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Ultimate Guide to Top Fuel System Cleaners 2018: 8 Best Fuel Injector Cleaning Kits

We rounded up the best fuel injector cleaning kits on sale today in this fuel injector service guide. Read on to discover your best bet for awesome engine and vehicle performance.

Here’s the miracle of the internal combustion engine:

Just pop the fuel tank’s cap and drench it in your favorite fuel brand. Your ICE engine then does its thing by converting fossil fuel into gas and, ultimately, horsepower like you need it to.

So, what’s a fuel injector cleaning kit got to do with fuel-burning?

Wait, there’s more.

Best Fuel Injector Cleaning Kits

Do you Need A Top Fuel Injector Cleaning Kit?

Apart from the emissions piping out the tailgate, two more end products are constantly building up inside your engine compartments; carbon and soot—more like gunk and even more carb.

These clog your vehicle engine’s pistons, fuel rail, cylinders, among other key areas—choking fuel ways from reaching the combustion chamber, for example.

The inevitable happens:

Past the 10,000 mileage mark, you might start to notice rough idling. You floor the accelerator pedal and not much of a response in thrust is forthcoming. Your engine’s fuel efficiency and economy (MPG) plummet (and your pocket let’s you know all about it too).

Allow this sort of setup and carb accumulation to persist, and not only do you get to win yourself an explanation at the emissions office but at some not too distant point, your Check Engine Light will come on.

That’s bad.

One or a couple of your engine’s essential components, such as fuel injectors, become worn out and you have to replace them outright.

What follows is the kind of pricey fuel injector service that feels like a soft rip-off.

That’s really bad.

Here’s our friend John with a little more good and bad news:

So, how do you ensure this does not happen in your case?

Find the best fuel injector cleaner kit among the top-selling fuel injector cleaning kits in the market beforehand.

Prevention is always better than trying to cure a knocked out engine, now isn’t that right?

What’s the Best Way to Clean Fuel Injectors and System?

Several of you asked whether a fuel injector cleaning kit or fuel injector service tools are worth it.

Here’s the deal:

There are dozens of good fuel injector cleaners out there that work wonders to clean up your fuel system in form of fuel adhesives. All you need do is pick up a can of your choice (check out our best fuel injector cleaners review and buying guide here) and add it to your one-eighth full fuel tank, hoop into the cockpit and speed off for a run.

The carb comes out the tailpipe.

Cleaned.

Simple and convenient. But not thorough enough, and especially if you’ve not cleaned your vehicle’s fuel system for a stretch.

Fuel injector cleaning kits require a more hands-on experience, and offer a comparatively meticulous fuel system cleaning, outdoing aerosol fuel injector cleaning and fuel adhesive methods.

And you only need to pull off this thorough feat once a year—or once you’ve clocked past 15,000 miles on dash, whichever shows up first.

So you might want to get a fuel injector and system service tool for these times.

But how do you go about it?

How to Choose the Best Fuel Injector Cleaning Kits (Which Kit is Right for You)?

First things first…

Whether you are a beginning mechanic, or a veteran technician with black paint to show for it, you can use a top fuel system cleaning kit for your shop or auto service or dealership.

You are also free to purchase the right fuel injector cleaner kit for your home garage as an individual car owner or for your family or auto-head friends.

Wondering how to use a fuel injector cleaning kit?

Follow the proceedings in this video to do your fuel system cleaning like a pro.

Expert Tip: You’ll want to use the can of fuel injector system cleaner that comes with the kit (if it does come with one) or a recommended alternative for your vehicle make and model.

Some technicians reported their engines failed to start (or some other hiccup) when they improvised with Seaform’s fuel injector cleaner.

Perhaps this one’s more to your liking:

How about a little improvisation for technicians, while you are at it?

Alternatively, you can read up on this step-by-step guide on how to use a fuel injector cleaning kit here too.

Now on to what to look out for to find the right fuel injector cleaning kits for your vehicle’s fuel system cleaning.

