The most economical way of protecting your fuel is to buy this great value 250ml bottle of fuel stabiliser that treats 12.5 litres of fuel. Add just 100ml to 5 litres of fuel and keep your fuel fresh up to 2 years.
WHAT DOES MOUNTFIELD FUEL STABILISER DO?
Mountfield Universal Fuel Stabiliser contains a carefully balanced formulation based on light hydrocarbon fractions and components specially selected for their performance enhancing properties:
Prevents the degradation of fuel – fuel stays fresh for up to 2 years.
Protects the fuel against oxidation.Prevents gum and varnish build up.
Protects the engine and fuel system parts against rust and corrosion.
WHY DO I NEED TO USE FUEL STABILISER?
Modern petrol now typically contains 5% ethanol. Ethanol readily bonds with atmospheric moisture creating an ethanol-water mix and this oxidisation creates what is known as stale fuel.
As fuel oxidises it can turn to gum and clog jets and other openings in the fuel system. Gummed up carburettors cause serious problems in power equipment such as lawn mowers that see intermittent use or have long periods of storage.
Ethanol blended fuel is also a corrosive substance that can cause the gradual destruction of the metal used in the fuel systems of outdoor power equipment (particularly soft metals such as brass and aluminium). Ethanol also absorbs water, drawing it into the fuel mixture. Water is highly corrosive and when ethanol and water combine it can cause performance problems and fuel system damage.
Good quality fuel stored in an airtight container should stay stable, not oxidise and stay fresh. However the typical fuel tank of a lawn mower isn’t ideal for storing fuel. It isn’t 100% airtight, so fuel will oxidise in the tank, and over time (as little as 30 days) will go stale.
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