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Honda Civic Type R (FK8) Radiator & Cooling FAQ's

Please read our FAQs page to find out more.

What cooling upgrades address FK8 heat soak at the track?

An aluminum radiator, auxiliary coolers, upgraded fans, and silicone hoses improve heat shedding. Proper ducting keeps the FK8 core seeing cool ambient air.

Is an oil cooler necessary on a tuned FK8?

For repeated high‑load use, yes—an FK8 oil cooler stabilizes viscosity and pressure so the engine maintains a safe film at temperature.

Do I need to burp the FK8 cooling system after upgrades?

Absolutely. Use the correct bleed procedure and verify fan operation. Air pockets cause hot spots and fluctuating temps in the FK8.