HOW TO USE A HIGH CLEANING CONCENTRATION OF SEA FOAM 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 I use Sea Foam in a 2007 Dodge Caliber?
Good question, Raymond.
You can use any Sea Foam product in your Dodge Caliber. Just follow the instructions on the can.
As far as the best way to get value out of Sea Foam, here’s a little more info on how to use Sea Foam Motor Treatment, our most popular product:
- 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!
Can I soak valves in Sea Foam if they’re out of the engine?
Good question. Yes, soaking engine components or fuel system components (carb parts), transmission parts, and/or hydraulic system parts in a Sea Foam bath is a great way to clean parts.
Start with a slow cooker (crock pot). Either buy a new one for the kitchen (don’t use it for food again after using Sea Foam in it!), or purchase a cheap one dedicated to parts cleaning. Add enough Sea Foam Motor Treatment, High Mileage or Marine PRO to sufficiently cover the parts that need to be cleaned. Add the parts, put the cover on and turn the slow cooker on low or medium for 12-24 hours. After the “cooking time,” remove the parts and gently brush off the loosened contamination with a soft bristle brush or bottle brush to clean the remaining debris off the components. Pipe cleaners work great for small passageways. If there is still more contamination that needs to be cleaned, repeat the 12-24 hour “cooking time” and re-assess the parts. Hope that helps!
Should I use Sea Foam for SUVs and Trucks or Sea Foam high mileage? I have a 1986 Ford truck with 100,000+ miles, it has a 302 under the hood.
Thanks for the question!
I’d use High Mileage. It’s a strong cleaner formulated to clean stubborn residues and deposits in fuel and oil after years of buildup.
I’d add a full 16 oz can to a low tank of fuel (1/8 to 1/4 tank or so). Then, drive until almost empty before refueling (at least 20 miles if you can to give the High Mileage time to run through the fuel system). This creates a high cleaning concentration that works much faster and better than adding to a high amount of fuel.
I have an Onan generator that’s popping under load. Is it okay to put Sea Foam Motor Treatment directly into the carb?
Does Sea Foam work in ethanol-free gas?
Jim D.TECH
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