Using a marine fuel stabiliser is a great way to keep your boat running smoothly and ensure reliable starts all year round.
If you own a boat or personal watercraft, you’ve probably dealt with issues caused by fuel, whether it’s a diesel or petrol engine.
Nothing spoils a weekend getaway faster than a boat that won’t start or run properly. No one wants to be stranded on the water or spend their precious time fixing engine problems.
A good marine fuel stabiliser can save you from the hassle. It's a small investment that can prevent a lot of stress and keep your boating trips fun and worry-free.
What is a marine fuel stabiliser?
Marine fuel stabiliser is a specialised additive designed to be mixed with boat fuel to prevent degradation and improve performance. Unlike regular fuel stabilisers used in cars, marine stabilisers are formulated to handle the unique challenges presented by marine environments, such as higher moisture levels and longer periods of fuel storage.
The challenges of marine fuel storage
Storing fuel has a few challenges that can compromise fuel quality and engine performance:
Ethanol in fuel
Most marine fuels contain ethanol, which can attract moisture from the air, leading to water contamination. This can cause phase separation, where water and ethanol separate from the fuel, leading to engine issues.
Corrosion
Boats often face harsher environmental conditions, such as salty sea air, which can accelerate corrosion in the fuel system.
Fuel Degredation
Fuel can degrade over time, especially when stored for long periods. Degraded fuel can form gum and varnish deposits in the engine, leading to poor performance and potential damage.
Benefits of Marine Fuel Stabiliser
Using a marine fuel stabiliser offers many advantages that can help maintain your boat's engine and fuel system.
Prevents fuel degradation
Stabilisers slow down the oxidation process, keeping the fuel fresh for longer periods. This is particularly beneficial during off-season storage.
Improves engine performance
By keeping the fuel clean and preventing the formation of deposits, stabilisers help maintain optimal engine performance.
Reduces phase separation
Marine fuel stabilisers can help reduce the risk of phase separation by keeping ethanol and water mixed with the fuel, ensuring consistent combustion.
What should you use a boat fuel stabiliser?
Fuel stabilisers for boats should be used regularly to maintain fuel quality and protect your engine.
Here are some specific instances when using a stabiliser is particularly important:
During period of storage
Always add a stabiliser to the fuel before storing your boat for the winter or any extended period. This helps keep the fuel fresh and prevents the formation of gum and varnish.
Before long trips
Using a stabiliser before long trips can ensure your fuel system remains clean and your engine performs optimally throughout the journey.
With ethanol-blended fuels
If your boat uses ethanol-blended fuel, it’s essential to use a stabiliser to prevent moisture absorption and phase separation.