Motor Treatment for Gas and Diesel Engines (16 fl. oz.)
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Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.)

Part No. SF16 Warranty  
Sea Foam® Motor Treatment for Gas and Diesel Engines is a 100% pure petroleum product that works instantly to clean deposits from internal engine parts and remove moisture from oil crankcases and fuel tanks. As a fuel system additive, Sea Foam® motor treatment will clean carburetors, fuel injectors, clean carbon, gum and varnish deposits, add lubricity to fuel, stabilize fuel and control moisture. As an oil system additive, Sea Foam® motor treatment controls moisture, gum, varnish and residue deposits. Get the results you expect from a name you trust - buy Sea Foam Motor Treatment for Gas and Diesel Engines.
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Container/Package Size:16 oz
Container/Package Type:STEEL CAN
Synthetic Compatible:Yes

REVIEW SNAPSHOT®

by PowerReviews
Sea FoamMotor Treatment for Gas and Diesel Engines (16 fl. oz.)
 
4.7

(based on 222 reviews)

Ratings Distribution

  • 5 Stars

     

    (171)

  • 4 Stars

     

    (39)

  • 3 Stars

     

    (7)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (2)

96%

of respondents would recommend this to a friend.

Pros

  • Easy to use (166)
  • Reliable (123)
  • Can withstand use (20)
  • Compact (18)
  • Does what it claims (3)

Cons

  • Difficult to use (3)

Best Uses

  • Upkeep (143)
  • Home garage (119)
  • Automotive repair shop (63)
  • Roadside repairs (17)
  • Motorcycling (3)
    • Reviewer Profile:
    • Auto enthusiast (46), Casual driver (36), Mechanic (23), Competitive driver (6)
    • Reviewer Profile:
    • Auto enthusiast (71), Casual driver (67), Mechanic (32), Truck enthusiast (31), Competitive driver (11)

Most Liked Positive Review

 

Complete Systems Cleanout.

Seafoam engine treatment.

You will be amazed what this product can do. It typically is used as a fuel system additive, but has many other uses. When used as a fuel...Read complete review

Seafoam engine treatment.

You will be amazed what this product can do. It typically is used as a fuel system additive, but has many other uses. When used as a fuel system additive you should expect almost immediate results. The primary ingredient burns very rapidly and at an extremely high temperature producing a burn-off cleaning effect within the engine and exhaust system. This may cause your engine to run much smoother and quieter. It can also be used as a engine flush to aid in the removal of built up gunk and sludge.

The product is also available in one gallon cans.

Warning: Burns extremely hot!
Use caution when the application is air-cooled.

VS

Most Liked Negative Review

 

Sea Foam

Use Shell/BP in my car so I haven't noticed any difference in 5000 mi. maybe if I used lower quality gas it would make a difference.

Use Shell/BP in my car so I haven't noticed any difference in 5000 mi. maybe if I used lower quality gas it would make a difference.

Reviewed by 222 customers

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Displaying reviews 1-10

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5.0

The best

By Robert

from Mayville , WI

About Me Casual Driver

Verified Buyer

Pros

  • Reliable

Cons

    Best Uses

    • Home Garage
    • Upkeep

    Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

    Best fuel additive ever invented

    Comment on this review(earn points)

     
    5.0

    Go to Fuel additive

    By Everything starts

    from Elkhart IN

    About Me Auto Enthusiast, Mechanic

    Verified Buyer

    Pros

    • Easy To Use
    • Reliable

    Cons

      Best Uses

      • Automotive Repair Shop
      • Motorcycle
      • Upkeep

      Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

      I use it as a fuel additive in my vehicles and in all my small engines.

