It's important to note that ethanol is hygroscopic. In other words, it absorbs moisture from the air. As a result of phase separation, the water/ethanol separates from the gasoline in the tank and settles to the bottom. This can lead to engine knock and other serious issues. This is where a marine fuel additive can help. In fact, Ultra Marine stabilizes fuel for up to 3 years!
Another key point is that we blend our boat fuel stabilizer with a vapor corrosion inhibitor, which protects against corrosion both above as well as below the fuel line for non-ferrous metals. Furthermore, Ultra Marine contains an advanced detergent that keeps your carburetor and fuel injectors clean, prevents ring sticking, and helps eliminate carbon and varnish build-up to keep your marine engine running like new.
Use our fuel stabilizer for boats both in-season and just before you store your boat.
Third-Party Test ResultsMultiple independent tests have proven the effectiveness of Ultra Marine™ boat fuel stabilizer:
ASTM Test D525 shows the time (in minutes) for fuel to become unstable (e.g. break down, form gums). This test showed that VP's fuel treatment for boats, Ultra Marine™, greatly increased fuel stabilization by more than 8x compared to fuel without a stabilizer additive.
Performed using the NACE Standards Test for ferrous metals. NACE International is the world's leading professional organization for the corrosion control industry. The test rates the ability of a metal to resist corrosion. A rating of 1 is poor while a rating of 5 is excellent. Our boat gas stabilizer received a 5-rating. In other words, it vastly improves fuel's corrosion resistance beyond fuel that doesn't contain our fuel additive.
ASTM Test D130. This test evaluates the degree to which a lubricant will corrode copper-containing materials. For example, bronze and brass. Test ratings range from 1a (slight but barely noticeable discoloration) to 4c (severely corroded, blackened, and pitted). Ultra Marine™ received the highest rating of 1a.
Cleaning (Nitrogen Content)
The cleaning test reveals the tested nitrogen content in Part per Million (PPM) of our products. Nitrogen content is a strong indicator of cleaning ability. Our stabilizer was shown to have a high nitrogen content of 80 PPM.
Advantages of Ultra Marine™ Gas Stabilizer for Boats
- Stops water/ethanol issues
- Keeps fuel fresh
- Cleans fuel injectors
- Protects plastic/rubber
- Bonds 2-cycle oil to gasoline
- Treats up to 240 gallons of fuel (908L)
Learn more about why it's a good idea to use a marine fuel stabilizer and boat fuel additive.