The 8 Best Engine Cleaner Additives in 2021 [Reviewed]

best engine cleaner additive

So i hope you agree with me when I say:

 “A well sustained fuel system can save you from enormous fuel expenses 

With fuel costs sky rockiting by the day, a total fuel change can cost you a fortune. Therefore it goes without saying the health of your fuel has to be in top priorities. Wether you use gasoline or diesel your fuel is prone to be compromised by overtime forming of carbon compounds in your combustion chamber. If this carbon residue is not treated timely it will compromise your engine performance and efficiency. Consequently destroying your fuel-economy.

The best periodic solution to this problem is to clean your fuel system with a cleaner additive every now and then. Not only this will save you significant stacks of cash in the long run but the process itself is quite simple and effortless. Finding the perfect additive for yourself over the massive span of products on the internet can be a daunting task. Therefore to simplify this task we have assembled together a list of the top rated and positively remarked products you can buy right now. We will also go over the entire process of using these additives at the end of this article, see How to use a fuel additive effectively.

Best Engine Cleaner Additive in 2021

Here are our top picks for Best Engine Cleaner Additive that you can buy from the ease of your home:

Car WaxesRatingPrice
Chevron Techron Concentrate Plus Fuel System Cleaner 9/10
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STA-BIL (22208) Storage Fuel Stabilizer 10/10 (Editor's Choice)
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Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner (32 oz) 9/10
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Liqui Moly 2030 Pro-Line Fuel System Cleaner (500 ml) 9/10
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Archoil AR6200 Diesel/Fuel Additive (16 oz) 9/10
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Gumout 510014 Regane Complete Fuel System Cleaner (6 oz) 7/10
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Quicksilver 8M0047921 Quickleen Engine & Fuel System Cleaner (12 Oz) 8/10
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LUCAS LUC10013 10013 Fuel Treatment 8/10
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1- Chevron Techron Concentrate Plus Fuel System Cleaner

Why we love it?

  • Maximum Fuel Economy
  • Restores Vehicles lost performance
  • Results in lower carbon residue formation




Why should you get it?

2- STA-BIL (22208) Storage Fuel Stabilizer

Why we love it?

  • Dramatically Scales Engine life
  • 24 Month Fuel Preservation
  • 1 Ounce to 2.5 Gallon Treat rate




Why should you get it?

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3- Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner (32 oz)

Why we love it?

  • Neutralizes harmful fuel emissions
  • Works for both diesel and gasoline
  • Replaces the need for leaded fuels with providing same benefits




Why should you get it?

4- Liqui Moly 2030 Pro-Line Fuel System Cleaner (500 ml)

Why we love it?

  • High Additive to Fuel treatment ratio
  • Eliminates Engine starting problems
  • Globally recognized performance




Why should you get it?

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5- Archoil AR6200 Diesel/Fuel Additive (16 oz)

Why we love it?

  • Value for the money
  • Effective Bug Removal
  • Glossy Finish




Why should you get it?

Archoil’s Fuel Additive is designed to treat both diesel and gasoline fuel consuming engines. Synthesized from a combination of super slick oils and additives, it will purify your engines vessels off carbon residue and other waste emissions accumulating within. Furthermore restoring your engines optimal engine performance and fuel economy. This eradication of wastes leads to engine burning fuel more thoroughly and having lower fuel consumption rates. This additive should be used with vehicles that require leaded fuels as it replaces lead for all its benifits without causing any sort of harmful emissions. Lastly when it comes to low sulfur diesel fueled vehicles Lucas’s Cleaner will negate all harmful combustion emissions and pass all environment friendly tests.


6- Gumout 510014 Regane Complete Fuel System Cleaner (6 oz)

Why we love it?

  • Heavy Duty Removal
  • Rehydrates and softens the splatter for easy cleanup
  • Universal Fit




Why should you get it?

MEGUIAR’s are famous for their quality car maintenance products. Meguiar’s Bug & Tar Remover has specialized surfactants that effectively remove bugs and tar from your paint finish, moreover its known well for its heavy duty cleansing which makes your after cleaning a trouble-free task.

7- Quicksilver 8M0047921 Quickleen Engine & Fuel System Cleaner (12 Oz)

Why we love it?

  • Refillable Bottle
  • UV filter for added protection
  • No powdery residue or stains left




Why should you get it?

BugSlide is a multi-function cleaner which removes bugs with attitude. Bringing an end to the baked on bugs and bringing out the streak free shine. BugSlide is safe to use on multiple surfaces including Lexan, glass, fiberglass, plexiglass, chrome, stainless steel, aluminum, leather, vinyl & any non-porous surfaces.

8- LUCAS LUC10013 10013 Fuel Treatment

Why we love it?

  • Safe for wax finshes
  • Easy to use
  • Specially Designed for bug removal




Why should you get it?

BUG-OFF are specially manufactored to deal with bug splatter and other insect remains from your car surface and restore your car as new. With its powerful chemical formula no hard rubbing or scrubbing required. Does not remove waxes or polishes rather it enhances your current finish with a clean wipe around the car.


The above mentioned cleaner additives consist of the combined reviews by our research team and many other buyers in order to analyze each additive very carefully making sure the buyer’s expectations are fulfilled. The list consists of only the most top tier fuel additives available on the market. In conclusion, this list will definitely help you in finding the perfect engine additive for your car.

How to use a Fuel Additive effectively

Using fuel additives is extremely simple, repeat the following steps at least once a month for eliminating frequent residue accumulation:

Step 1: Go to a gas station and fill up your tank upto 95% capacity.

Step 2: Pour your engine additive for the remaining capacity of the tank.

Step 3: Drive your vehicle until the tank is almost empty.

Step 4: Go to the gas station when your tank is almost on ‘e’ and before injecting fuel pour the additive first and then refuel the car.

Switch between Step 1-2 and step 4 every month and your car will be free of carbon condensation. Consequently giving you a better mileage and fuel economy.