
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. In The Crankcase
Crankcase
In an internal combustion engine of the reciprocating type, the crankcase is the housing for the crankshaft. The enclosure forms the largest cavity in the engine and is located below the cylinder(s), which in a multicylinder engine is usually integrated into one or several cylinder blo…
How to use Seafoam to clean your engine?
The Seafoam manufacturer lists three ways it can be used:
- poured into the crankcase to get rid of crankcase deposits
- poured into the gas tank to clean fuel injector
- sucked into a vacuum line as an upper engine or top engine cleaner.
How to use Seafoam properly?
When you use seafoam
- Vehicle performance. ...
- Appearance: The color of the fuel is very important in determining the deposits of carbon or any impurities. ...
- The leaked fuel tank of vehicle: The fuel tank of the car is well hidden in the car and not directly affected by the outside weather.
Does Seafoam actually work?
Seafoam and a tooth brush work really good at cleaning a throttle body. It's makes old gas run well. It's good carb cleaner. It is amazingly good at cleaning sludge out of a motor. Dump a can in your crank just before an oil change, your oil will turn absolutely black when you drain that oil.
How to use sea foam in fuel?
In the crankcase
- When added to the oil, Sea Foam will clean up sludge, quiet noisy lifters, and remove oil varnish. ...
- Pop the cap off the oil filler neck. You can add Sea Foam before or after an oil change.
- Pour up to one ounce of Sea Foam per quart of oil already in the engine. We used about half of the bottle.

How do you use Sea Foam Motor Treatment?
0:192:35How much Sea Foam should I add to fuel? - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd deposits from forming in a fuel system whether gas or ethanol or diesel fuel sea foamsMoreAnd deposits from forming in a fuel system whether gas or ethanol or diesel fuel sea foams maintenance recommendation is one ounce per gallon poured into your tank.
Do you put Sea Foam on empty or full tank?
Summary. For cleaning a gasoline or diesel fuel system, it's safe to add more Sea Foam to fuel. In fact, the more Sea Foam you add to fuel, the better it cleans! Pour Sea Foam in your fuel tank to clean and lubricate your entire fuel system.
Do you use Sea Foam before or after gas?
Put the fuel tank cap back on and drive your car at a steady pace for at least five to ten minutes. As you drive, the Seafoam should mix into the gasoline, improving the quality of the gasoline and cleaning the fuel injectors at the same time.
What happens if you put too much Sea Foam in your gas tank?
Spraying too much Seafoam may also clog your vehicle's vacuum system. This means that more clogs may occur as a result. Aside from sludge, your vehicle's engine may also have plenty of dirt, debris, and the like trapped inside.
How long does it take for Sea Foam to work?
#1 Stabilize your Stored Fuel – Use Sea Foam Motor Treatment Unprotected fuel exposed to oxygen will start to lose its freshness in less than 30 days. Immediately treat any fuel that may not be replenished within 30 days. For fuel storage up to two years, add 1 ounce of Sea Foam per gallon of fuel.
Can you put a whole can of Sea Foam in gas tank?
Ways to apply higher cleaning concentrations: One way is to add Sea Foam Motor treatment when a fuel tank is low. For example, adding a full can (16 ounces) to 8 gallons of fuel is a 2 ounce per gallon ratio.
Can you put Sea Foam in your vacuum line?
0:066:32How to use Seafoam through a vacuum line - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow seafoam can be really helpful to clean deposits. And the valves and everything. And you oh youMoreNow seafoam can be really helpful to clean deposits. And the valves and everything. And you oh you want to dump some into your gas tank because it'll help clean out your injectors.
Which is better Sea Foam or Stabil?
Is Sea Foam better than Stabil? Both Sea Foam and Stabil Storage can keep fuel in good condition for up to 24 months. However, Stabil Storage costs half as much as Seafoam and is 2.5 times more potent, so it provides a much better deal overall.
Where do you put Sea Foam?
10:4712:04TOP 3 WAYS TO USE SEAFOAM!!! (That You Might Not Know) - YouTubeYouTubeStart of suggested clipEnd of suggested clipWhen we put it into the intake manifold which not only cleans out your throttle. Body but it alsoMoreWhen we put it into the intake manifold which not only cleans out your throttle. Body but it also cleans out the intake side of your head cleans out the tops of the valves.
