
Sea Foam IC5 Fuel Injector Cleaner is a product designed to clean fuel injectors and restore injector spray patterns to improve engine performance and power. It is made from naphtha and pale oil and is safe for all types of gasoline fuel injection engines. To use Sea Foam IC5 Fuel Injector Cleaner, simply pour a full bottle into your fuel tank and go. For best results, add the product when the tank is low to maximise cleaning concentration. Sea Foam Motor Treatment is another product that can be used to clean fuel injectors, and it can be added in high concentrations to treat large fuel tanks.
How to use Sea Foam to clean fuel injectors
| Characteristics | Values |
|---|---|
| How much Sea Foam to use | A full bottle of IC5 Fuel Injector Cleaner treats up to 25 gallons or 95 liters of fuel. |
| When to add Sea Foam | For best results, add Sea Foam when the tank is low to maximize cleaning concentration. |
| Safety | Sea Foam is safe for all types of gasoline fuel injection engines and capless tanks. It can be used with other additives and won't harm your engine. |
| Frequency of use | Use regularly to help overcome problems caused by fouled fuel injectors. For best results, add to every fuel tank fill-up to maintain clean engine performance. |
| Benefits | Cleaner fuel injectors and passageways lead to better engine performance and power. It can help restore lost power and recover lost fuel economy caused by dirty injector fouling. |
| Alternative methods | Sea Foam Motor Treatment can be used to treat large fuel tanks. Add a small amount of fuel (2-4 gallons) and a whole 16 oz can of Sea Foam Motor Treatment, then drive until it's almost empty. Sea Foam Spray can also be used to clean intake valves. |
| Considerations | Sea Foam may cause a "funny" smell if used straight through the throttle body or carburetor. It is designed for 2-stroke outboard motors and may not be ideal for modern 4-stroke engines. |
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What You'll Learn

Pour a full bottle of Sea Foam IC5 Fuel Injector Cleaner into your fuel tank
To use Sea Foam IC5 Fuel Injector Cleaner, simply pour a full bottle into your fuel tank. This will treat up to 25 gallons or 95 litres of fuel. For best results, add the full bottle when your tank is low to maximise the cleaning concentration. It is safe for all types of gasoline fuel injection engines and works with capless tanks.
Sea Foam IC5 Fuel Injector Cleaner is specially formulated to clean fuel injectors and restore injector spray patterns to improve engine performance and power. It is designed to help restore lost power and recover lost fuel economy caused by dirty injector fouling. The product is also safe to use with other additives and can be added to every fuel tank fill-up to maintain clean engine performance.
Regular use of Sea Foam IC5 Fuel Injector Cleaner can help prevent hard starts, rough idling, and engine hesitations. It is recommended to add a full can or two of Sea Foam High Mileage when your fuel tank is low (around 1/8 full) to address these issues.
After adding Sea Foam to your fuel tank, it is important to drive until the tank is almost empty before refuelling. This allows the Sea Foam to effectively clean the fuel injectors and anywhere that comes into contact with fuel.
In addition to using Sea Foam in your fuel tank, it can also be added to your oil. However, it is recommended to change the oil after using Sea Foam as it may make the oil extra dirty.
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Use Sea Foam Spray to clean intake valves
Sea Foam Spray is an effective way to clean intake valves and upper engine areas that fuel cleaners cannot reach. It is a blend of cleaning and lubricating petroleum ingredients that can be used safely in all types of 2 and 4-stroke gasoline engines.
To use Sea Foam Spray to clean intake valves, first, warm up the engine and then turn it off. Remove the air filter to access the carburetor throat. Start the engine and place the tube nozzle into the carb throat. Use 2-4 ounces of Sea Foam Spray in bursts to avoid engine stalling. Spray a long burst and then shut off the engine. Allow the engine to hot soak for about 10 minutes. Replace the air filter. After 10 minutes, start the vehicle and drive the engine under load for at least 10 minutes.
Sea Foam Spray can also be used to fog engines and coat spark plug cavities to protect the engine during storage. To do this, with the engine running, insert the straw into the intake throat (if carbureted) or directly before the throttle body (if fuel-injected). Spray Sea Foam Spray continuously until the can is empty, then shut off the engine. Allow the vehicle to hot soak for 10 minutes.
