
Instructions
- With a water cooling source circulating through the engine’s water inlet (always while running), start and run the engine for 5 minutes to heat the intake.
- Disconnect the main fuel line (upstream) from the primer bulb, then attach the short section of hose.
- Insert the open end of the hose section into the Sea Foam and fuel mixture.
What is sea foam spray?
How long to soak a car engine?
How long to soak a car under engine load?
How to clean a carburetor throat?
What to do after fogging intake?
Can you spray into a mass air flow sensor?
Does sea foam spray harm engines?
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What is sea foam spray?
Sea Foam Spray is a blend of cleaning and lubricating petroleum ingredients that can be used SAFELY in all types of 2 and 4 stroke gasoline engines. Especially important for modern GDI engines, it cleans critical upper engine areas where fuel cleaners can’t reach.
How long to soak a car engine?
Spray a long burst, shut off engine and allow to hot soak for 10 minutes.
How long to soak a car under engine load?
With engine turned off, re-secure the intake boot onto the throttle body and allow engine to hot soak for 10 minutes. After hot soak, start and drive the vehicle under engine load for 10 minutes or longer.
How to clean a carburetor throat?
Remove air filter to access carburetor throat. With air filter removed, start engine and place tube nozzle into carburetor throat. Depending on engine size, use 2 to 4 ounces sprayed in bursts to avoid engine stalling. Spray a long burst, shut off engine and allow to hot soak for 10 minutes. After hot soak, start and operate engine ...
What to do after fogging intake?
After fogging the intake, allow engine to cool & remove spark plugs.
Can you spray into a mass air flow sensor?
DO NOT spray into the mass air flow sensor.
Does sea foam spray harm engines?
Sea Foam Spray does NOT contain harsh detergent or abrasive chemicals that can harm your engine or fuel system components. Help your engine run cleaner and last longer!
How to use seafoam in a car?
Go to the gas station and fill the vehicle's gas tank with high octane gasoline. When filling the tank, make sure that you leave enough room in the tank to add the calculated amount of Seafoam afterward. While Seafoam can technically be used with any octane gas, it is recommended that you use it with 91 octane or higher.
How to pour seafoam into vacuum hose?
Slowly pour Seafoam into the vacuum hose. Carefully pour one-third to one-half of the bottle directly into the detached hose.
How long does it take for seafoam to sink into a car?
6. Let the engine sit. As soon as you finish pouring Seafoam into the vacuum hose, turn off the engine and allow the car to sit for 10 to 30 minutes. The longer you wait, the deeper the Seafoam will sink into the engine.
What is seafoam used for?
Seafoam serves a variety of automotive purposes. You can use it to remove buildup in the engine, fuel injectors, or oil system. Make sure that you know how much to add, though, since adding too much can cause more harm than good. Steps.
How to get vacuum line to work on a car?
On most vehicles, the best option will be the vacuum line from the brake booster PCV. Since different vehicles are set up in different ways, you may need to choose a different option.
How to stop smoke in car?
1. Warm up the engine. Park the car in a well-ventilated area and start the engine. Let the engine warm to operating temperatures. You must do this while the car is in a well-ventilated area since the process will usually create a lot of smoke. Vehicles with automatic transmission should be kept in park.
Can you draw seafoam into a hose?
The manufacturer recommends against the practice of drawing Seafoam into the hose using suction.
Cleaner Is Better
Sea Foam has been around for over 70 years, and it is one of the most trusted treatments for all engines. While Sea Foam makes a range of excellent products, the main one is Sea Foam Motor Treatment.
How To Use Sea Foam
When deciding how to use Sea Foam Motor Treatment there are three options: in the crankcase, in the fuel tank, and in the diesel fuel filter. For cleaning the top end, use Sea Foam Spray as directed.
Jefferson Bryant View All
A life-long gearhead, Jefferson Bryant spends more time in the shop than anywhere else. His career began in the car audio industry as a shop manager, eventually working his way into a position at Rockford Fosgate as a product designer.
What is sea foam spray?
Sea Foam Spray is a blend of cleaning and lubricating petroleum ingredients that can be used SAFELY in all types of 2 and 4 stroke gasoline engines. Especially important for modern GDI engines, it cleans critical upper engine areas where fuel cleaners can’t reach.
How long to soak a car engine?
Spray a long burst, shut off engine and allow to hot soak for 10 minutes.
How long to soak a car under engine load?
With engine turned off, re-secure the intake boot onto the throttle body and allow engine to hot soak for 10 minutes. After hot soak, start and drive the vehicle under engine load for 10 minutes or longer.
How to clean a carburetor throat?
Remove air filter to access carburetor throat. With air filter removed, start engine and place tube nozzle into carburetor throat. Depending on engine size, use 2 to 4 ounces sprayed in bursts to avoid engine stalling. Spray a long burst, shut off engine and allow to hot soak for 10 minutes. After hot soak, start and operate engine ...
What to do after fogging intake?
After fogging the intake, allow engine to cool & remove spark plugs.
Can you spray into a mass air flow sensor?
DO NOT spray into the mass air flow sensor.
Does sea foam spray harm engines?
Sea Foam Spray does NOT contain harsh detergent or abrasive chemicals that can harm your engine or fuel system components. Help your engine run cleaner and last longer!

‘Can & Hose’ to The Rescue!
- Using the ‘Can & Hose’ method is an easy and cost-effective way to deliver a high cleaning concentration of Sea Foam Motor Treatment to an outboard’s intake and upper engine areas. It works fast and effective to: 1. clean hydrocarbon residues from fuel injector passageways and carburetor circuits (needles, jets, bowls, nozzles), 2. clean and lubricate upper intake areas, intak…
Works Great to Help Overcome
- hard starts,
- rough idle,
- stalls,
- restore acceleration and lost power,
The ‘Can & Hose’ System
- All you need is: 1. a small gasoline can with fresh fuel, 2. one pint of Sea Foam Motor Treatment, 3. water source/flush device (for marine applications), 4. a short section (24″) of matching diameter fuel line (1/4″, 3/8″, or 5/8″) you can buy from a parts store or marine dealer
Instructions
- For high-concentration intake and upper engine cleaning and/or seasonal engine storage, mix 1 part Sea Foam to 2 parts fresh fuel in a small fuel can. 1. With a water cooling source circulating through the engine’s water inlet (always while running), start and run the engine for 5 minutes to heat the intake. 2. Disconnect the main fuel line (upstre...
More Info
- Sea Foam Motor Treatment is made from highly-refined organic petroleum cleaning and lubricating oils, is safe on all fuel system/engine parts and components, and can be mixed as high as 50% with gasoline. The ‘Can & Hose’ system also works great for RV generators! You can always find more helpful ideas at Sea Foam Official (Youtube channel) and our website’s HOW …