How do I apply Sea Foam Spray to my engine?

With the engine running at operating temperature, spray short bursts into the air intake upstream of the throttle body. Follow the specific instructions on the can for your engine type, as carbureted and fuel-injected engines have slightly different procedures.

Is this the same thing as Sea Foam Motor Treatment that goes in the gas tank?

No. Sea Foam Spray (SS-14) is an aerosol applied through the air intake to clean the upper engine. Sea Foam Motor Treatment is a liquid poured into the fuel tank to clean the fuel system. They target different areas of the engine.

Can I use this on a GDI engine?

Yes, and GDI engines benefit the most. Because direct injection sprays fuel into the cylinder rather than over the intake valve, carbon builds up on the valve backs. Sea Foam Spray enters through the air intake side and cleans those deposits directly.

Sea Foam Spray SS-14 Engine Intake Cleaner 12 oz

Name: Sea Foam Engine Intake Cleaner Spray (12 oz.)
Brand: Sea Foam
SKU: MILSS-14
Price: 8.63 USD
Availability: InStock

Sea Foam Engine Intake Cleaner Spray (12 oz.)

$8.63

Usually ships the next business day

Aerosol intake cleaner that dissolves carbon deposits from intake runners, valves, and combustion chambers. Safe for all 2-stroke and 4-stroke gasoline engines.

Key Features

Dissolves carbon deposits from intake runners, intake valves, and combustion chambers
Applied through the throttle body or carburetor throat for direct upper engine cleaning
Safe for all 2-stroke and 4-stroke gasoline engines including GDI
Safe for oxygen sensors and coated engine parts
Lubricates throttle plates, bushings, and upper cylinders
Helps cure hesitation, rough idle, stalling, and pinging caused by carbon buildup

Secure CheckoutFast Shipping631-982-0042

Product Details

Sea Foam Spray SS-14 is a 12-oz aerosol upper engine cleaner designed to dissolve carbon deposits and residue buildup from the areas that fuel additives cannot reach. Applied directly through the throttle body or carburetor throat, it works through the intake runners, across the intake valves, and into the combustion chambers where carbon accumulates over time.

Carbon buildup on intake valves is especially common in Gasoline Direct Injection engines, where fuel never washes over the back of the valve. Standard fuel-tank additives cannot help in that situation because the fuel path bypasses the intake entirely. Sea Foam Spray addresses this by entering through the air intake side, coating and dissolving deposits on contact. It is safe for coated parts and oxygen sensors, and works on all 2-stroke and 4-stroke gasoline engines including carbureted setups.

Beyond cleaning, the formula lubricates throttle plates, bushings, and upper cylinders. Symptoms like hesitation, rough idle, stalling, and pinging caused by carbon buildup typically improve after a single treatment. It also works well as a storage protectant for intake and cylinder areas on seasonal vehicles and small engines.