  • Note the Make and Model of your Vehicle

This will help you choose an ideal fuel injector cleaning kit for the specifics of your vehicle’s fuel system.

It is typical to find a printed manual with each fuel system cleaning kit you purchase, detailing the list of makes and vehicle/engine models suitable for use with it.

For example, OTC offers one that lists the best adapters for different vehicles since 1997 to 2008. That informs you whether the kit’s adapters, seals, O rings, and pressure (psi) levels suit your vehicle’s make and model.

A set that fits well ensures maximum safety for you and your loved ones or partners when testing and cleaning; snug fits curb spills and leaks of the corrosive cleaning solvents.

  • Consider How You Plan On Using the Fuel System Service Tools

Are you opening shop, upgrading your fuel injector cleaning service or want one for your home garage?

You’ll need a heavy-duty kit if you run an auto center.

For example, you’ll want to opt for a fuel injector cleaning canister that’s large enough to hold up more fuel injector cleaning solution—such as a 32 oz—for say, larger trucks.

Still, you’d need a selection of adapters for the different engine makes and models you’ll be dealing with on a daily basis. An all-in-one, full-size fuel injector cleaning kit is necessary in your case—compared to home garage use.

In fact, some kits on this fuel system cleaning kits review offer up to 49 adapters, at least 3 connecting hoses, a bunch of O rings and seals, and several other fittings.

  • Choose the Best Pressurized Fuel Injector Cleaning Kits Make

Also, you’ll want to choose from fuel system cleaning kits that are made out of durable and high-quality materials.

Fuel injector and system cleaners are normally corrosive. You don’t want low balling kit components that wear out fast, furious and dangerous.

From the rubber air hose to the brass or copper adapters to the metal canister and analog pressure gauge, you want them to offer value for money and long, illustrious service.        

  • Shop Around Online and Compare Amazon Sellers’ Offers

Before settling down to “how much does this fuel injector cleaning kit cost?” here’s more in-depth scans to pull off:

  1. Find out if you can use the kit as both a testing/diagnosing and cleaning kit (especially handy for mechanics and auto service dealers)
  2. See if it comes with a fuel injector cleaning solution included in the purchase price or if you need to buy the solution separately?
  3. Well, finally, who does not want a discount?

Choosing the ideal fuel injection system cleaning kit for the money could easily turn your calm and cool into a cloud of confusion.

We did the homework bit, so you wouldn’t have to.

Review: The Top 8 Best Fuel Injector Cleaning Kits in the Market Now

1

OTC 6550 PRO Professional Master Fuel Injection Service Kit (Testing and Cleaning)

Grab this dual-purpose, multi-adapter fuel system tool especially if you have several vehicles or run an auto shop or large garage.

OTC, a reputable name in these circles, crafted this bad boy to help clean various vehicle models with less hassle.

That means you can use the 6550 PRO with domestic, European and Asian vehicles such as Japanese world-darling, Toyota.

You also get a comprehensive manual covering about 97% of vehicles (make/model/year) from 1997 to 2008.

What a blast!

The package comes with a generous 47 adapters, each with an easy to connect Shrader valve for quick, tight-fitting connections. To further appeal to mechanics, technicians, and auto shop owners, the kit doubles as a testing kit for diagnosing fuel pump, leak-down and clogged filters issues.

Yet, professionals will absolutely dig the analog pressure gauge sleeked into the kit. It’s easy to use when testing for weak fuel system pressure, empowering you to detect even slight leak-down issues and so on, as well as measure precise readings as recommended in the kit’s manufacturer manual.

Best for Professional auto technicians, mechanics and auto shops


2

FIT TOOLS Pneumatic Vacuum System Testing and Fuel Injector Cleaning Kits

Here’s another select universal fuel system cleaner tool to add to your toolbox if you want one for use with multiple vehicles (make/model/year)—pretty similar to OTC’s 6550 PRO but not quite the same thing (well, both sport nice organizer cases).

Here’s why: First off, FIT TOOLS made the setup to come with its own fuel injection cleaning canister—but you’ll need to cover a cleaning solvent in a separate purchase.

