This product is a dual-function tank that combines a coolant overflow (reservoir) tank and an oil catch can into a single, space-efficient unit—ideal for performance or tightly packaged engine bays like the NSX.
Oil Catch Can with Internal Mist Separator (Baffle)
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The oil catch side is equipped with a mist separator, a type of internal baffle that captures and condenses oil mist and blow-by gases before they can re-enter the intake.
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Purpose: Prevents carbon buildup in the intake manifold, throttle body, and intake valves.
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Benefit: Helps maintain cleaner combustion, preserves engine efficiency, and can extend engine life—especially valuable in high-revving or turbocharged applications where blow-by is more pronounced.
Coolant Overflow Tank with Air Separator
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The coolant side of the tank features an air separator, which helps bleed air out of the cooling system.
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Purpose: Removes air pockets from the system that can cause hot spots or inefficient cooling.
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Benefit: Helps stabilize coolant temperature, reduces the chance of overheating, and supports consistent engine performance under load (like during track driving).
Pressure-Rated Design
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The tank is designed to withstand pressurization and is compatible with aftermarket 1.3 kg/cm² radiator caps, improving the boiling point of coolant and enhancing thermal efficiency under high load.
Built-in Coolant Level Gauge
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A visible level gauge is included for easy monitoring, increasing maintenance visibility and simplifying fluid checks during or after spirited driving.