Are you trying to find engine additive among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling engine additive on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 13 hours of research and did 37 engine additive tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best engine additive you can buy today
- Motor oil additive - Liqui Moly MoS2 anti-friction (300 ml. Can).Fit Type: Universal
- Forms High load-bearing film of lubricant on all friction surfaces
- You will be surprised at how much better your engine sounds and how controlled it will be even at very high RPM
- Flash point: 181.0 degrees_celsius
- Mixable with all commercially available motor oils
- Stable even under high thermal and dynamic permanent loads
- No deposits and absolutely compatible with all commonly used filter systems
- Resists extremely high and low temperatures
- The world’s #1 fuel additive for both gasoline and diesel engines
- A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
- Improves fuel economy by burning excess exhaust emissions
- Increases power and acceleration by improving fuel flow and reducing deposit buildup
- Neutralizes sulfur and other harmful contaminants present in the fuel system
- Increases the life of pumps and injectors
- Prevents rust and corrosion, prolonging the life of engine and fuel system components
- Complies with federal low sulfur content requirements for diesel motor vehicles and non-road, locomotive and marine diesel equipment engines
- Safely replaces the need for lead in older engines without causing harmful effects
- Easy way to clean and flush the oil systems of gasoline and diesel engines
- Gentle and rapid cleaning
- Neutral to seals and other materials installed in the engine
- Compatible with catalytic converters
- Simple to use
- SeaFoam SF-16 Motor Treatment 16 oz. Can (3)
- FIXES ROUGH RUNNING ENGINES – STA-BIL Fast Fix eats away at gum and varnish that cause rough starts and no starts in your small engine equipment. This easy-to-use fuel additive combats the effects of ethanol blended gasoline
- ELIMINATES WATER – This fuel injector cleaner helps to remove water that may get into your fuel system. Penetrating deep into the fuel line, this simple fuel additive prevents the need to disassemble the engine. The 8 oz. bottle of this alcohol-free fuel additive treats up to 20 gallons of fuel
- VERSATILE – Compatible with all small engines, adding STA-BIL Fast Fix to your 2-cycle or 4-cycle small engine cleans carburetors and injectors while acting as a water remover. Use this product in your lawn mower, chainsaw, trimmer, snow blower, generator, and more
- DIRECTIONS – For rough running engines use 1 oz. of STA-BIL Fast Fix per 2.5 gallons of fuel. Fill with fresh gas. Start the engine and allow to run for 15 minutes to allow the additive to work its way through the fuel system. If the engine does not start, attempt to turn it over a few times so the additive makes its way through the fuel system and allow to sit overnight. Attempt to start again, if problems persist you may need to have it looked at by a mechanic
- All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package!
- Revitalize Your Engine: Gumout Multi-System Tune-Up is your ultimate fuel treatment gasoline solution, effortlessly cleaning GDI injectors, carburetors, and more for peak performance and fuel economy.
- Ultimate Engine Protection: Our advanced carburetor cleaner fuel additive prevents future carbon buildup, ensuring your engine runs smoothly. Perfect for gas, diesel, or ethanol engines, from cars to lawn mowers.
- Comprehensive Care: As a powerful fuel tank cleaner, Gumout cleans and conditions fuel systems, fighting ethanol and water corrosion while stabilizing fuel to reduce emissions and maximize engine life.
- Versatile Application: Add this gas treatment for car engines directly to the gas tank, crankcase, or via induction. Whether you're cleaning a carburetor or stabilizing gas, Gumout Multi-System Tune-Up has you covered.
- Reduces oil consumption via the piston rings and valve guides
- Prevents blue, smoky exhaust fumes
- Prevents leaks due to leaks at elastomeric seals
- Regenerates engine seals made of plastic and rubber
- Prevents pollution of the environment due to oil dripping from the engine
- Reduces friction by approximately 60% compared to conventional engines, by forming an ultra-low friction film on top of the Diamond Nano-coating. Oil additive for car engine, and oil treatment for car and truck engines.
- Use for any type of vehicle, gasoline and diesel engines. Use in motorcycles, cars, classic cars, race cars, commercial trucks, and everything in between.
- More Concentrated High-Pressure Diamond Nano Engine Treatment Formula. Helps to reduce oil changes and engine noise. Returns power and life to high mileage vehicles. Superior Heat Resistance maintains lubrication integrity up to 1,800°F (982°C), outperforming conventional PTFE-based additives. Universal Compatibility is effective in gasoline, diesel, hybrid, and racing engines across all platforms.
- Use one bottle for every 5 quarts of oil; it is best if used at every oil change. Dual-Action Formula combines cleaning detergents with protective additives to: Remove existing sludge, Prevent new deposit formation, and neutralizes acidic oil breakdown. Restore your engine easily with BestLine Racing Diamond Nano Lube, a metal surface treatment.
