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FIX AN ENGINE PROBLEM

  • Carburetor Problems
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TRUSTED BY MECHANICS SINCE 1942

WHERE TO BUYHELP CENTER

Sea Foam

SEA FOAM PRODUCTS

  • Sea Foam Motor Treatment
  • Sea Foam Spray
  • Marine PRO
  • High Mileage
  • IC5 Fuel Injector Cleaner
  • Trans Tune
  • Deep Creep
  • Bugs B Gone
  • Universal Power Steering Fluid
  • Finish Exterior Fast Detailer
  • Finish Interior Fast Detailer

MAINTAIN YOUR ENGINE

  • Clean Fuel Systems
  • Clean Oil Systems
  • Clean Piston Rings
  • Cleaning Carburetors
  • Cleaning Fuel Injectors
  • Cleaning Intake Valves
  • Diesel Engine Maintenance Basics
  • DIY Engine Maintenance Basics
  • Engine Longevity Guide
  • High Mileage Engine Care
  • Marine Engine Care
  • Oil Change Tips
  • Power Steering System Maintenance
  • Professional Fuel System Cleaning
  • Small Engine Care
  • Using Sea Foam in Hybrid Vehicles
  • Wet Clutch Oil System
  • 10 Boat Motor Questions

FIX AN ENGINE PROBLEM

  • Carburetor Problems
  • Common Boat Motor Problems
  • Common Engine Problems
  • Degraded Fuel
  • Engine Stalls
  • Gas in Small Engine Oil
  • Hard Engine Start
  • Hydraulic Fluid System Issues
  • Lawnmower Won't Start
  • Lifter Noise
  • Loss of Power
  • Oil Burning
  • Passing Emissions Tests
  • Poor Gas Mileage
  • Power Steering Problems
  • Quad or ATV Runs Rough
  • Rough Engine Idle
  • Snow Blower Won't Start
  • Starting A Car That's Been Sitting
  • Transmission Slips
  • Varnish in Fuel System

ENGINE & FUEL STORAGE

  • ATV Storage
  • Boat & Marine Engine Storage
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  • Fuel Storage
  • Engine Fogging
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  • Motorcycle Storage
  • Protecting Boat Engine Cylinders
  • Snowmobile Storage
  • Snowblower Storage

APPEARANCE & DETAILING

  • Clean Road Bugs & Grime
  • Removing Crud & Stains
  • Road Grime & Tar
  • Algae & Boat Carpet
  • Brake Dust & Exhaust Soot
  • Mold & Grass Stains
  • Clear Coat & Paint
  • Chrome & metal
  • Plastics, Lexan, Plexiglass
  • Glass & Mirror

GARAGE ESSENTIALS

  • Fix It Forward - Repairing Vehicles, Empowering People
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  • Power Steering Fluid Essentials
  • Loosen Rusty Bolts
  • Preserve Vehicle Performance with Professional Engine Cleaning

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Can I add Sea Foam when there is another additive in the tank? [SOLVED]

5 Answers

I put a different brand in when my tank was half full and filled up the tank. I was not impressed with the results. Is it okay to put Sea Foam Motor Treatment in the fuel with the other additive now that I am at half a tank again, or should I wait till the rest of the other stuff goes through after a couple more fill ups?

The engine is a GM 4.2 I6.

Asked by Don V. In Alabama
Add AnswerCancel I have this question too.

Jim D.TECH
7

Official Answer

Hi Don,

Yes, it is okay to add Sea Foam to your fuel tank with another additive in it. Mixing them will not hurt anything. Here’s what I’d do: wait until you are at a quarter tank or less, and add a full can of Sea Foam Motor Treatment. Drive at least 20 miles before filling your tank to let the Sea Foam work through the system. Using a higher concentration of Sea Foam like that will do a great job cleaning out the engine – it’s one of the best ways you can use it! Hope that helps!

Answered by Jim D. TECH

Mohammadali Izadi
0

Is it possible to put Sea Foam Motor Treatment in both the engine oil and the gas tank at the same time?

