„ injectors problem is fuel..“ unleaded fuel contains wax and varnish which are called olefins, which cover engine and protect it, in order to replace lead. This is good for engine but injectors will get damaged. In order to maintain maximum fuel economy and engine performance, it is necessary, et pihustit oleksid in a good work condition. product cleans injectors and regular use helps to keep work condition engine , fuel system and prevents harmful depsits accumulation inside injectors , carburettor and in valves. use: pour additive empty into the tank and then immediately refuel. For the best results use additive after each 4800 km. suitable for use also with catalyst cars.