Sea Foam Spray is especially important for modern Gasoline Direct Injection (GDI) engines, as cleansing gasoline detergents do not reach behind the intake valves. This can lead to a buildup of carbon deposits, causing valves to stick or not allow for proper airflow to the cylinders. By using Sea Foam Spray, you can help your engine run cleaner and more efficiently while also protecting it from rust and corrosion.
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$46.99

Safe to use with other additives
Sea Foam IC5 Fuel Injector Cleaner is safe to use with other additives. You can safely mix it with other additives and it is also safe to use in conjunction with Sea Foam Motor Treatment. In fact, Sea Foam Motor Treatment is recommended for treating larger volumes of fuel, as it is available in 20 oz and 1-gallon sizes.
Sea Foam Motor Treatment can be used in high concentrations with a small amount of fuel (2-4 gallons) to effectively clean fuel injectors. This is a good option if you are trying to treat large fuel tanks without having to fill the entire tank.
Sea Foam products are made with safe petroleum ingredients, so they won't harm your engine when added to fuel. They are safe for all types of gasoline fuel injection engines and can be used with capless tanks.
However, it is important to note that some people consider Sea Foam to be "garbage" for modern 4-stroke engines, as it was designed for 2-stroke outboard motors. These individuals recommend using a fuel injection cleaner with PEA, such as Chevron Techron or Gumout multi-engine treatment, instead of Sea Foam.
Despite this, many people have used Sea Foam in their cars with positive results, so it is a matter of personal preference and judgment.
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Drive until almost empty before refuelling
For maximum cleaning, it is recommended that you add Sea Foam to your fuel tank when it is low (1/4 to 1/8 full). This allows you to add a full can of Sea Foam (16 oz) to your tank, which will result in a higher concentration of the product and, therefore, better cleaning.
After adding Sea Foam to your tank, you should drive until the tank is almost empty before refuelling. This gives the Sea Foam time to clean your fuel injectors and anywhere else that comes into contact with fuel. The longer the Sea Foam is in your tank, the better it can work to remove harmful residues and deposits from fuel passageways, intake valves, pistons, and chamber areas.
It is safe to add a high concentration of Sea Foam to your fuel tank, and it will not harm your engine. In fact, Sea Foam is designed to be used in this way and is made with safe petroleum ingredients.
For regular cars and trucks, it is recommended that you add Sea Foam to your fuel every 3,000 miles. For small engines, add Sea Foam whenever you refuel. For engines that are not used regularly, add Sea Foam to every tank of fuel.
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Best used at the beginning of fall and winter
It is recommended to use fuel injector cleaners at the beginning of fall and winter as a preventative measure for cars that will be stored away for the winter. This is because vehicles that are stored for several weeks or months are more likely to develop fuel system clogs than those driven regularly.
To prevent clogged fuel injectors, use fuel additives periodically and keep your fuel system clean. For long-term storage, pour a fuel stabilizer additive into the tank and run the engine for at least a few minutes every couple of weeks to keep the fuel flowing.
There are several fuel injector cleaners available on the market, such as Techron Fuel Injector Cleaner, Lucas Injector Cleaner, or Techron Fuel System Cleaner, which are designed to break down deposits in the injectors. Sea Foam IC5 Fuel Injector Cleaner is another option that can be safely mixed with other additives and works for all types of gasoline fuel injection engines. Simply pour a full bottle into your fuel tank and drive as usual to let the cleaner work through the system.
For a more thorough cleaning, consider using a fuel injector cleaner kit, which requires disconnecting the fuel rail and throttle body to attach the cleaner directly to the system. This provides a deep clean that removes stubborn buildup. However, if you are not experienced with auto maintenance, consult a professional mechanic to avoid any potential issues.
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Frequently asked questions
For best results, add a full bottle of Sea Foam IC5 Fuel Injector Cleaner to your fuel tank when it is low. One bottle treats up to 25 gallons. Sea Foam is safe for all types of gasoline fuel injection engines and works with capless tanks.
It is recommended to use Sea Foam regularly, adding it to every fuel tank fill-up to maintain clean engine performance.
Yes, Sea Foam IC5 Fuel Injector Cleaner can be safely mixed with other additives. Sea Foam Motor Treatment and IC5 can also be used together.
Cleaner fuel injectors and passageways lead to better engine performance and power. Sea Foam can help to restore lost power and recover lost fuel economy caused by dirty injector fouling. It can also help to prevent hard starts, rough idling, and engine hesitations.











































