Ratings may include incentivized customer reviews.
What Customers Are Saying
This product is effective at cleaning and maintaining fuel systems, injectors, carburetors, and engines across a variety of applications, including cars, trucks, boats, lawn equipment, and small engines. It helps restore performance, power, and fuel efficiency, and prevents issues like rough idling, hesitation, and hard starting, especially in older or stored equipment. The product stabilizes fuel and prevents gumming and varnish buildup during storage, and works well in both 2-stroke and 4-stroke engines, as well as diesel engines. Customers report using it regularly as a preventative maintenance measure and being highly satisfied with the results.
Customer review summary generated by AI, including incentivized reviews.What I always used
Would RecommendWhat I've used for years
Verified Purchaser
Gas additive
Would RecommendGreat gas additive
Verified Purchaser
Good fuel stabilizer.
Would RecommendI have started using Seafoam fuel additive to all my lawn mower and generator gas. I start with fresh gas each year. It seems to help keep it stabilized for a year. I run the generator quarterly and it starts on the first pull.
Verified Purchaser
Read instructions
Would RecommendProducts works per instructions
Verified Purchaser
Use it with an empty gas tank.
Would RecommendThis stuff is the best!
Verified Purchaser
Great fuel stabilizer and cleaner.
Would RecommendI have been using this product for years! It is a fuel stabilizer and fuel system cleaner all in one! I started my chainsaw that sat for 2 years with the fuel and ran perfectly!
Verified Purchaser
Great for winter storage.
Would RecommendI use it in my boat for winter storage and it works well never a problem when starting up in the spring.
From seafoamsales.com
It works
Would RecommendExcellent product
Verified Purchaser
Rick H
Did not help my gas in my mower to start. Could be my mower so I am unsure of this product
Verified Purchaser
We are loyal users of Sea Foam
Would RecommendHusband buys this for all of our cars...He tells me it is an additive that cleans and improves our car engines. He highly recommends it. From my point of view...It must work as promised...we extremely rarely have any engine issue.
Verified Purchaser
ordering process was easy and pick up was fast
Would Recommendgood
Verified Purchaser
A "fountain of youth" for my 2012 Soul!
Would RecommendI have a 2012 Kia Soul (base) with 155k. It had been slowly losing mileage and power over several months, despite regular maintenance. I found the Q&A section on your site, read the recommended treatments and user results, so I tried it. Put the directed amount into the crank case (cold engine), pegged it at 2k RPM until it reached operating temp, then let it sit overnight. The rest I put in the full gas tank (that use I've done before over the years). Driving to work the next morning, my old So...
From seafoamsales.com