Nulon Petrol Fuel System Cleaner 500ml Nulon Pro-Strength Petrol Fuel System Extreme Clean contains the world's leading polyetheramine fuel system cleaning technology that cleans fuel injectors, combustion chambers and inlet valves of power-robbing carbon deposits in just 1 tank. This product improves acceleration, fuel economy and promotes easier starting and smoother idle. Performance tested and proven. Try Pro-StrengthPetrol Fuel System Extreme Clean and feel the performance improvement. Repco's range of fuel additives cover a number of options to ensure your car performs to its potential and provides long term benefits as you clock up the kilometres. Products such as octane booster and fuel injector cleaner are both worthwhile additions to any tank of fuel while many of the fuel stabiliser products can help with providing longer term protection for your vehicle. Caring for your cars performance and helping to keep those substantial fuel bills down are just 2 areas where running a quality additive through your fuel system will pay dividends in both the short and long terms. Both new and old vehicles can benefit from regular doses of these additives and with the modern science providing real world examples of the effectiveness of these it pays to keep a bottle or 2 handy for ongoing top ups.