Parts for your 2020 Subaru Impreza-Coolant

Understanding Coolant and Its Importance for the 2020 Subaru Impreza

The 2020 Subaru Impreza, like most modern vehicles, uses coolant as a vital part of its engine management system. Coolant, sometimes called antifreeze, plays an essential role in keeping the engine running smoothly and efficiently. For owners of the 2020 Subaru Impreza, knowing what coolant does and how to maintain it ensures the car stays reliable and can handle different Australian driving conditions.

Simply put, coolant is a specially formulated liquid that circulates through the engine's cooling system. Its main job is to absorb the heat generated by the engine during operation and transfer it to the radiator, where it is dissipated into the air. Without coolant, the engine would quickly overheat, leading to serious mechanical damage.

Also, coolant helps prevent the cooling system components from freezing in cold weather, hence the name antifreeze. This is particularly handy if you ever find yourself in a chilly part of the country during winter or early mornings when frost might form. Coolant is a mix of water and chemical additives, usually ethylene glycol or propylene glycol, which lower the freezing point and raise the boiling point of the liquid inside the system.

Besides heat regulation, coolant provides corrosion protection. The internal parts of the cooling system - like the radiator, water pump and engine block - are often made of metals that can rust or corrode if exposed to untreated water alone. The additives in the coolant form a barrier to stop rust and corrosion, extending the life of these critical components and preventing leaks or failures down the track.

Checking and replacing the coolant is a key part of regular servicing for the 2020 Subaru Impreza. Over time, coolant degrades and loses its protective properties. If coolant levels drop or the mixture becomes diluted, the engine may overheat more easily or suffer corrosion damage. Subaru typically recommends inspecting coolant every 12 months or 15,000 km, but it is wise to check it more often if the vehicle is driven in harsh conditions, such as extreme heat, heavy traffic, or towing.

When topping up coolant or performing a full flush, the type of coolant used is important. The 2020 Subaru Impreza uses Subaru's own branded long-life coolant designed to suit the aluminium engine and cooling system materials. This type of coolant combines corrosion inhibitors with the right freeze and boil protection levels for the Subaru engine's design. Using a generic coolant or mixing different types can reduce effectiveness and even cause damage over time.

During a coolant flush service, the old coolant is drained and the cooling system is cleaned before refilling with fresh coolant. This helps remove any build-up of rust particles or deposits that can clog the radiator and reduce cooling efficiency. Ideally, the coolant should be replaced every five years or 160,000 km, but always check the owner's manual for specific intervals tailored to your driving habits and conditions.

A good tip for Subaru Impreza owners is to regularly inspect the coolant level through the translucent reservoir tank under the bonnet. There are minimum and maximum level markings that indicate when to top up. Never open the radiator cap when the engine is hot, as this can cause hot coolant and steam to spray out and cause burns. Always wait until the engine is cool before checking or adding coolant.

If a Subaru Impreza starts to overheat, this may indicate a coolant-related issue such as a leak, blocked radiator, or faulty water pump. Signs to watch for include steam coming from under the bonnet, a sweet smell inside the cabin, or a warning light on the dashboard. Catching these problems early with proper maintenance will save time and money on repairs later.

Coolant also plays a part in helping the heater inside the cabin function properly. When the engine is warm, the coolant circulates through a small radiator unit called the heater core. Heat from the coolant transfers into the air blown through the vents, providing warmth for the passengers during cooler days.

All up, the presence and maintenance of coolant in the 2020 Subaru Impreza is non-negotiable. It keeps the engine at the right operating temperature, prevents freezing and corrosion, and contributes to passenger comfort. Subaru Impreza drivers who take the time to keep their coolant in top shape are rewarded with a car that performs reliably and handles the varied Australian climate with ease.