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 Details  
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 231 reviews)

Ratings Distribution

  • 5 Stars

     

    (177)

  • 4 Stars

     

    (39)

  • 3 Stars

     

    (8)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (4)

95%

of respondents would recommend this to a friend.

Pros

  • Easy to use (171)
  • Reliable (125)
  • Can withstand use (20)
  • Compact (18)
  • Does what it claims (3)

Cons

  • Difficult to use (3)

Best Uses

  • Upkeep (145)
  • Home garage (121)
  • 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 (73), Casual driver (72), Mechanic (33), Truck enthusiast (32), Competitive driver (11)

Most Liked Positive Review

 

GREAT for motorcycles!

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...Read complete review

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.

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 231 customers

Displaying reviews 1-10

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3.0

Always does the trick

By 

from salem, nh

About Me Auto Enthusiast, Mechanic

Verified Buyer
Helpful Reviewer

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

Always does the trick

Comment on this reviewHelp Icon(earn points)

 
5.0

on line order

By 

from illinois

About Me Casual Driver

Verified Buyer

Pros

  • Easy To Use

Cons

    Best Uses

    • Home Garage

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

    product worked liked advertised, very pleased

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    Great product

    By 

    from Galax va

    Verified Buyer

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

    Great product

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    A must in Marine motors

    By 

    from Tennessee

    About Me Casual Driver, Truck Enthusiast

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

    Had a 150 hp Mercury outboard, 2 cycle. It began occasionally stalling out completely at full throttle, I mean, from 60 mph to the motor died. I would be out in the lake searching for an electrical problem, it wouldn't start for about 5 plus minutes and then it would. By it just shutting completely down suddenly I thought it had to be like a kill switch safety etc... An older man with many years of experience of owning and running motors like this, said try a can of sea foam before digging so deep into this problem. He was so right. Fixed for good. Kept some sea foam maybe every 10 to 20 fill ups. I bought the motor new, it was never abused. Just nature of them, I guess?? It took it a couple of years to give me that problem of stalling. Kept it for a couple more after and never had a problem. I now use it in everything I own.

    Comment on this reviewHelp Icon(earn points)

    (1 of 10 customers found this review helpful)

     
    1.0

    Used on 3 engines but didn't work on any of them; worthless!

    By 

    from Dallas, TX

    About Me Auto Enthusiast

    3 or more reviews submitted

    Pros

    • None

    Cons

    • Worthless

    Best Uses

    • None Zero Zilch

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

    Applied to lawnmower (6HP), small 2-stroke trimmer, and 2001 Ford Ranger but saw no improvement The reason I bought it was due to having starting issues with trimmer. After reading the reviews I was so optimistic that I thought it would add to all 3 engines. It just does NOT work! Frustrated with the trimmer not starting, I searched/found online many use the Lucas Fuel treatment.
    Oh my, oh my!... I wish I new of it long ago. Trimmer started on 1st pull & now all 3 engines work great!

    Comment on this reviewHelp Icon(earn points)

    (3 of 3 customers found this review helpful)

     
    5.0

    Try This First For Rough Idling, You'll Be Amazed

    By 

    from Northern Virginia

    About Me Casual Driver, Female Car Owner, Fix My Own

    Pros

    • Easy To Use
    • Reliable
    • Works Almost Instantly
    • Worth The Money

    Cons

    • Easier With Funnel

    Best Uses

    • Home Garage
    • Rough Idling
    • Upkeep

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

    I was headed out of town when the MIL light in my 2002 VW Jetta 1.8L Turbo illuminated. It was idling REALLY rough and then the MIL light started blinking (never a good sign) so I stopped at Advance Auto Parts to get a diagnostic. The car threw codes P0300, P0202, P0302, and P420. I hadn't used Sea Foam in a few months so I decided to buy some and add it to my half tank of gas. Couldn't hurt, right? Drove around for a few miles...the rough idling totally stopped. I cleared all the codes (MIL light turned off) and drove around for another few miles to see if it would come back on. Tried to use the diagnostic a few more times but nothing triggered it. Drove the 12 or so miles back to my house and everything seems to be just fine.
    This stuff is great!! Seriously, try this first if your car throwing ignition coil codes, catalytic converter codes, or other related codes.

    Comment on this reviewHelp Icon(earn points)

    (9 of 15 customers found this review helpful)

     
    5.0

    I have 2003 Chev Tahoe ,150,000 mile

    By 

    from University City, Mo

    About Me Casual Driver

    Pros

    • Easy To Use
    • Reliable

    Cons

      Best Uses

      • Upkeep

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

      my gas miles was 14.9 and now using Sea Foam i get 17.2 miles per gal. my truck drives like new now. once a month i use Sea Foam.

