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

from nickname

Had a slightly rough idle in a 2015 suzuki 115 with low hours. Ran through a treatment and the idle smoothed out and got a small(.2 nmpg) bump in fuel economy.

from Rodpwr

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.

from EL'DUCE

[This review was collected as part of a promotion.] We were way up the river and my grandkids were catching some nice Catfish so with tank full we had are limit ,Heading to the dock my boat wouldn't get over 3 Gran, on the tack. My 45 horse Merc ,was struggling with the kids and tank full fish I ...

from Bigdiesel9851

My 115 4-Stroke has always had a whining noise and I have had it checked several times since it's under warranty and the mechanics tell me nothing is wrong and it's just how my outboard is...so I've just gotten use to it the past 6 months. Well all that changed today!!! I put in the Seafoam M...

from fdm59

I didn't get to use this yet, I have to add more fuel to my tank before I can add this to it. But the Seafoam in my truck engine is amazing! I look forward to using this in my boat!