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Parts for your 2019 Lexus Is-Coolant

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Mackay Heater Hose - CH1973

Mackay Heater Hose - CH1973

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$55
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Gates Oil Cooler Hose - 02-1559

Gates Oil Cooler Hose - 02-1559

$51
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Mackay Heater Hose - CH3076

Mackay Heater Hose - CH3076

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$47
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Mackay Heater Hose - CH3079

Mackay Heater Hose - CH3079

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$42
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Explore 4WD & Adventure

Repco Radiator Stop Leak 500ml - RRADSTOP500
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Repco Radiator Stop Leak 500ml - RRADSTOP500

$2
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Gates V/Belt H/Duty 9565Hd - 13A1440HD

Gates V/Belt H/Duty 9565Hd - 13A1440HD

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$126
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Gates Radiator Hose Lower - 05-2092

Gates Radiator Hose Lower - 05-2092

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$235
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Gates Drive Belt - 13A1725HD

Gates Drive Belt - 13A1725HD

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$147
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Gates Drive Belt - 13A1500HD

Gates Drive Belt - 13A1500HD

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$133
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Gates Radiator Hose Upper - 05-1791

Gates Radiator Hose Upper - 05-1791

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$74
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Goss EGR Cooler - EC116

Goss EGR Cooler - EC116

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$1,741
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Radiator Fan Assembly - FAU-34100

Radiator Fan Assembly - FAU-34100

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$1,354
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Gates Radiator Hose - 05-5605

Gates Radiator Hose - 05-5605

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$543
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Gates Radiator Hose - 05-5661

Gates Radiator Hose - 05-5661

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$445
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Gates Radiator Hose - 05-5742

Gates Radiator Hose - 05-5742

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$422
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Gates Radiator Hose - 05-5631

Gates Radiator Hose - 05-5631

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$352
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Gates Radiator Hose - 05-5526

Gates Radiator Hose - 05-5526

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$338
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Gates Radiator Hose Lower - 05-1033

Gates Radiator Hose Lower - 05-1033

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$340
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Gates Radiator Hose - 05-5662

Gates Radiator Hose - 05-5662

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$328
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Showing 4057 - 4095 of 4186 products

Understanding Coolant and Its Importance for the 2019 Lexus IS

The 2019 Lexus IS definitely uses coolant as a critical component of its engine maintenance system. Like most modern vehicles, the 2019 Lexus IS relies on coolant to keep its engine running smoothly and efficiently by managing the engine temperature. If you've got this sleek sedan or are thinking about getting one, knowing about the role of coolant and how to maintain it can help you avoid costly repairs and keep your Lexus performing at its best.

Coolant, also known as antifreeze, is a specially formulated liquid that circulates through the engine to absorb and dissipate heat. When the engine runs, it produces a lot of heat due to combustion and friction. Without an effective cooling system, the engine would quickly overheat, which can cause significant damage like warped cylinder heads or a blown head gasket.

For the 2019 Lexus IS, the cooling system is designed to maintain the engine's temperature within an optimal range. This system generally includes the radiator, water pump, thermostat, hoses, and of course, the coolant. The coolant absorbs heat from the engine and then flows through the radiator where the heat is released into the air, thanks to airflow and the radiator fan.

One of the key reasons coolant is so important not just in the Lexus IS but in nearly all modern vehicles is that it's more than just water. It contains chemicals, like ethylene glycol or propylene glycol, which prevent freezing in cold weather and boiling in hot conditions. Additionally, these chemicals help protect the internal metal parts of the engine and cooling system by preventing corrosion and scale build-up.

For Australian drivers who might experience a range of temperatures and conditions, from blistering summer heat to cooler winter nights, using the right coolant mix is vital to keeping the 2019 Lexus IS engine healthy. Typically, vehicles like the Lexus IS will have a 50/50 mix of coolant and distilled water, but always check the owner's manual or consult a Lexus service expert to make sure you're using the recommended type.

Maintenance of the coolant system is just as important as using the right coolant. Over time, the effectiveness of coolant degrades because the additives break down and contamination can enter the system. This can lead to corrosion or clogging, which in turn hampers the cooling performance and can ultimately cause overheating.

For the 2019 Lexus IS, it's generally recommended to have the coolant checked at every service interval, which is typically every 10,000 to 15,000 kilometres but can vary based on driving conditions and the specific Lexus service schedule. If the coolant level is low or if the coolant looks rusty or murky, it's a good sign it needs to be topped up or replaced.

When replacing coolant, it's not just a simple case of draining and refilling. The system should be thoroughly flushed to remove old coolant and contaminants. This ensures that the new coolant can do its job without obstruction. Many Lexus dealerships and experienced mechanics offer coolant flush services that involve flushing the cooling system with specialised equipment and refilling it with the recommended coolant mixture.

Ignoring coolant maintenance can lead to bigger problems, such as overheating that affects engine performance, damage to the head gasket, or even a seized engine in extreme cases. Replacement intervals can vary, but most manufacturers, including Lexus, suggest changing the coolant every 3 to 5 years, or around 100,000 kilometres. Checking the owner's manual will give the exact guidance tailored to the 2019 Lexus IS.

A few simple tips for maintaining your Lexus IS coolant system include:

  • Regularly check the coolant level in the reservoir tank and top up if necessary using the correct coolant type.
  • Inspect hoses and clamps for tightness or cracks to prevent leaks.
  • Keep an eye on the temperature gauge on the dashboard to catch any potential overheating early.
  • Follow the Lexus recommended service schedule for flushing and replacing coolant.

By giving attention to the coolant system, 2019 Lexus IS owners can ensure their engine stays cool and protected. This helps extend the overall lifespan of the vehicle and contributes to smoother, more reliable performance. Getting into the habit of regular checks and service for your coolant might not sound exciting, but it is one of the simplest ways to safeguard your investment on the road.