'Get this 5 in 1 product, that will help you save money on injector cleaning, Fuel Tank rust servicing, frequent spark plugs purchasing, knocking and fuel saver. It also helps drain moisture in your fuel. Environmentally friendly. Restores lost power. Removes moisture from diesel tank and fuel lines. Removes carbon, varnish and gum deposits. Stops valve “pinging” and engine run-on. Prevents fuel lines freezing .Improves fuel econom Spark plugs last longer'