Directions
- Determine how much Sea Foam to add to oil. Add 1 ounce for each quart of oil in the crankcase.
- Remove oil filler cap and pour the recommended amount of Sea Foam directly into the engine crankcase. ...
- Drive 100 to 300 miles before every oil and filter change for best cleaning results, though Sea Foam can be added at any time between oil changes.
Is it safe to put Seafoam in engine oil?
Using Sea Foam in your oil, at 1 ½ ounces per quart, is a safe way to clean a crankcase, free up rings or free up sticky lifters as you drive. Sea Foam is not a chemical engine flush and therefore, it will not damage internal engine components or plug the oil pick up screen. Beside above, how long can you run seafoam in crankcase?
Does Seafoam really make a difference?
Does seafoam really make a difference? Does Sea Foam Really Make a Difference When Storing Your Vehicle? Yes. If you do not start your engine frequently, moisture and condensation can destabilize the fuel. In our experience, Seafoam is very good at maintaining fuel viability.
Should I Seafoam before or after an oil change?
Should I use Seafoam Before or After the Oil Change? The best time to use Sea Foam is after an oil change. When added to new oil, it works well in removing old oil deposits, quite noisy filters, and cleaning up any sludge. The best trick is adding seafoam 1000 miles to the next oil change and also immediately after an oil change.
Can you put Seafoam in oil?
You'll be adding the Seafoam directly to the oil in your vehicle. Since Seafoam is made of petroleum, it is safe to mix into the oil and should not cause any damage to the vehicle. When used in this manner, Seafoam will re-liquify old fuel and deposits, clearing out the carburetor bowl and jets in the process. 2 Keep the engine cold.

How do I add Sea Foam to my engine?
0:201:46How to add Sea Foam to crankcase oil - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe foreign oil change we add 1 to 1.5 ounces of seafoam motor treatment to each quart of oil weMoreThe foreign oil change we add 1 to 1.5 ounces of seafoam motor treatment to each quart of oil we recommend doing this 100 to 300 miles before every oil and filter change. All.
How do I add Sea Foam to my tank?
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 I add Sea Foam before or after gas?
Sea Foam won't “change” bad gas or make the gas better, but it will clean gum and varnish that often forms due to old fuel. Add two cans of Sea Foam High Mileage to a low tank of fuel (1/8 tank or so) and run until almost empty before refueling.
Can I just pour Sea Foam into my gas tank?
Remember, Sea Foam Motor Treatment only contains petroleum-based ingredients and is always safe to use in all types of gasoline and diesel engine fuels. It does NOT contain harsh detergent or abrasive chemicals. Sea Foam in your fuel is always cleaning, lubricating and protecting your entire fuel system!
How quickly does Sea Foam work?
Allow five to fifteen minutes for the Sea Foam to soak into the deposit buildup. After the soak period, restart the engine and be prepared to drive/operate for 30 miles. Don't be afraid to run it hard when possible and safe – An engine under load produces the necessary heat and compression for optimal cleaning.
When should I use Sea Foam?
Add Sea Foam to your oil crankcase – Super easy! Added to oil, Sea Foam liquefies heavier petroleum residues and deposits back into the fluid so everything drains away when it's time to replace oil and filter. Pour it in every oil-change interval to keep oil flow passageways cleaner and help the engine last longer!
What happens if you use too much Sea Foam?
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.
Can Sea Foam hurt your engine?
It is bad for fuel injectors Some cars have fuel injectors in the throttle body, while others have them in the intake valves. Seafoam will pour into the crevices of your car's engine and make a giant mess, clogging up these essential engine parts.
Does Sea Foam make your car smoke?
A: Yes, SeaFoam when used in a high concentration, i.e. de-carbonizing a 2 stoke motor or lawn mower, or a gunked up car fuel system, a bunch of white smoke will blow out, also a bunch of carbon gunk will also c… see more.
Does Sea Foam clean spark plugs?
Seafoam is one of the few additives that you can use to clean a fouled spark plug. When you add Seafoam to treat your fuel system, as it moves across the pistons and valves, it will also treat fouled spark plugs if there are any.
How do I put fuel additive in my tank?
0:211:52How To Use Fuel Injector Cleaner - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd you are going to get the appropriate. Amount of the fluid and pour it into the gas tank. NowMoreAnd you are going to get the appropriate. Amount of the fluid and pour it into the gas tank. Now ideally you should pour it into your gas tank when when the gas tank is almost empty.
Does Sea Foam clean catalytic converters?
1:215:31How to Clean The Catalytic Converter with Seafoam( Does ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis means that once the components. I just mentioned are cleaned and maintained it will minimizeMoreThis means that once the components. I just mentioned are cleaned and maintained it will minimize the catalytic converter. Problems seafoam is not for cleaning your catalytic converter thoroughly.
Benefits
When added to gasoline and diesel crankcase oil, Sea Foam Motor Treatment works to help:
Instructions
First determine the engine’s crankcase oil capacity. Most autos and light trucks have 5 or 6 quart systems. Check in your vehicle’s owner’s manual for the size of your crankcase. One 16 ounce can of Sea Foam Motor Treatment treats up to 16 quarts of oil.
Conclusion
Sea Foam Motor Treatment can be used in every type of gasoline or diesel engine. 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.
Benefits
Determine how much Sea Foam to add to oil. Add 1 ounce for each quart of oil in the crankcase.
Add Sea Foam to your oil crankcase – Super easy!
Adding to crankcase oil is the #2 use of Sea Foam (in fuel is #1) by professional mechanics and DIYers. Great intro video on how to do it – super easy! Added to oil, Sea Foam liquefies heavier petroleum residues and deposits back into the fluid so everything drains away when it’s time to replace oil and filter.
What Is Seafoam?
Seafoam is a secret formula made to clean up carbon build-up inside of car engines and fuel systems. The Seafoam brand has been used for cleaning engines of fuel & oil deposits for the last 50 years.
What Does Seafoam Do?
Over the years, there will build up carbon & sludge inside of your engine & inside of the fuel system. This will lead to more wear on your engine and clogged fuel systems may cause misfires or other dangerous situations for your car engine.
How To Use Seafoam
There are a couple of different ways you can use Seafoam. You can either put it into the crankcase/oil cap or into the fuel tank, or use it to clean the intake.
Possible Improvements With Seafoam
There are actually a lot of improvements you may get by using the Seafoam product, especially if you are using it on an old and tired car engine.
Conclusion
Seafoam is a great product for those who want to clean their fuel & engine systems of sludge and contaminants. The liquid solution can be poured into the fuel tank and there it will mix with the fuel and clean your system. You can also use a special Seafoam spray in the air intake or use the Seafoam in the crankcase.