Does Sea Foam clean engine sludge?
When added to an engine's oil crankcase, Sea Foam Motor Treatment works to clean and liquefy heavier oil deposits, so the residues will drain away when the oil is changed. Sea Foam cleans internal engine parts, prevents sludge and other harmful oil formations.
Will Sea Foam fix misfire?
Cool. I was having multiple misfires in cylinder 2, almost all at idle, and a somewhat rough idle. Plugs are new and car passed a pressure test.
Will Sea Foam clean carburetor?
Use Sea Foam Spray to safely and effectively clean residues and deposits from intake valves, chambers and compression rings! Sea Foam Spray delivers a high concentration of petroleum cleaning solvency and lubricity to carburetor throttle valves, intake runners and valves, and chamber areas.
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.
How does Marine Pro work?
It works through fuel injectors and carburetors to safely remove harmful engine residues and deposits from fuel passageways, intake valves, pistons and chamber areas. Marine PRO is safe and effective in all 2- and 4-stroke gasoline marine engines, inboard and outboard.
Does Marine Pro contain alcohol?
Marine PRO does not contain alcohol. NEW! Sea Foam Marine PRO - Complete marine fuel system treatment. If playback doesn't begin shortly, try restarting your device. Videos you watch may be added to the TV's watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
Directions
Instant action. A 100% pure petroleum product for use in all gasoline and diesel type engines, both 2-cycle and 4-cycle. Oxygen sensor safe. Cleans dirty engine parts internally by removing harmful gums, varnish and carbon. Works and performs instantly. Removes moisture from oil crankcases and fuel tanks. Stabilizes and conditions fuels.
Description
Sea Foam® Auto Marine Fleet Motor Treatment. Car. Truck. Inboard. Motorcycle. Tractor. Snowmobile. Outboard. Snowblower. Lawnmower. Chainsaw. For gas and diesel engines. Helps pass emissions tests. Cures hesitations pinging rough idle. When added to fuels. *Cleans injectors. *Cleans carb jets. Fuel stabilizer. Removes moisture from fuel & oil.
Other Description
Tested to 60 degrees below zero. This gasoline additive is safe for use in all gasoline engines. This diesel fuel additive complies with the federal low sulfur content requirements for use in diesel motor vehicles and non-road equipment engines. Since 1942. Manufactured for Sea Foam Sales Co. Steel. DSC. Contains pet.
When to add fuel to a low tank?
For cleaning, add to a low or partial tank of fuel to increase concentration. For stabilizing fuel for seasonal storage, best to add when fuel is fresh.
Does Marine Pro contain alcohol?
Marine PRO does NOT contain harsh chemicals or abrasive detergents that could harm your engine. Does not contain alcohol. Learn How. How Often you should use Marine Pro Fuel Treatment.
Description
Sea Foam® Auto Marine Fleet Motor Treatment.Car.Truck.Inboard.Motorcycle.Tractor.Snowmobile.Outboard.Snowblower.Lawnmower.Chainsaw.For gas and diesel engines.Helps pass emissions tests.Cures hesitations pinging rough See more...
4 reviews
Was experiencing sluggish response when stepping on the throttle so I took the car to my mechanic shop to have the fuel filter checked. An easy task on other vehicles I have owned but not on my Pathfinder but that is a review for another day.
What is sea foam used for?
Pour Sea Foam in your fuel tank to clean and lubricate your entire fuel system. It works through fuel injectors and carburetors to remove harmful residues and deposits from fuel passageways, intake valves, pistons, and chamber areas. Made from petroleum ingredients, Sea Foam is safe and effective when used in all types of gasoline ...
Is sea foam safe for diesel engines?
Made from petroleum ingredients, Sea Foam is safe and effective when used in all types of gasoline or diesel fuels and fuel blends. Sea Foam does NOT contain harsh detergent or abrasive chemicals that can harm your engine or fuel system components. If playback doesn't begin shortly, try restarting your device.