Answered by Mohammadali Izadi

Conner Kranz
5

Yes, you can safely use Sea Foam in the gas tank and in the engine oil at the same time. In fuel, Sea Foam works to clean and lubricate through fuel passageways and combustion areas. In your crankcase, Sea Foam works to dissolve heavier oil residues and deposits back into liquid form so everything drains when you change your oil and filter.

Answered by Conner Kranz

Dallas Harris
0

I have a 99 F350 7.3 Diesel. Question is: Do you have to run the engine out of the first additive, specifically Motorcraft Cetane Booster, before adding Sea Foam? I put the Cetane in and haven’t ran the truck yet. I have been now that told Sea Foam best to use after I had used the Cetane Booster from Ford.

Answered by Dallas Harris

Conner Kranz
0

Sea Foam Motor Treatment can be used in conjunction with other fuel additives, specifically a cetane booster. Sea Foam Motor Treatment will not effect diesel cetane levels in any way. If you want to run a cetane booster and Sea Foam at the same time, you are completely safe doing so.

Answered by Conner Kranz
    Most answers will appear on this page within 24 hours. Be sure to state your question/s clearly. It always helps to include basic details about your engine like make and model!
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    SEA FOAM PRODUCTS

    • Sea Foam Motor Treatment
    • Sea Foam Spray
    • Marine PRO
    • High Mileage
    • IC5 Fuel Injector Cleaner
    • Trans Tune
    • Deep Creep
    • Bugs B Gone
    • Universal Power Steering Fluid
    • Finish Interior Fast Detailer
    • Finish Exterior Fast Detailer

    FIX AN ENGINE PROBLEM

    • Carburetor Problems
    • Common Engine Problems
    • Common Boat Motor Problems
    • Degraded Fuel
    • Engine Stalls
    • Hard Engine Start
    • How to Fix Gas in Small Engine Oil
    • Hydraulic Fluid System Issues
    • Lawn Mower Won't Start
    • Lifter Noise
    • Loss of Power
    • Oil Burning
    • Passing Emissions Tests
    • Poor Gas Mileage
    • Power Steering Problems
    • Quad or ATV Runs Rough
    • Rough Engine Idle
    • Snow Blower Won't Start
    • Starting A Car That's Been Sitting
    • Transmission Slips
    • Varnish in Fuel System

    MAINTAIN YOUR ENGINE

    • Clean Fuel Systems
    • Clean Oil Systems
    • Clean Piston Rings
    • Cleaning Carburetors
    • Cleaning Intake Valves
    • Cleaning Fuel Injectors
    • Diesel Engine Maintenance Basics
    • DIY Engine Maintenance Basics
    • Engine Longevity Guide
    • High Mileage Engine Care
    • Marine Engine Care
    • Oil Change Tips
    • Power Steering System Maintenance
    • Professional Fuel System Cleaning
    • Small Engine Care
    • Using Sea Foam in Hybrid Vehicles
    • 10 Boat Motor Questions
    • Wet Clutch Oil System

    ENGINE & FUEL STORAGE

    • ATV Storage
    • Boat & Marine Engine Storage
    • Car & Truck Storage
    • Engine Fogging
    • Fuel Storage
    • Lawn Equipment Storage
    • Lawnmower Storage
    • Motorcycle Storage
    • Protecting Boat Engine Cylinders
    • Snowblower Storage
    • Snowmobile Storage

    APPEARANCE & DETAILING

    • Clean Road Bugs & Grime
    • Removing Crud & Stains
    • Road Grime & Tar
    • Algae & Boat Carpet
    • Brake Dust & Exhaust Soot
    • Mold & Grass Stains
    • Clear Coat & Paint
    • Chrome & Metal
    • Plastics, Lexan, Plexiglass
    • Glass & Mirror

    GARAGE ESSENTIALS

    • Loosen Rusty Bolts
    • Fuel Storage
    • Power Steering Fluid Essentials
    • Preserve Vehicle Performance with Professional Engine Cleaning
    • Fix It Forward - Repairing Vehicles, Empowering People

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