royal purple & seafoam spray together clean intake valves on a gdi direct injection - YouTube
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Sea Foam Motor Treatment - Engine
SeaFoam SS14 Quick-Acting Top Engine Cleaner and Lube 12 oz can (2 pack) - California Eye Specialists
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Nates Interactive Auto on Twitter: "Crc intake valve cleaner & seafoam vs a direct injection engine! Carbon buildup intake valve cleaning battle of the titans with a GDI engine. Watch video click
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Amazon.com: SS14 Sea Foam Spray Quick Acting Top Engine Cleaner and Lube 12oz 3 Pack : Automotive
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Clean your GDI (or ANY) intake valves the easy way - use Sea Foam Spray - YouTube
Seafoam intake valve cleaning NEVER before! - YouTube
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