      Comment on this review(earn points)

      (1 of 3 customers found this review helpful)

       
      4.0

      Remove carbon deposits

      By Mark

      from Cantonment, FL

      About Me Casual Driver

      Ask me a question

      Verified Buyer
      Level 3

      Pros

      • Improves performance

      Cons

        Best Uses

        • Home Garage

        Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

        Gave my 98 GMC Sierra 4x4 the Sea Foam treatment. It cleaned carbon deposits and improved injector and engine performance. Ran about 6 oz. through the intake manifold and saw an improvement in engine performance. You could actually see the carbon being blown out of the exhaust pipes. Gas mileage and overall engine power improved. I'm going to do the treatment on my 06 Trailblazer.

        Comment on this review(earn points)

        (2 of 5 customers found this review helpful)

         
        5.0

        GREAT for motorcycles!

        By Justin D

        from Lakeland

        About Me Auto Enthusiast, Motorcycle Enthusiast, Truck Enthusiast

        Ask me a question

        Level 5

        Pros

        • Easy To Use
        • Reliable

        Cons

          Best Uses

          • Carburetor Tune-up
          • Home Garage
          • Upkeep

          Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

          I recently purchased a used 2008 Honda Shadow Aero 750 with 5,500 original miles. The bike did not get rode frequently enough and sat for approx 10 months. It did not run very well so I drained the old gas and filled it back up with fresh high octane gas (3 gallons) and 8 0zs of SeaFoam. This stuff really helped. After letting the bike idle for about 45 mins and riding for around 80 miles the carburetor functioned much better. The hesitation and back firing stopped. I ran SeaFoam through the fuel system for two more gas tanks full and the bike got even better. GREAT STUFF! I'll be using it in my other two bikes also.

          Comment on this review(earn points)

          (3 of 4 customers found this review helpful)

           
          4.0

          used many times over

          By meandean

          from addison,pa

          About Me Casual Driver

          Verified Buyer
          Helpful Reviewer

          Pros

          • Reliable

          Cons

            Best Uses

              Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

              use it in the boat gas every winter as stabilizer; makes a difference in performance as well.

              Comment on this review(earn points)

              (2 of 3 customers found this review helpful)

               
              5.0

              saved my summer

              By firedancer

              from flint/west branch mi.

              About Me Boat owner, Casual Driver

              Level 1

              Pros

              • Easy To Use
              • Reliable

              Cons

              • None

              Best Uses

              • Upkeep

              Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

              I had a problem with my boat not wanting to stay running this spring. Put in new plugs,changed fuel/water seperator,used carb cleaner/gas drier...no help. Then checked fuel pump-,working.Friend sugested sea foam,put in to my gas,and with in 5-10 min. was running wide open-no problem!! thanks sea foam! the grand kids give you the thumbs-up also.

              Comment on this review(earn points)

              (1 of 1 customers found this review helpful)

               
              5.0

              Works like a charm

              By Sowiz

              from Saratoga Springs NY

              About Me Casual Driver

              Verified Buyer
              Level 2

              Pros

              • Can Withstand Use
              • Easy To Use
              • Reliable

              Cons

              • None

              Best Uses

              • Upkeep

              Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

              Use on all my motorized vehicles.

              Comment on this review(earn points)

              (2 of 4 customers found this review helpful)

               
              5.0

              I Use Sea Foam in Evrerything

              By Powered By Winchester

              from Athens, GA

              About Me Auto Enthusiast, Serious D I Yer, Truck Enthusiast, True Gearhead

              Ask me a question

              Level 4

              Pros

              • Easy To Use
              • Works as advertised

              Cons

                Best Uses

                • Automotive Repair Shop
                • Home Garage
                • Preventative Maintenance
                • Upkeep

                Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

                I am typically not a believer in 'snake oils' or mechanic-in-a-can chemicals, HOWEVER, I am a true believer in Sea Foam.

                I've cured rough idling small engines with it. I've cured hard to start symptoms. I've cured bogging engines with it. I've also used it as a fuel stabilizer.

