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Sea Foam SF16 Motor Treatment and Fuel Additive, 16 oz.

Manufacturer

Sea Foam

<h3>About Sea Foam: Over 80 Years of Engine Care</h3><p><strong>Sea Foam</strong> has one of the most storied origin stories in the automotive aftermarket world. The brand's history dates back to the 1930s, when Fred Fandrei — a salesman in the petroleum industry — grew frustrated spending more time repairing his outboard motor than actually fishing. That frustration led him to experiment with petroleum-based formulations that could prevent fuel from breaking down and gumming up engines. By the early 1940s, the product was trademarked, and Sea Foam Sales Company was officially born. Early endorsements from Evinrude Outboard Motor and Martin Motors helped cement the brand's credibility, and it has been trusted by professional mechanics and DIY enthusiasts alike ever since.</p><h3>What Makes Sea Foam Different</h3><p>Unlike many chemical treatments on the market, Sea Foam products are made from <strong>100% petroleum-based cleaning and lubricating ingredients</strong> — meaning they're engineered to work safely within the chemistry of fuel and oil systems without introducing harsh solvents or incompatible compounds. This approach has earned Sea Foam a reputation for being both effective and gentle, making its products appropriate for a wide range of gas and diesel engines, from daily drivers and high-mileage trucks to motorcycles, outboards, lawn equipment, snowmobiles, and chainsaws.</p><p>At the heart of the Sea Foam lineup is its flagship <a href="/7748-sea-foam-fuel-additive-12140">fuel additive</a>, Sea Foam Motor Treatment. When added to a gas tank, it cleans injectors and carburetor passageways, stabilizes fuel for up to two years, controls moisture, and lubricates upper cylinders. When poured into the crankcase, it works as a powerful <a href="/7748-sea-foam-oil-additives-200733">oil additive</a>, liquefying harmful residues and deposits that restrict oil flow and cause problems like rough idle, oil burning, and loss of power.</p><h3>A Complete Engine Care System</h3><p>Sea Foam's product range goes well beyond its iconic Motor Treatment bottle. The Sea Foam Spray line serves as a direct <a href="/7748-sea-foam-engine-tune-up-carburetor-choke-carbon-cleaners-201932">engine tune-up and carbon cleaner</a>, working through a gas engine's upper air intake to dissolve stubborn carbon deposits from intake runners, intake valves, and combustion chamber areas — reaching places that tank additives simply cannot. A complementary <a href="/7748-sea-foam-engine-tune-up-carburetor-choke-carbon-cleaners-200375">carburetor and choke cleaner</a> formula keeps fuel delivery components free of varnish and gum buildup that can cause hard starting and hesitation.</p><p>For vehicles experiencing rough shifting, erratic steering response, or sluggish hydraulic systems, Sea Foam's Trans Tune product is a trusted solution. It's formulated to dissolve gum, varnish, and moisture from <a href="/7748-sea-foam-power-steering-fluid-11395">power steering fluid</a> systems, automatic transmissions, and hydraulic circuits, helping restore smooth, responsive operation without a full fluid flush.</p><h3>Trusted by Mechanics, Built for Everyone</h3><p>For more than 80 years, Sea Foam has built a loyal following among professional mechanics, weekend wrenchers, outdoor equipment owners, and boating enthusiasts. The brand's philosophy — safe, proven ingredients in simple pour-in applications — means that anyone can use these products with confidence, regardless of mechanical experience. Whether you're prepping a vehicle for winter storage, troubleshooting a rough idle, or performing routine fuel system maintenance, Sea Foam offers a straightforward solution backed by decades of real-world results.</p>

Part Number

SF16
06/02/2036 6:22 PM
Sale Price

$9.00

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Sea Foam SF16 Motor Treatment is a 100% pure petroleum-based formula designed for use in all gasoline and diesel engines, including both 2-cycle and 4-cycle applications. This versatile treatment works throughout your engine's fuel and oil systems to clean, lubricate, and protect critical components.

Key Features:

  • Cleans dirty engine parts internally by safely removing harmful gums, varnish, and carbon deposits
  • Removes moisture from oil crankcases and fuel tanks to prevent corrosion
  • Stabilizes and conditions fuel to prevent degradation during storage
  • Safe for catalytic converters and oxygen sensors
  • Works in crankcase oil, fuel tanks, and diesel fuel systems
  • Ideal for seasonal equipment storage and long-term vehicle protection

For optimal engine performance and cleanliness, Sea Foam recommends adding SF16 to your fuel system every 5,000 miles. The 16-ounce bottle treats up to 16 gallons of fuel or one quart of oil. Safe for use in cars, trucks, motorcycles, ATVs, marine engines, small engines, and all powersports equipment.

Products specifications

Size

16 oz.

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my stars tell it all

Super simple to navigate the site and it seems they have already answered all questions before they are asked. Good to deal with a total information site.

Good price, somewhat timely shipping.

The experience was great! Purchasing was easy and we received our item and installed it with no problems.

Outstanding service and pricing. Perfect one stop shop for all my automotive needs.

Great prices, much better than manufacturer website

First time I ordered from the company and they had great prices.

placing the order was very simple.

ty

price and discount always welcome to me!

Great Prices, Easy Shopping, Fantastic Inventory!

Found This to be the best price Thanks

Great Prices and fast shipping rates. The fuel gauge/sending unit doesn't work correctly.

Fast shipping, Good communication, Highly recommended.!!!

Easy shopping experience

Autoplicity had the lowest price(s) I could find on the individual item(s), and, even after shipping was added, my order still cost less than it would have at other places with "free shipping." It's also nice that you can use something like Google Checkout instead of having to create an account at Autoplicity to checkout...one less account/password to worry about keeping track of. My order was packed well, arrived safe and sound, and arrived well within the expected time frame.<br><br>Great prices, proper packing, and good turnaround...what more can you ask for?

Fast shipping! Good prices! Will recommend to others

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