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Proper engine cooling depends heavily on the performance of coolant

Its main job is to absorb and carry away the heat generated by the engine during operation

Overheating due to insufficient coolant can cause irreversible damage including piston seizure and head gasket blowout

As it moves through the engine’s cooling passages, coolant collects waste heat and delivers it to the radiator for cooling and reuse

Coolant is not simply distilled water—it’s a precision-engineered fluid

They consist of water, corrosion inhibitors, lubricants, and antifreeze agents designed for peak performance

Antifreeze lowers the freezing point and elevates the boiling point, allowing the fluid to function reliably in extreme climates

Special inhibitors shield aluminum, copper, and cast iron from oxidation, while also reducing friction in the water pump and inhibiting mineral deposits

Over time, coolant breaks down and loses its effectiveness

Corrosion byproducts, rust particles, and debris accumulate as the inhibitor package wears out

Routine coolant inspections and replacements are non-negotiable for engine longevity

Most manufacturers recommend replacing coolant every 30,000 to 60,000 miles, but this can vary depending on the vehicle and driving conditions

Early detection of murky, oily, or rusty coolant can avert costly radiator or water pump failures

Insufficient fluid volume leads to hot spots that can damage internal components within minutes

An overheating indicator, elevated temperature gauge, or visible vapor are unmistakable red flags

Always wait until the engine has cooled completely before accessing the reservoir or radiator cap

Patience here prevents injury and ensures accurate readings

Using the wrong type of coolant can also damage the engine

Each manufacturer specifies a coolant type—OAT, HOAT, or IAT—based on metallurgy and design

Combining different chemistries can create gels, precipitates, or sludge that obstruct flow

Maintaining proper coolant levels and condition is one of the simplest and most cost effective ways to protect your engine

Consistent coolant maintenance directly contributes to longer engine durability and اتوسرویس داوود better mileage

Regular maintenance may seem like a small task, but it can save you from major breakdowns and costly replacements in the long run