Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz
Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz
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Sea Foam

Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz

6,345 ratings
Sea Foam SF16 Motor Treatment Automotive Additive, 16 ozSea Foam SF16 Motor Treatment Automotive Additive 16 oz24 pack Sea Foam SF16 Motor Treatment Automotive Additive 16 oz6 pack Sea Foam SF16 Motor Treatment Automotive Additive 16 oz12 pack Sea Foam SF16 Motor Treatment Automotive Additive 16 oz2 pack Sea Foam SF16 Motor Treatment Automotive Additive 16 oz
Pack SizeSingle

Key item features

  • Fuel System Cleaning: Cleans fuel injector and carburetor passageways for improved engine performance.
  • Intake Valve Maintenance: Effectively cleans intake valves and chamber deposits to ensure optimal engine function.
  • Upper Cylinder Lubrication: Lubricates upper cylinders to reduce wear and extend engine life.
  • Crankcase Oil Treatment: Works in crankcase oil to liquefy harmful residues and deposits, maintaining engine cleanliness.
  • Fuel Stabilization: Stabilizes gas and diesel fuels for up to 2 years, preventing fuel degradation.
  • Versatile Compatibility: Suitable for any gas or diesel fuel blend and all motor oils, both conventional and synthetic.
  • Easy Application: Simple pour-in application for hassle-free use in both fuel and oil systems.
  • Lightweight Design: Assembled product weight is 1.05 lbs, making it easy to handle and store.
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Customer ratings & reviews

4.8 out of 5 stars
stars
6,345 ratings3,198 reviews
How item rating is calculated
  1. 5 stars90% (5,713)
  2. 4 stars7% (419)
  3. 3 stars2% (98)
  4. 2 stars0% (30)
  5. 1 star1% (85)

Reviews summary

Pros

  • : Helps engines run more efficiently in various vehicles.
  • : Cleans fuel systems, injectors, and carburetors.
  • : Simple to pour into gas tank or oil crankcase.
  • : Offers competitive pricing compared to other retailers.
  • : Improves fuel mileage and performance.

Neutral

  • : Can be smooth, but may still exhibit roughness.
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Showing 1-3 of 3,198 reviews

Nov 1, 2025
Reviewer name: Steven
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

GOOD STUFF

11/1/2025 As long the 16oz. bottle remains at the current price, unbeatable. More cost effective than the 20oz. I use it in an old RV. I got a check engine light for "left bank running lean" ? whatever that means. So I bought a buttload of this stuff, (75 gal. tank), cleaned the thottlebody with the SEAFOAM SS14 spray, replaced the MAP sensor and fuel filter. Ultimately I got the CE light to stay off (using a code reader from Harbor freight) and have been periodically running Seafoam ever since. Since the RV is only driven a couple thousand miles a year, the Seafoam also claims to be a fuel stabilizer while it is sitting between trips. I've considered using the MUCH CHEAPER SUPERTECH version, but my limited research tell me the SEAFOAM is probably safer.

Helpful?3LALJWLOZO2D16664932
Nov 14, 2025
Reviewer name: Roger
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Please use Sea Foam

Sea Foam is not just good, it is a necessity for cars using play gas, gas with corn oil. Ethanol gas loves water and is bad for your engine. So use Sea Foam or your choice of something to keep water in your ethanol gas down. This will help your engine and your gas tank. Just follow directions on the container. Take this from someone who has recently cleaned one gas tank and replaced the other.

Helpful?3LALJWLOZO2D16664932
Nov 3, 2025
Reviewer name: Lynn
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This and a tank of gas cleared check engine light

Its the best for check engine light due to “3rd cylinder misfire “ per my mechanic. So we dumped a can in a full tank of gas. It was running rough besides engine light on. Be aware that it will smoke! When 3/4 of gas was gone engine light shut off and runs better than in years!

Helpful?3LALJWLOZO2D16664932
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was $9.99
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