant — as we disputed in the ar right over this one, there are various varieties the engine coolant and also your car will take it one in particular. In enhancement to making sure your auto is getting the right coolant, part coolant species should not be combined with others and can reason severe chemical reactions if mixed. Check your owner’s hands-on to verify the form of coolant your auto takes.Let the automobile cool off completely — friend risk significant burns from hot engine coolant if you carry out not allow the automobile cool the completely. Follow the instructions for diluting focused coolants — part coolants are sold in concentrated kind and will should be diluted prior to being included to the coolant reservoir. It’s crucial to examine the coolant label uncovered on the container for instructions top top this. In enhancement to focused coolants, some engine coolant is offered in a all set to use format and requires no diluting. Remove the cap and also funnel in the coolant — After permitting the engine come cool completely, remove the lid and add in the new coolant to the reservoir. Execute not overfill the tank together this system becomes pressurized when the vehicle is hot and needs the extra room for expansion. Replace the cap — as soon as you have finished pour it until it is full the tank just replace the cap. Be sure it is placed on tightly and also the reservoir is sealed.

A Brief arrival On how The Cooling mechanism Works (If friend Care)

Combustion engines found in car use energy from regulated engine explosions come propel castle forward. However, the typical combustion engine produces double as much power in warm as the does in energy used towards forward motion. 

If this heat is no displaced of appropriately it deserve to quickly destroy an engine. The job of her car’s cooling mechanism is to release that excess warm in a method that is for sure for you and your vehicle. Most modern vehicles use what is called a fluid cooling system. In this design, a water pump circulates coolant with your engine utilizing plumbing and also hoses come cool turn off the hot parts of your car’s engine. 


The now warmer (really freaking hot) fluid is then pumped into the radiator which functions to cool the fluid earlier down making use of the ventilation and also air flow from the front of your vehicle. The fluid is climate recirculated into the warm engine come cool it under further. The procedure repeats continuously as the automobile drives.

Your engine has actually a thermostat that actions the temperature of the coolant in the car. Once your vehicle is cold the thermostat will bypass the radiator and also send the fluid directly back into the engine till the engine is hot and is readily heating the coolant.

See more: Yeast Bread What Are The Three Classes Of Yeast Breads, What Are The Three Classes Of Bread

Why dare Have concerns With Overheating

Typically when your engine overheats the is most likely brought about by faulty or old engine coolant. The managed gasoline explosions in ~ the median car’s combustion engines is pushing 500 degrees and also this is far too hot for most of the engine parts. 

If over there isn’t sufficient coolant or the coolant is old and not functioning appropriately it may obtain hot sufficient to boil. Any type of boiling fluid is i can not qualify of acquisition on any much more heat till it becomes a vapor.

If the engine coolant start to boil it is no longer reliable at cooling down those metal engine components that are being exposed to those scalding warm temps. When that steel heats up previous a details temperature a number of things can happen and also none that them are a confident for her car. 

Typical repair after an engine overheats include warped cylinders, cracked head gaskets and busted water pumps. The repair average around $700 come fix just one of these issues. That is why the is imperative to ensure your engine coolant is not old and deteriorating.