How Much Coolant Loss Is Normal: Expert Advice | recipe mechanic (2023)

As much as a car needs fuel and engine oil to run, the importance of an automotive coolant cannot be ignored. A car's engine inevitably heats up due to internal combustion, the movement of various mechanical parts, the electrical coil that generates electricity, and the air conditioning system. Outside air enters the bonnet directly through the front grille or through special air intake systems, oriented to absorb as much air as possible and expel it from the engine to cool it down. Where air cools the outer surface of an engine, the inner workings of anThe engine temperature is maintainedand cooled with soda.

The main purpose of the coolant is to lower the engine temperature in the summer and increase the engine temperature in the winter when driving in extreme weather. The coolant level should be healthy; However, there are several reasons for the coolant level to drop. So a common question from a layman is how much coolant loss is normal and what to do to ensure it stays within your limits. Before that, let's see the possible causes of loss of coolant.

Read too: Car overheats when air conditioning is on and idle [Symptoms and Solutions]

Possible cause of coolant loss

A coolant leak causes the engine to overheat, resulting in engine failure and ultimately costing the car a lot of repairs. use the wrong thingtype of sodaor when driving a car with too low a coolant level in the reservoir, the engine will inevitably overheat. Depending on the condition of the vehicle's engine, external conditions, inattention or driver errors, there are different reasons for a coolant leak.engine component. These are unacceptable refrigerant losses; However, the evaporation rate of the coolant can sometimes be too low, which really confuses the car manager. Let's try to understand the reasons behind coolant loss.

How Much Coolant Loss Is Normal: Expert Advice | recipe mechanic (1)

head gasket

The most serious damage to a car engine is caused byhead gasket burst. The head gasket will be damaged due to insufficient coolant or the coolant level will drop at an alarming rate due to a worn head gasket. Coolant enters the engine's combustion chambers and burns, damaging the car's exhaust system and catalytic converter. After the head gasket is inflated, coolant enters the combustion chamber and causes damage to the engine block or cylinder head, resulting in damage.white smoke from the engine.

Rusty/broken tank cap

The evaporation rate of the refrigerant is quite low when theThe radiator cap is rustedor the rubber is worn out. The main purpose of the radiator cap is to maintain the coolant level and reservoir pressure to allow the coolant to flow through the hose at its normal rate. If damaged, the refrigerant tends to leak and the pressuredecreases inside the reservoir, resulting in a warning light on the dashboard. It is recommended to replace the reservoir cap after a few years and it needs to be inspected every six months for rust or damage to the rubber.

Damaged/worn radiator hoses

Radiator hoses are located very close to an engine and are exposed to high temperatures when the engine is running. OHoses can tear or burst, causing coolant to leak from the system. This results in a low coolant level warning and through continual leakage directly affects the head gasket causing engine malfunction.


aluminum coolerIt is a lightweight but practical component for managing hot and cold coolant temperatures and maintaining overall pressure throughout the engine compartment. The cooler takes a lot of beating due to the high temperatures in the region. Using water instead of coolant will cause corrosion on the radiator walls due to the inferior quality of the coolant. Corrosion leads to rust, which eventually burns holes in the surface of the radiator and causes a leak.

cooling system damage

In addition to the coolant itself, the engine has other components that are responsible for maintaining the temperature of the engine. Owater pump, thermostat housing and radiator fans top the list responsible for cooling the engine. The main purpose of the water pump is to ensure that coolant flows through the radiator, hoses and engine block. Failure of the pump to push coolant to the appropriate parts of the engine causes a series of chain events that result in loss of coolant and engine damage.

The thermostat housing is a coolant outlet typically located above the cylinder head or engine block. Coolant flows from the engine block through the thermostat housing to the radiator. In some cases, if the coolant is trapped in the closed position with the housing, this will result in choking and spilling coolant onto the floor under the vehicle.

The radiator fan is aimed directly at the radiator and could stall due to electric motor failure, which could cause the radiator temperature to rise, which could crack the cap or cause radiator leakage, resulting in loss of coolant.

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How Much Coolant Loss Is Normal: Expert Advice | recipe mechanic (2)

How much coolant loss is normal?

If there is a problem with the radiator or the engine, there will inevitably be a coolant leak, but there is a chance that the coolant level has run out and there are no traces of leaks. A small amount of refrigerant may evaporate as it is not a fully closed system due to the availability of a spill tank. However, over time, coolant flows inside the engine and radiator; Chemical agents lose their natural balance after exposure to high temperatures and evaporate without anysignificant leak. As the engine ages, more and more coolant evaporates. As a common calculation, it turns out that for every year an engine is started, the coolant level drops to 0.25% in 4 months, assuming the engine is running smoothly with no leaks or damage.

0.25" of an inch quarterly makes 1 inch for each year. This coolant evaporation occurs due to extreme temperatures, which turns the water element in the coolant into steam. So it is recommended to clean the radiator after a few years and at the same time , change the coolant to prolong the life of the engine.

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common questions

Let's address some frequently asked questions found on all Coolant blogs.

How Much Coolant Loss Is Normal: Expert Advice | recipe mechanic (3)

Q: Is it normal for the coolant level to drop?

Yes, due to extreme engine temperature, the water element in the coolant tends to evaporate, causing the coolant level to drop. Also, due to the availability of a spill bottle that exposes one end of the coolant, there is a tendency to spill additional coolant or leak coolant out of the system.

Q: Why is my coolant level low but not leaking?

Leaks are not always a reason to lose coolant. When a head gasket blows, coolant leaks into the engine compartment, resulting in coolant burning.

Q: Why does my engine coolant keep disappearing?

It depends on what makes the soda go away. It can usually be evaporation due to the natural process of steaming, engine equipment failure, interruption of coolant flow, a small radiator leak, cracked hoses or leaking hose connections that cause coolant to disappear over time.

Q: What happens if the coolant is below the minimum?

Be prepared to spend your hard-earned money if you keep driving your car with the coolant below the minimum allowable level. The coolant will continue to drop causing the water pump to fail due to its inability to pump coolant from the radiator into the engine compartment for the sole purpose of cooling. Pressure will build up causing a cascade of reactions ranging from cracking of the cylinder head, evaporation of coolant, bursting of the gasket and even engine stalling if precautions are not taken.

Q: How often should the coolant be topped up?

It is recommended to check the water coolant once a month and refill it from the outer bottle when the level is below the minimum. Never open the reservoir cap with the engine running or just stopped. In the case of small leaks and a regular drop in the coolant level, it is essential to measure and top up weekly and visit the workshop as soon as possible to avoid serious engine damage.

Why is my car losing coolant? (video from youtube)

last words

Coolant plays a crucial role in keeping the overall engine temperature and pressure at optimal levels. An ideal coolant has a high heat capacity, is non-toxic, prevents corrosion, and has low viscosity and density. For countries with cold temperatures, refrigerants with antifreeze properties are available that prevent the refrigerant from freezing even due to temperatures of -0°C. These properties keep the vehicle's engine running at full power along with other engine cooling equipment.

In the end, it is up to the user to spend a small amount to buy a suitable coolant and keep an eye on the level regularly with a low-quality coolant, or to avoid carelessly checking the level, which would result in spending a lot of time and money, to repair the engine.

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