Adding 16 ounces of fuel injector cleaner to your tank improves the car performance by miles. It is one of the cheapest and best methods to solve common car problems like hard starting, low gas mileage, stalling, etc.

Top Fuel Injector Cleaners list

NameRating (out of 5)Price
Lucas 10013 Fuel Treatment - 1 Gallon
Red Line (60103) Complete SI-1 Fuel System Cleaner - 15 Ounce
Royal Purple 11722 Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. Bottle
4.5$70.66 (Pack of 6)
Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz., (Pack of 6)

4.6$40.86 (Pack of 6)
Sea Foam SF-16 Motor Treatment - 16 oz.

STA-BIL 22208 Fuel Stabilizer - 8 oz.

How to add fuel injector cleaner

The job of the fuel injector is to spray fuel inside the system. It is one of the most critical components needed for the smooth running of your car. Generally it is maintenance free but years of neglect towards your engine or driving on low quality gasoline will clog it gradually. The clogging will affect its spraying pattern and as a result it will spray less fuel than needed and in turn hurt your car performance. Once dirt and other deposits clog it, just add any of the six mentioned fuel injection cleaners to your car.

You need to empty your tank. Add the recommended amount of the fuel injection cleaner to the tank as mentioned on the bottle. Generally it is one ounce per gallon. So if you have added 15 ounce of cleaner, you can add fifteen to twenty gallons of gas over it.

Go for the drive and you will start to notice the difference in car performance once you have driven thirty forty miles on the road. The car will run smoothly and the engine related problems will disappear.

Adding Cleaner is most easy way to get rid of deposit, restore spray pattern and to improve car mileage. A small sixteen ounce bottle costing ten dollars does the same job as a costly three hundred dollars cleaning charge on the service stations.

How to check injectors?

Open the hood and place flashlight over injectors. See the spray pattern coming out of fuel injectors. If it is not uniform or a conical spray pattern is not falling on throttle plates, it is clogged. You can also check the tip of the injectors for varnish or other deposits.

How to avoid clogging problem?

Always buy premium gasoline as fuel injector solvents are added in it. But if it does not fit in your budget, then fill the fourth tank with it. Purchase gas from busy gas stations as stored gasoline is contaminated with dirt and water.

If adding fuel injector cleaner does not solve your problem then you have to replace the injectors. But nine out of ten times adding it solves all your car performance related problems easily.

Here are some reviews of the best fuel injector cleaners out there.

Royal Purple 11722 Max-Clean

Royal Purple 11722

This is another great product from Royal Purple. I recently added a can of it to twenty gallons of gas in my car. I could feel the difference once the car travelled twenty five miles, as it ran better and smoothly. It will increase your fuel mileage by approximately 1 mile per gallon. It also helps in fuel storage. But it is slightly expansively priced at fifteen dollar for a twenty Ounce bottle. People with high end cars are buying this.

Click here to see price and reviews at Amazon.com

Red Line 60103 SI-1

Red Line 60103


If you do not believe in the magic of fuel cleaners, try Red Line. It will change your belief. The old car will start like the new one and add to that better performance and gain in gas mileage. The bottle design is bad as it lacks the long tip. So use a funnel to empty it. The fifteen ounce bottle is available at 11 dollars. It is one of the best fuel cleaners in the market and is very inexpensive.

Click here to see price and reviews at Amazon.com

Lucas 10013 Fuel Treatment

Lucas 10013

Gets rid of pre-ignition problems and maximises fuel efficiency. Lucas is a trusted name and this cleaner adds to its reputation. Apart from cleaning injectors, it also lubricates the pump better. Trust me that your car will even sound better. The best thing is its price. A gallon costs just 21 dollar and comes with free shipping.

Click here to see price and reviews at Amazon.com

Chevron 67740-CASE Techron Concentrate Plus


One of the best options available in the market if you want to cut down on your maintenance cost. Gets rid of rough idle and is very effective for other engine parts also. An increase of 10% on gas mileage is expected on any kind of vehicle. Do not use more amount than the recommended on the bottle as it can deteriorate plastic around the fuel line.
Click here to see price and reviews at Amazon.com
Sea Foam SF-16 Motor Treatment

Sea Foam Motor Treatment

A new product that is becoming popular in very short time as it is considered last resort for automobile engines. If nothing else works, try this and you will not be disappointed. It is expansive and shipping is free on only purchases of over twenty five dollars. The sixteen ounce bottle is available at 10 dollars and 1 gallon at 63 dollars.
Click here to see price and reviews at Amazon.com
STA-BIL 22208 Fuel Stabilizer

STA-BIL 22208

You do not need to drain fuel before adding this cleaner. Another plus is that it keeps the gasoline fresh for around six months. So if you store gasoline for mowers, blowers, generators, chainsaw, leaf blowers or any other yard machines or power equipment or car – this is the best choice. Your machine will start even after five months in one go. It is available in the 4,8,10,16,32 ounce bottles.
Click here to see price and reviews at Amazon.com