Pour the fuel injector cleaner into the fuel tank Open the bottle and pour the fuel injector cleaner. Use the funnel if one is provided with the bottle so nothing spills out.

Fuel system cleaners are cheap and plentiful at automotive stores, but do they actually do all the things that they claim? We took a look to find out.

With auto part stores advising you to use a fuel injector cleaner, you may think it's the wise thing to do. However, is it actually worth the time and money?

The best fuel injector cleaners can help increase your car's performance and fuel economy. Check out AutoGuide.com's picks.

Fuel injectors interact with the exhaust system and are responsible for your engine working. This article will discuss their function, the importance of cleaning them, and give you symptoms that point ...

We’ve tested a bunch of pour-in fuel additives in Fact or Fiction over the years. Can you really blame us? But they seem too good to be true.

Such an additive is called a fuel-system cleaner or even a fuel-tank cleaner, although we'll get to whether the latter claim is actually accurate.

Jonathan Kasule of Rover Motors, Bukoto says the fuel cleaners actually help save fuel. How effective are fuel system cleaners?

These are the top fuel injector cleaners for high-mileage, direct-injection and diesel engines.