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
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!
We have old gas in our classic cars from 1931 to 1958. Should I drain the old gas out? Will Sea Foam work in new gas after draining old gas?
Great question, Dannie. Yes, the best case scenario is to drain as much of the old fuel as you can, and then add Sea Foam to fresh fuel and drive it for a while.
Here’s a snippet with instructions from an article about vehicles that haven’t been run in a while:
“Gummy varnish and deposits are a common cause of problems like rough idle, loss of power, or poor fuel efficiency in a car that’s been sitting. Adding a high concentration of Sea Foam Motor Treatment or Sea Foam High Mileage to the fuel tank is an easy way to clean fuel residues and deposits from the entire fuel system. If your engine has been sitting for a long time, here are three steps to get it cleaned up and running well again with Sea Foam:
- Start by draining or syphoning the old fuel from the tank.
- Add 2-3 gallons of fresh fuel and a can of Sea Foam High Mileage to the fuel tank. If you can’t drain all the fuel, you’ll still want to add some fresh fuel to bring back fuel volatility.
- Drive until almost empty (at least twenty miles if possible) before refueling with fresh fuel.”
The Sea Foam will help clean up any gum or varnish that formed while sitting.
Is it safe to add two cans of Sea Foam to a full gas tank in my Accord?
Good question. Yes, it’s safe to add a high concentration of Sea Foam to fuel. It’s made with 100% safe petroleum cleaning and lubricating ingredients and it’s okay to add multiple cans. In fact, adding a high concentration works much faster and better to clean than a low concentration.
However, I’d wait until the gas 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.
You could add a second can at the same time (in a low tank 2-4 gallons of fuel).
Jim D.TECH
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