Ratings & Reviews for Sea Foam Marine Pro Ethanol/Gasoline Fuel Treatment 20 oz 1 pk

No Fail

I’ve used Pro for years. Never have any issues. My 1993 115 Johnson cranks in seconds no matter how long it sits. I use it every time I gas up. Excellent product!

Nothing Short of a Miracle

My Tohatsu 9.8 became submerged recently. Eventually, I was able to get it started but it would only idle. It would stall every time I tried to accelerate. I bought a can of Sea Foam Marine Pro and added it to a gallon of gas. At first there was no improvement but I let sit a couple of days and tried it again. This time it didn't stall anymore! Now it runs like new again! There's a reason why this product has been around for so long -- because it works.

Great Product!

I've been using all types of Seafoam products for years, and I will till I die! Works wonderfully!

Highly recommended!! Stuff is amazing and a must have for marine engines, lawnmowers small power tools etc. it has saved me many times.

Amazing product! Got my F150 Yamaha four stoke running great. Don’t know what’s in it but it works!!

Get this, use it, it works!

I'm convinced that running Seafoam in my rebuilt 92 200 Merc turned it around and has kept it running for going on 4 years. Really don't have a better explanation for it. Go Seafoam!! 👍🎣

Works great

Truck had a little stutter to it added a can, and after about a half a tank of fuel cleared it right up

Southern California Lifeguard Approved

I work as a full-time beach lifeguard in Southern California, where Personal Watercraft (PWCs) are an essential part of our job. Without them, we wouldn't be able to perform our duties effectively. In my Fire Department, we have made it a standard practice to add SEA FOAM to all our rescue vessels. SEA FOAM helps to keep our engines clean and in excellent condition, ensuring they are ready for use when we need them the most. Despite sitting idle for months at a time, our PWCs start with ease. Th...

Always works best

Keeps motor running good even after it sets for a few months

I believe in seafoam

I have been using seafood for years. I like the idea of the marine grade. I run a 2001 225 Yamaha 2 stroke, so I am particular what I use in it.

This good stuff

It's the sluggishness that I was having no, I don't have that problem anymore. I can get across the lake like I want to

Highly Recommended

I have a 12-year-old Mercury Opti Max, Sea Foam makes my old Mercury run like a dream.

it works

Started using seafoam on old motorcycles. So when I got a boat I use it in that

Works great

Use for smoother idling and all together boat motor operations. Also use in my truck

Works Great

Makes starting in the spring, after winter storage easy as pie. I have never had problems in the 10 years I have used Sea Foam

Worked Great, Fantastic!

I've used other Sea Foam products for years, when the Marine Pro came out, started using it & as usual worked like a charm. Before using my plugs seemed to foul out alot sooner, now last much longer, motor just runs smoother!

It Works!

I'm very pleased with this product. I would recommend it to everyone who has a gas engine of which is a 2 or 4 stroke.

Seafoam is my go too fuel treatment!

I have been using Seafoam for years. I have always used it in all of the boats I have owned for the past 20 years. I’ve forgotten to drain the fuel out of them and forgot to start them up and let them run out of fuel at the end of year. My 1996 Force 90 Hp (which is basically a mercury outboard) continues to run great. I’ve owned it since 2009 and I have only changed the spark plugs in it once. Seafoam keeps my boat, auto, and small engines running great, even if I leave them in storage for a c...

I have been using Sea Foam for years along with Stabil. for all of my boats and 1951 Willy’s Jeep which I also use Aviation fuel 100 octane without alcohol. Should I use this also in my Polaris utility side by side? I recently purchased a Polaris Side by Side And they told me to use Stabil but had problems with octane above 87 and also with Seafoam. I am just learning about how to use my new machine (toy). Please tell me your thoughts and give me guidance.

I'll never use anything else thank you Guys it's more than 5 stars