                I run a can through my lawn mower every spring as well as mix a can with a gallon of 2 cycle mix for my trimmer and chain saw. I use it in my 175HP outboard boat engine the 1st trip out every spring. I truly believe it aides in keeping all my gas burning engines running top notch and trouble free.

                Comment on this review(earn points)

                (1 of 2 customers found this review helpful)

                 
                5.0

                Great Stuff

                By Big Dog

                from S.E. North Carolina

                About Me Auto Enthusiast

                Ask me a question

                Verified Buyer
                3 or more reviews submitted

                Pros

                • Easy To Use

                Cons

                  Best Uses

                  • Automotive Repair Shop
                  • Home Garage
                  • Remove Carbon Build Up
                  • Upkeep

                  Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

                  This works great for removing build up in Ford/Lincoln products. I didn't see so much with my GM products.
                  I read about using the brake booster vacuum hose to pull it into the engine. Talk about some smoke. The Lincoln blew junk out for a while.

                  Comment on this review(earn points)

                  (0 of 2 customers found this review helpful)

                   
                  5.0

                  AWESOME!

                  By Jimmy Owner

                  from Niceville, FL

                  About Me Casual Driver

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Easy To Use
                  • Reliable

                  Cons

                  • Messy

                  Best Uses

                  • Upkeep

                  Comments about Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.):

                  Improved engine performance and gas mileage. Just a bit messy if you don't have a funnel when pouring into your gas tank.

                  Comment on this review(earn points)

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                  Do you have questions about this product?(earn points for answers!)

                   

                  Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                  106 Questions | 124 Answers
                  Displaying questions 1-10Previous | Next »
                  • Q:

                    Should you run the car for awhile at highway speeds after you dump a can of Sea Foam in the tank ? Or does intermittent city/Hwy. driving work as well ?
                    Asked on 11/26/2014 by AllyMayDog from Western Missouri

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Yes AllyMayDog, you can run your car on city and highway roads as well.

                      Answered on 11/27/2014 by Steve from AAP
                  • Q:

                    do you use the entire contents per 1 tank of gas? how often should you add it
                    Asked on 11/24/2014 by toad from arkansas

                    1 answer

                    • CUSTOMER CARE

                      A:

                      I'm glad to help, Toad! Sea Foam recommends an average of 1 ounce Sea Foam Motor Treatment to each gallon of Gasoline (including 5%, 10%, 12% & 15% Ethanol) and Diesel fuel, including (off road low sulfur) and Ultra Low Sulfur blends. With any vehicle or system using E-85 fuel, use 2 ounces Sea foam per gallon of the fuel. For Ultra Low Sulfur Diesel blends, Sea Foam recommends a minimum of 1 ounce Sea Foam Motor Treatment per gallon of the Ultra Low Sulfur Diesel fuel.

                      Answered on 11/25/2014 by Solomon
                  • Q:

                    Thank you Steve from AAP for your prompt answer. One more question for you though, is it important that operate your engine at highway speeds after putting in a can of Sea Foam so that it " blows the crud out " or does common city/highway mix driving suffice ? Just want to get the MAX value out of trying this new Sea Foam stuff.
                    Asked on 11/21/2014 by AllyMayDog from Western Missouri

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hello AllyMayDog, I will be happy to help you with that question. Highway driving (55 mph) is recommended because it puts a adequate load on the engine. If you can get that type of load in the city then that should be okay. Highway is highly recommended.

                      Answered on 12/1/2014 by Panda from AAP
                  • Q:

                    does seafoam come in a spray and what can you do for your motor
                    Asked on 10/31/2014 by Duke from Marshfield,Wis.54449

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Yes Duke, we do have Seafoam product in spray to clean internal parts of engine. The part number is SS14.

