Sea Foam Marine Pro Fuel Treatment for Marine Engines, 20 oz
Sea Foam Marine Pro Fuel Treatment for Marine Engines, 20 oz
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Sea Foam

Sea Foam Marine Pro Fuel Treatment for Marine Engines, 20 oz

4.8 stars out of 338 reviews
(4.8)|
338 ratings
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Pack Size:Single

Key item features

  • Comprehensive Cleaning: Add to fuel to clean fuel injectors and carburetor jets
  • Engine Lubrication: Cleans and lubricates critical upper engine areas
  • Wear Reduction: Helps reduce long-term engine wear
  • Corrosion Prevention: Helps prevent corrosion caused by ethanol and water
  • Fuel Stabilization: Stabilizes tank fuel up to 2 years
  • Universal Compatibility: Safe for all 2- and 4-stroke gasoline marine engines, inboard & outboard
  • Lightweight Design: Assembled Product Weight: 1.09 lb
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was $16.99
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Customer ratings & reviews

4.8 out of 5 stars
stars338 ratings250 reviews
How item rating is calculated
  1. 5 stars93% (313)
  2. 4 stars4% (14)
  3. 3 stars1% (3)
  4. 2 stars0% (1)
  5. 1 star2% (7)

Reviews summary

Pros
  • : Offers affordable fuel system maintenance options.
  • : Provides easier starts and smoother operation.
  • : Used in various types of vehicles with internal combustion.
  • : Helps maintain performance and resolves issues.
  • : Prevents fuel spoilage and keeps it fresh.
Neutral
  • : Can be smooth, but may be rough in some cases.
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Showing 1-3 of 250 reviews

Sep 13, 2025
Walmart customer
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Seaaaaaaafoam!

Always dump a can in before winterizing my jet ski. Stabilizes the fuel and helps it start up first time every year.

Helpful?401BNF0WNWMH558344202
Nov 2, 2025
maninthekitchen
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

been using for years

i use seafoam in all my small engines , keeps fuel fresh, helps clean carb

Helpful?401BNF0WNWMH558344202
Jan 9, 2026
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I have used this before but not from you. Your price was better and it was delivered.

Incentivized Review
Helpful?401BNF0WNWMH558344202