Briggs stratton fuel fit stabiliser 100ml bottle 992380use briggs stratton fuel fit™ fuel stabiliser products to help keep your fuel fit for up to 3 years, promote quick starting, and clean the fuel system'. '.strtoupper('b')riggs stratton’s new and improved fuel fit® keeps fuel fresh and protects engines more than ever before.fuel fit not only keeps the carburettor clean for easy starting but now also protects against the corrosive effects of ethanol and maintains fuel stability for up to 3 years.currently in the uk unleaded fuel can contain up to 15% ethanol.ethanol is hydroscopic meaning that it attracts readily bonds with atmospheric moisture.if ethanol and water are mixed together it becomes corrosive to rubber and metal components.petrol also begins to degrade, forming varnishes gums, clogging fuel lines, sticking valves blocking carburettors, resulting in difficult starting, overheating poor performance.fuel fit’s newly developed advanced ‘triple antioxidant’ formulation with additional ingredients protects your engines through its latest technologycorrosion inhibitor that forms a protective barrier on metal parts against harmful effects of ethanol water mixdetergent ingredients to prevent gum and varnish build up on engine partsmetal de activators which stop chemical reactions caused by dissolved metals in fuel100ml fuel fit treats up to 10 litres of unleaded fuel