                      Answered on 11/3/2014 by Steve from AAP
                  • Q:

                    Our car has a check engine light notification and we took it to the mechanics to fix that and a power steering issue along with a burn out headlight. It went off but came back on the next day after we returned it home. Someone mentioned possibly trying a high octane fuel injector product to see if that didn't clean gunk out and stop the light. We have an Ohio E-Check next month and I am hoping this might help. Would it be beneficial to try? And even if it doesn't help, would it hurt the car? 2002 Hyundai Accent GL. Thanks.
                    Asked on 10/20/2014 by Diana Harkin from Akron, Ohio

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Diana, I'm glad to help you! As a service to all customers, Advance Auto Parts conducts check engine scans on most OBD II (1996 and newer) equipped vehicles except where prohibited by law. To confirm if the service is available at your desired store location, please contact the store directly. Once you have the code you can look it up to see what is causing the light to come on. Have you checked your gas cap? Even a loose cap can cause the light to come on. The code is 5 digits, for example P0300 or P0714.

                      Answered on 10/23/2014 by Solomon
                  • Q:

                    how much gas/fuel will one can treat?
                    Asked on 9/26/2014 by Hal from Moore, SC

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Hal, good question! It depends on what fuel you are treating. The premixed two cycle fuel of one can will treat 8 gallons of fuel. In any straight gas in cars, trucks or 4 cycle engines, 16 ounces of Sea Foam treats 16 gallons of fuel (ave. 1 ounce per gallon). Also, 16 ounces of Sea Foam will treat 25 gallons of diesel fuel.

                      Answered on 9/29/2014 by Solomon
                  • Q:

                    Can you use this product with E 85?
                    Asked on 8/3/2014 by Hertz a lot

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Good question! Yes, this Sea Foam is for gasoline, gas/ ethanol blends and diesel fuel.

                      Answered on 8/4/2014 by Vincent from AAP
                  • Q:

                    Will this work with mercury mariner hybrid? I have noticed that my gas mileage has gone down recently. If I use this do I just add the treatment right into the gas tank without doing anything else?
                    Asked on 7/30/2014 by jsarb

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Jsarb, good question! This is a 100% pure petroleum product that works instantly to clean deposits from internal engine parts and remove moisture from oil crankcases and fuel tanks. As a fuel system additive, Sea Foam® motor treatment will clean carburetors, fuel injectors, clean carbon, gum and varnish deposits, add lubricity to fuel, stabilize fuel and control moisture. As an oil system additive, Sea Foam® motor treatment controls moisture, gum, varnish and residue deposits. However, I would suggest that you to take your vehicle and get it thoroughly checked by a certified mechanic before buying any parts that may/may not solve the problem.

                      Answered on 7/31/2014 by Steve from AAP
                  • Q:

                    I have a gas hedge trimmer that runs on a gas/oil mix. Can this product be used in this case and will help with a situation of the trimmer is not running well I think because there was some older gas in the unit that may have gummed up the carb as it was running well when used 5 months ago.
                    Asked on 7/3/2014 by Golfer

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Golfer, glad to help you! The Sea Foam Motor Treatment works with all commonly available fuel types, including blended biodiesel varieties. It can be used on automotive, fleet, inboard/outboard marine, ATV, snowmobile, snow blower, motorcycle, tractor, lawnmower, chainsaw, 2 Cycle, 4-Cycle, and diesel Engines, carbureted and fuel-injected engines.

                      Answered on 7/4/2014 by Steve from AAP
                  • Q:

                    can i use the product on a v6 3.8l engine??
                    Asked on 7/1/2014 by Xavi from Hatillo, PR

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Xavi, glad to help you! Sea Foam is a safe and versatile additive that can be used in fuel, oil or added directly into the combustion chamber on 2-cycle, 4-cycle, rotary engines and can be used in diesel engine fuel and oil systems only. Sea Foam is a petroleum blended product, so it is as safe for seals, o-rings, sensors and other fuel system and engine components as the fuel or motor oil that runs the engine. Sea Foam contains NO harsh chemical detergents.

                      Answered on 7/2/2014 by Steve from AAP
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