What is the Best Fuel Injector Cleaner? Your Definitive Guide…

Fuel injector cleaners are a unique class of very specialized fuel additives whose chief function is to clean and maintain the fuel injection system in your car. Unless your car rolled off the production line earlier than 1986, chances are that it comes with an automated fuel injection system rather than a carburetor. While fuel injectors ensure more effective fuel usage and guarantee less emissions through exhaust gases, they usually suffer inefficiencies as the engine ages due to a build up of carbon residues and other solid deposits. Clogged up fuel injectors not only reduce the efficiency of your engine but could also cost you plenty of money in terms of untimely repairs and replacement of vital engine components.

If your car has gradually turned into a fuel guzzling monster, chances are that your fuel injectors are clogged with carbon residues and other deposits. Fuel injector cleaners come either as fuel tank additives or direct flush agents. That said though, for a fuel injection cleaner to pass the test of efficacy, it should be capable of strip cleaning sediments and deposits off the injectors and combustion chamber as well as the intake valve. To help you make a good choice when shopping for a good solution to kick back life in your underperforming engine, these are our 5 best fuel injectors.

Top Rated Fuel Injector Cleaner

Top Rated Fuel Injector Cleaner


STP 78577 Super Concentrated Fuel Injector Cleaner

This is a high performance fuel injector cleaner which contains specially formulated detergents with proven effectiveness in exterminating harmful varnish, gum and carbon deposits which reduce the performance, efficiency and longevity of gasoline fuel injectors. With just a single treatment, the STP Fuel Injector Cleaner unclogs dirty fuel injectors and restores performance as well as restoring high miles per gallon efficiency of a new engine.

For the best effect, it is recommended that you treat your fuel injection system during every oil change or after every 4,000 miles. The 5.25 ounce bottle of the treatment is enough to treat 21 gallons of gasoline while the 12 ounce bottle is adequate for treating 28 gallons of gasoline.



Chevron PRO-GARD Fuel Injector Cleaner with Techron

Designed to help boost performance of both carbureted and fuel injected, spark ignition engines, the Pro Gard fuel injector cleaner is your best bet for cleaning clogged fuel injectors. With a single treatment, you will notice hesitation at engine starts disappear and frequent incidences of unexplained power loss become a thing of the past. The fuel injector cleaner is also capable of boosting fuel economy of the engine.

One of the major differences between Chevron ProGard fuel injector cleaner and other additives is the inclusion of Techron as an ingredient. Other cleaners use a detergent based additive that is based on polybutene amine (PBA) chemistry. These additives work well in reducing injection system deposits but only if the concentration of PBA in the gasoline is high enough. In recent years, the amount of PBA in gasoline has gone so low that PBA based injector cleaners are virtually ineffective in reducing deposits in the engine.

Chevron ProGard is safe to use for every 1,000 miles or as often as needed to keep the fuel injector clean and free of performance reducing deposits. The only major precaution is that you should not use it to treat 2 stroke engines.



Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner

Suitable for treating all types of gasoline engines, Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner is a blend of highly efficient compounds for cleaning your fuel injectors of all deposits and residues. The cleaner is added directly into the fuel tank to clean the injectors as well as the intake valve without need to remove any parts. After treating your engine with Liqui Moly 2007 you will notice immediate results in terms of reduced fuel consumption and less smoke (meaning less emissions) from your exhaust pipe as well. You may also notice your car become much easier to handle in terms of drivability and acceleration performance.

Many drivers who switch to using Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner report that their engines regain so much performance that they are virtually indistinguishable from the time they were new. The improvements are immediately noticeable in terms of smoother idling of the engine and effortless throttle response. To treat your fuel injection system, add 50 ounce of the treatment to 20 gallons of gasoline. The treatment should be done for every 1,200 miles (2,000 kilometers) your engine clocks.


 Mag 1 147 Super Concentrated Fuel Injector Cleaner

Deal a devastating blow to all the power robbing deposits including gums, varnish and even dirt by cleaning your car’s fuel injectors with Mag 1 147 Super Concentrated Fuel Injector Cleaner. Formulated with a jet fuel base, the injector cleaner has enough versatility to penetrate and clean all parts of the fuel injector including the intake valve. It is a fast fuel injection system treatment solution which requires no removal of parts while delivering instantaneous performance advantages.

If your car has been suffering from sluggish starts, especially in the cold of the morning, a single treatment with this super concentrated cleaner will do the trick. You will be able to tell the effectiveness of the treatment right away: switching on the ignition will give you a feel of the added horsepower. No more lethargic starts nor rough takeoffs. You can also leave your engine in idle mode and have no fear of abnormal shakes and grunts. One 12 fl. Oz. pack is enough to treat 30 gallons of gasoline. This should ideally be done after every 2,500 miles.



Valvoline 602376 Fuel Injector + Intake Valve Cleaner

Valvoline is a trusted brand not only for their proficiency in developing high performance products for the consumer automotive market but for the car-racing industry as well. The Valvoline fuel injector cleaner represents this enduring pedigree which goes back 150 years. The cleaner comes with a reinvented, super-concentrated formula that has proven effectiveness in restoring your engine’s lost power and performance. It also enhances the efficiency of the fuel system by getting rid of moisture in the gasoline in addition to eliminating the problem of rough idle and hesitant starts owing to accumulation of hard deposits in the fuel injectors and intake valve.

The cleaner is sold in a standard 12 fl. oz. (354ml) plastic can. Pour the entire contents of the can into the fuel tank prior to fill-up. This is enough to treat up to 20 gallons of fuel but there is no harm if your fuel tank holds much less than that amount. The simple treatment regimen should be repeated every 3,000 miles or thereabouts.



If you want a cleaner that does more than clean the injectors check out our article: What is the best fuel system cleaner?