Injector cleaners are basically solvents that help clean out the fuel pathways. These bottles of fuel system cleaners are poured into the fuel tank. They start working to clean the entire fuel system by dissolving the gum and other residue collected in the fuel lines.

Does injector cleaner really work?

To put things bluntly; yes, fuel injector cleaner does work, but only if you're using it correctly. ... As explained earlier, it is able to remove carbon and other deposits in fuel lines, but in Techron it is added in low quantities, meaning it can take up to 5 full tanks of fuel before deposits are removed.

How long does injector cleaner take to work?

Although fuel injector cleaner starts working as soon as you put it into your vehicle's tank, it takes time for the effects to become noticeable. You should begin seeing results within 100 – 300 miles after you use fuel injector cleaner.