HOW TO USE SEA FOAM MOTOR TREATMENT IN FUEL
BENEFITS
applicationS
treatment recommendations
SUMMARY
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.
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!
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.

HOW TO USE a high concentration of SEA FOAM
mOTOR TREATMENT IN FUEL
RELATED QUESTIONS
Hello! I was wondering if SeaFoam can be added to my tank after STP fuel stabilizer has been added. I currently have 15g in the tank and have a misfire in #3 being caused by debris in the combustion chamber from a careless spark plug swap.
Hi Destiny,
Thanks for the question! Yes, you can add Sea Foam Motor Treatment to the fuel tank if there’s already another additive in there. It’s safe and effective.
Tip: if you can, wait until you have a ¼ tank, add an entire 16 oz can of Sea Foam, and drive until almost empty. That will create a strong cleaning concentration and is the best way to clean with Sea Foam.
Would it be best to add Sea Foam when engine is cold or after driving it awhile to warm-up engine temperature?
Thanks for the question!
For Sea Foam in the gas tank or oil crankcase, it does not matter if the engine is hot or cold. In the gas tank, Sea Foam will clean and lubricate as the treated fuel is drawn through the fuel system. In the oil crankcase, the Sea Foam will circulate and clean as the engine runs.
The best time to add Sea Foam to the gas is when you’ve got about 1/4-1/8 of a tank left. Add an entire 16 oz can, drive until it’s almost empty, and then refuel as normal. The high concentration works very well to clean.
The best time to add Sea Foam is 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil. Add 1 ounce of Sea Foam per quart of oil.
Can Sea Foam be used in a 2020 Jeep Cherokee 6 cylinder?
Thanks for the question! Yes, any Sea Foam product can be used in your 2020 Jeep Cherokee 6 cylinder.
Just follow the instructions on the can.
Here’s a little more info on how to use Sea Foam Motor Treatment:
- Sea Foam Motor Treatment in fuel. I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.
- Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.
Let me know if you have any other questions – happy to help!
Can I add Seam Foam to nearly empty tank, fill it with fuel and then only drive it for 1 mile and let it sit?
Thanks for the question!
The best way to get the most cleaning power out of a can of Sea Foam is to create a high concentration of Sea Foam in your gas tank.
I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.
Doing that about every 3,000 miles is a great way to keep everything clean and running as best it can.
Can I use Sea Foam Motor Treatment on a 2008 Scion xB?
Hi Lori,
Thanks for the question!
Yes, you can use Sea Foam Motor Treatment in your 2008 Scion XB. It’s safe and effective in that model. Just follow the instructions on the can.
Here’s a little more info on how to use it:
- Sea Foam Motor Treatment in fuel. I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.
- Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.
You could also try High Mileage Motor Treatment. It’s made specifically for stubborn residues and deposits in higher-mileage vehicles. It’s a great cleaner!
Jim D.TECH
0