      Comment on this reviewHelp Icon(earn points)

      (8 of 11 customers found this review helpful)

       
      5.0

      Magic in a can!

      By 

      from Northern NY

      About Me DIY'er

      Pros

      • Easy To Use
      • Money Saver

      Cons

        Best Uses

        • Dirty Carb Cleaner

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

        My 5 year old snowblower was starting to surge and sound as if it was running out of gas even with a full tank. I figured it was the carb and anticipated the pain of loading it into my truck ( no trailer) and then the cost and wait knowing a snow storm is on its way bringing 12-14 inches. I bought this stuff and poured an oz into my snowblower gas tanks. I ran it for three minutes then did a big strip to widen my driveway and by the time I was done ( 10 minutes total) my snowblower was running smooth as ever! Best money I have ever spent. I'll use this in all my small engines around the property now.

        Comment on this reviewHelp Icon(earn points)

        (6 of 28 customers found this review helpful)

         
        1.0

        does not do what it is suppose to do

        By 

        from Tennessee

        About Me Casual Driver

        Pros

        • Easy To Use

        Cons

        • My Gas Mileage Went Down

        Best Uses

        • Will Not Use Anymore

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

        I used a can of Sea Foam in my 2001 Subaru Outback and immediately my gas mileage decreased by 4 miles to the gallon. The car does not run any better but it sure killed my gas mileage. I was getting 24 mpg around town and now I get 20 mpg. Don't want anymore of your Sea Foam.

        Comment on this reviewHelp Icon(earn points)

        (5 of 9 customers found this review helpful)

         
        5.0

        The best

        By 

        from Mayville , WI

        About Me Casual Driver

        Verified Buyer
        Helpful Reviewer

        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 reviewHelp Icon(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. For further assistance, please review your support options on our Contact Us page.

          120 Questions | 139 Answers
          Displaying questions 1-10Previous | Next »
          • Q:

            How long does it take to see results, do you have to use up the entire tank until you see results? I had an empty tank when I put this treatment in my vehicle and it seems to have already started to work but I was not sure if it takes a certain amount of miles to be ran on the car or maybe a full tank to see full results.

            Thanks!
            Asked on 6/6/2016 by Wendy from United States

            1 answer

            • CUSTOMER CARE

              A:

              Hi Wendy, I'm happy to help you! To maintain a healthy engine or when stabilizing stored fuel, Sea Foam's maintenance recommendation for all fuel types is 1 ounce per gallon of fuel. One pint treats up to 16 gallons. One gallon treats up to 128 gallons. Just pour directly into the tank. For engines that replenish fuel regularly, use 1 or 2 cans every 2,000 to 5,000 drive miles. For engines using fuel older than 3 weeks, add Sea Foam to every tank of fresh fuel. Remember that Sea Foam in your tank at all times is always cleaning and lubricating the entire fuel system.

              Answered on 6/6/2016 by Solomon from AAP
          • Q:

            I have a chain saw that set up over the winter and now it will not start. Will Sea Foam help to get it started? If so how much do I use and what are the instructions?
            Asked on 4/8/2016 by Dan from Memphis TN

            1 answer

            • CUSTOMER CARE

              A:

              Hi Dan, glad to assist you! The Sea Foam Motor Treatment for Gas and Diesel Engines (16 FL. Oz.) (Part No. SF16) will work fine on any 2 cycle, 4 cycle, diesel engines, carburetor and fuel-injection engines. It can be added to gasoline and diesel fuel, oil crankcases, and gasoline induction/vacuum systems.For more indormation, please copy and paste this link. URL - http://seafoamsales.com/cleaning-two-stroke-engines/#sthash.B6elswzw.dpuf

              Answered on 4/11/2016 by Steve from AAP
          • Q:

            Would seafoam work with my 2002 Mercedez Benz CLK320. It's having a rough idle.
            Asked on 2/17/2016 by Ed from San Jose CA

            1 answer

            • CUSTOMER CARE

              A:

              Hi ED, glad to assist you! The Sea Foam Motor Treatment for Gas and Diesel Engines (16 FL. Oz.) (Part No. SF16) will work fine on your 2002 Mercedez Benz CLK320. This product will work fine on any 2 cycle, 4 cycle, diesel engines, carburetor and fuel-injection engines. It can be added to gasoline and diesel fuel, oil crankcases, and gasoline induction/vacuum systems. See more at: http://seafoamsales.com/cleaning-two-stroke-engines/#sthash.B6elswzw.dpuf

              Answered on 2/18/2016 by Steve from AAP
          • Q:

            If I use your sea foam gas treatment, do I need to use a sea foam oil treatment product? if so what product should I buy and generally how do i use it.