Although, you can only use the pneumatic vacuum system for gasoline engines only.

Expect to accomplish similar tasks to the OTC PRO: cleaning the vacuum system, intake valve, fuel injector and combustion chamber, as well as test the entire system for weak pressure issues.

Hopefully, they consider sending some hose clamps to use for securing fuel lines.

Otherwise, if you want a FIT TOOLS fuel injector cleaner for your home garage, you can get their Economical Vacuum Intake Valve cleaner kit. It should help you clean up the intake valve and combustion chamber as well.

It’s an overall great product for professionals and busy garages.  


3

Air Pneumatic Vacuum System Fuel Injection Testing and Cleaning Kit

Similarly to FIT TOOL’s fuel injection cleaner kit, you get a 16 oz cleaner canister to use with any solvent you see fit.

Also, it is important you note that the “testing” bit only applies to the flushing system.

If you need a fuel pump tester you might be better off trying out the two options above for your multi-vehicle garage or auto service center.

The good thing is it does come with all the listed adapters, canister, hoses and fittings right out the box.

To find out what car make/model/year to use the cleaning kit with, check out their listing on this website, which includes the engines applicable as well.       


4

S.U.R & R FIC203 Fuel Injection Cleaner Kit        

​​​​If you are looking for a simple, yet flexible canister fuel injector cleaning tool you might want to consider this baby.

It offers a fantastic cleaner kit for both diesel and gasoline engines.

Still, it comes with a universal connector. You can hook it up to most vehicles’ engines and still avoid any misfit spills and leaks—which could be dangerous to some of your engine’s chambers and your safety too.

It’s a 10-piece fuel injector cleaner tool: one 18 oz stainless steel canister, one 3 ½ inches mechanical pressure gauge, and a splendid 8 cleaning connectors. These makes the setup a good fit for use in both home garages and as a supplementary service shop fuel system cleaning tool.

The S.U.R product delivers, probably because the huge connectors’ selection makes cleaning the intake valve, fuel passages, and injectors such a breeze and thorough task.

You’ll most likely find your vehicle make/model/year listed as suited for use with the SRR FIC203’s 85% domestic and foreign vehicles kit.

But just in case you miss out, finding fitting adapters would not be a problem.

If you want a simple, DIY set up but one that’s flexible and suitable for both gasoline and diesel engines, get this one.


5

OTC 7649A Fuel Injector Cleaning Kit

Now here’s one of the best fuel injection service kits for both individual vehicle owners and mechanics or technicians.

It’s preceding the OTC 7649 kit.

OTC 7649A Fuel Injector Cleaning Kit

Well, for a busier garage you’d need a couple of these since each wound up to one vehicle engine’s fuel rail at a time; direct injection for decarbonizing and fuel injector cleaning.

If you plan to use it with several different vehicles, OTC fitted the kit with a blowout attachment.

That should help with varying cleaning solvents among different vehicles; means you can clean up the kit (with fresh gas) immediately you are finished with one engine and move on to the next one—or if you just want to store it and preserve its shelf life.

It comes with a simple, do-it-yourself adapter to hook up to your vehicle quick and hassle-free while taking accurate readings from the mechanical 3 ½ inch pressure gauge.  

They also included a detailed manual to help you through the specialty process. And if you own a domestic or an imported vehicle, you are covered too since the adapter fits quite well into most engines’ fuel rail.    

Overall, it is a durable pressurized fuel system cleaning kit. It ships complete with a stainless steel 22 oz canister for long service and easy cleaning. You also get a flexible, removable and hard-wearing hose so you can use different fuel types including ethanol-based fuels.

Unfortunately, this OTC product kit is not for use with diesel engines.

We recommend the OTC 7649A for individuals wanting a high-quality fuel injector cleaning kit for almost any type of engine and fuel.  


6

Mityvac 5570 Fuel Injector Cleaning Kit

You’ll want to grab this offer if you are in the market for a top-notch fuel injector cleaner kit for both home use and pro shop.

This is the advanced version of the Mityvac 5565 Fuel Injector Cleaning Kit, and it shows somewhat in performance.

Right out the case you get a massive 32 oz canister in case you need to clean up larger engines or for longer, thorough cleaning. Expect an advanced, dual-regulator to help you clean both low and high-pressure engines in a majority of both domestic and foreign vehicles (Asian and European).   

Still, it comes with a thoughtful wall-mount bracket and detailed manual for holding up and precise guidance, respectively. But you’ll be hard-pressed to not notice hoses and adapters are missing, especially when you compare this kit with the others here.

However, it comes with a 3 ½ inches analog gauge so you can take precise readings—and perhaps catch anything that’d off with the fuel pressure system.

Also, Mityvac bets on a simple and universal adapter that’s compatible with multiple hoses and adapters for tight fitting and safe cleaning.

But, you’ll need to look to OTC for a cleaning solvent—which sort of earns extra points for the competition.

Overall, the Mityvac 5570 is excellent for you if you need a kit that’s suitable for either low-pressure or high-pressure engine at home (several vehicles) or auto shop    


7

OTC 7448A Fuel Injection Cleaner Kit

This 7448A fuel injection cleaner canister is the most popular component and kit around town.

Is there any particular reason for that?

First, the pressurized kit is great for use on direct injection fuel rails/systems. And you can run your fuel system cleaner easily to dissolve carb clogging your fuel induction components such as intake valve, pistons, and cylinder innards.

For slightly less cash, you get the same 22 oz and stainless steel canister for prolonged use and durability. And you’d be glad to know OTC has one of the most-detailed user manual and compatible adapters to hook up most vehicle’s engines; from domestic to Asian to European vehicles, about 90% are covered.

If not, we found it easy to find a compatible at a local auto shop or online.

Is there a downside to it?

If you are looking for a top-notch fuel system cleaning kit you’d use with a diesel engine, you might not like it that this kit is not for use with diesel engines.

Get the OTC 7448A if you want a quality fuel system cleaning kit for a small auto shop or home garage.


8

3M 0883​​​​6 Universal Fuel System Cleaning Kit

3M’s offer is this simple, do-it-yourself adapter setup for quick, easy cleaning and storage. If you are not too mechanically-inspired, it is a practical and affordable unit to grab for your toolbox.

Yet, the unit is a fantastic option if you are a pro looking for a one-fits-all type of kit to use with multiple vehicles (make/model/year), fuels (diesel, ethanol gas, etc), and third-party kit components.

You’ll notice the hose and connectors are pretty high quality (which might explain the pricing); universal brass connectors and  

It does not come with a canister, but you get a wall bracket to hook one up after purchasing a third-party cleaner solvent.

However, the kit is compatible with a bunch of standard, Schrader adapters for when you want to decarbonize those fuel system lines and combustion chambers. So you can hook it up pretty much anywhere it needs to get into, including on your shop’s air adapter.

Like others on here, you get a 3 ½ inches analog gauge, the mechanic’s favorite unit for precise readings—and a handy regulator to check the amount of cleaner solvent your engine sucks in so you can curb a possible engine hydro-lock.

We recommend the 3M 08836 fuel injector cleaner for the individual or professionals wanting a simple, easy to use and widely-compatible kit for thorough fuel system cleaning.        


Bottom​​​​line

So, there you have them; the top fuel injection and system cleaning kits on the market right now.

While we’d pick out the overall best kit, the reality is your car is different from someone else’s—and so need a particular fuel injector cleaning set to unclog the fuel system and boost your vehicle’s performance and fuel efficiency.

If you are mechanically advanced, you could even grab an all-around kit for those do it yourself fuel injector cleaning sessions. If you are just getting your hands oily, the fuel system cleaning kits reviewed here are straightforward and easy to use, any day too.

Hopefully, this ultimate guide to the best kits helps you choose the right, pressurized fuel injector cleaning kit for your vehicle—and probably banish any frustration you might have had.