            Thanks james
            Asked on 12/18/2015 by james from Chattanooga, Tn

            1 answer

          • Q:

            I'm having issues with my car losing a little bit of power going uphill. It's barely noticeable, but I notice it. No one else seems to. It's a 2006 Chevy Impala with 205,000 miles. It looks brand new inside and out so I continue to drive it until the wheels fall off. I assume this Sea Foam goes directly into the gas tank?
            Asked on 12/8/2015 by motif88keys

            1 answer

            • CUSTOMER CARE

              A:

              Hi, I am happy to help! The Sea Foam part( SF 16) is a great way to help your car perform better. The treatment is pour into a full tank of gas, and yes it goes directly thru the tank.

              Answered on 12/9/2015 by Roy from AAP
          • Q:

            I was wanting to know should I use this Product in my 97 Toyota Corrlia,it has a 4cly.1.5 liter motor,I got a Oil change on it recently and the guy at the place said I need to replace the Intake Idle control valve.Would this product help this problem,maybe Temporary,until I get the part replaced or do I need to get the part replaced.It Idles up and down until I put it into gear.Please Email me with your opions.Mechanics and DIYS.Please let me know what my Options are.Thanks
            Asked on 9/23/2015 by Zman from Tallahassee,Fl

            1 answer

            • CUSTOMER CARE

              A:

              Hi Zman, I'm glad to assist you. Replacing the Intake Idle control valve would be a better solution. Without the presence of your vehicle we would not be able to properly diagnose it, nor provide you with a 100% answer. I would suggest that you 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 10/3/2015 by Solomon
          • Q:

            I have a 1997 Mercruiser engine in my boat. I am having trouble with the engine bogging down a little bit when I accelerate. Will this help and I have about 12 gallons of gas in the tank how much should i use?
            Asked on 8/5/2015 by Thomas from Oklahoma City

            2 answers

            • A:

              Use 1oz for every gallon of gas. If you see any results repeat.

              Answered on 9/9/2015 by Harleyman63 from La crosse, wi
            • CUSTOMER CARE

              A:

              Great question Thomas, I will be happy to help. I can tell you it certainly won't hurt your engine and a great place to start. You may have other issues going on but Sea Foam will definitely clean out the fuel system. To clean the carburetor bowl and jets the manufacturer recommends that you add 2 oz. of Sea Foam Motor Treatment to each gallon of gas oil mix. Sea Foam Motor Treatment will slowly re-liquefy old fuel and petroleum varnish residue deposits, clearing passages and restoring normal functionality. If you wish to spray atomized Sea Foam Motor Treatment directly into the carburetor throat with the engine warm and running, use Sea Foam Spray Top Engine Cleaner and Lube (Sea Foam Motor Treatment in an aerosol can). - See more at: http://seafoamsales.com/cleaning-two-stroke-engines/#sthash.B6elswzw.dpuf

              Answered on 8/6/2015 by JJMO ASE Parts Pro from AAP
          • Q:

            I have a 2011 subaru sti, and i was wondering if this product would work well with my engine, even if its a turbo.
            Asked on 7/13/2015 by saintloon from milwaukee

            1 answer

            • CUSTOMER CARE

              A:

              Hi Saintloon, glad to assist you! The Sea Foam Motor Treatment for Gas and Diesel Engines (16 FL. Oz.) (Part No. SF16) will work fine on your 2011 Subaru Impreza STI. This product will work fine on any 2 cycle, 4 cycle, diesel engines, carburetor and fuel-injection engines. It can be added to gasoline and diesel fuel, oil crankcases, and gasoline induction/vacuum systems.

              Answered on 7/14/2015 by Steve from AAP
          • Q:

            how much do I add to oil . and how long do I leave it in oil in my 2001chev truck
            Asked on 7/11/2015 by len from newton iowa

            1 answer

            • CUSTOMER CARE

              A:

              Hi Len, glad to help you! The Sea Foam Motor Treatment for Gas and Diesel Engines (16 fl. oz.) (Part No. SF16) will treat one ounce per gallon. For more information, I would recommend that you contact the Seafoam sales team directly at (952)938-4811 and they will be in a better position to assist you.

              Answered on 7/13/2015 by Steve from AAP
          • Q:

            do you have to drain some oil out to put it in your engine and how much to put in at a time
            Asked on 7/8/2015 by scott, sc from columbia,south carolina

            1 answer

            • CUSTOMER CARE

              A:

              No, Scott, you need not have top drain the oil before using the product. Sea Foam Motor Treatment is safe for both long-term cleaning and short-term, pre-service cleaning. Using Sea Foam Motor Treatment in your oil, at 1 ½ ounces per quart, is a safe way to clean a crankcase and quiet noisy lifters as you drive. For more information, I would recommend that you contact the Seafoam sales team directly at (952)938-4811 and they will be in a better position to assist you.

              Answered on 7/8/2015 by Steve from AAP
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