- Extreme Heat Resistance and Boundary Layer Protection and Surface Polishing & Friction Reduction The nanoparticles (5-10nm size) act like microscopic ball bearings between moving parts. That fills microscopic grooves in cylinder walls and bearing surfaces, polishes metal surfaces to mirror-like smoothness through mechanical action, and reduces friction by up to 60% compared to conventional oils.
- RESTORES PERFORMANCE: Contains a combination of the best performance additives to repair the most common oil-related problems
- INCREASES COMPRESSION AND HORSEPOWER: Restores lost compression and power, reduces noise and oil consumption, while improving the performance of worn cylinders, rings, bearings, and seals
- STOPS LEAKS, NOISE, AND SMOKING: For most vehicles, this is your last chance before paying an expensive repair bill or replacing the vehicle
- FRICTION MODIFIERS: Engine Repair can be used to top off the existing oil when low, or add a bottle when changing the oil and filter
- REPAIR-IT: Engine Repair-It can be used to top off existing oil when low or add a bottle when changing oil.
- REDUCES FRICTION AND WEAR: Multi-grade formula allows the oil to flow freely and provides protection over a broader temperature range
- REMOVES AND PREVENTS SLUDGE: XTREME LUBE Maximum Performance removes sludge and other harmful deposits within engines that can alter tolerances, stick rings, cause noisy valves & lifters, and plug oil passages and screens
- QUIETS NOISY LIFTERS: The unique Rislone formula is designed to penetrate into bearing surfaces, piston rings and ring grooves, where sludge and varnish is likely to form. These deposits are gradually removed and held in suspension until they are trapped in the filter or removed with the next oil change
- QUIETS NOISY VALVES: Regular use of Rislone Engine Treatment, with oil and filter changes at the proper intervals, will keep such deposits to a minimum
- MADE IN THE USA: Will not void manufacturer's new vehicle
- POWER UP ENGINE, CUT THE NOISE: Maximize your engine’s performance with engine oil treatment. It enhances horsepower, minimizes engine noise, and smooths vibrations for a quieter, more efficient drive every time
- SAVE ON FUEL COST: With high mileage oil treatment, reduce fuel consumption by up to 45%! Its advanced formula decreases engine friction, optimizing component efficiency and helping your engine go farther on less fuel
- EXTEND ENGINE LIFESPAN: Protect your engine with oil additive for car engine that reduces wear during startup, conditions components, and doubles oil life. Keep your engine strong while avoiding costly repairs and breakdowns
- READY FOR ANY ENGINE TYPE: This versatile engine oil cleaner is compatible with gas and diesel engines, transmissions, and gearboxes. Its easy-to-use formula blends seamlessly with synthetic or petroleum oils for hassle-free application
- VERSATILITY YOU CAN COUNT ON: Designed for any engine, diesel oil additive offers tailored ratios, such as 1 oz per quart for standard engines or 2 oz for heavy-duty or high-mileage engines. Perfect for cars, trucks, and industrial machinery
- GROUNDBREAKING: Made in the USA – TriboTEX is a revolutionary engine oil additive. It contains synthetic nanoparticles developed with funding from the U.S. Department of Energy, NASA, & the National Science Foundation.
- QUIETER & SMOOTHER PERFORMANCE: Reverses wear in bearings by building a diamond-like carbon coating.
- UNIVERSAL: Compatible with all types of motor oil and can be used in gas or diesel engines. Use for both old and new cars. It is an excellent engine booster.
- EFFICIENT: Our masterfully engineered engine treatment improves fuel consumption and reduces engine noise. It is time to improve your engine and take your driving experience to a new level.
- GUARANTEED QUALITY: We know you will be delighted with this ground-breaking technology. Our treatment comes with a 100% satisfaction guarantee.
- Excellent at fighting off sludge
- Lubricates all internal parts to minimize wear in any engine
- Raises oil pressure
- Eliminates the noise, emissions and oil consumption associated with worn engine
- Single Quantity
- No Core Charge Req
- Stable even under high thermal and dynamic permanent loads
- No deposits and absolutely compatible with all commonly used filter systems
- Superior Engine Protection: The engine anti-wear protectant is designed to safeguard your vehicle’s engine by forming a protective barrier on critical components. It reduces friction, minimizes wear, and extends engine life, ensuring optimal performance and durability.
- Enhanced Engine Efficiency: By reducing friction and heat, this engine anti-wear protectant improves engine efficiency, resulting in smoother acceleration, increased horsepower, and overall better vehicle performance.
- Fuel Economy & Durability: With its high viscosity and excellent adhesion, this engine anti-wear protectant effectively reduces gear wear, helping to improve fuel economy and extend the lifespan of your engine.
- Versatile Compatibility: This engine anti-wear protectant is compatible with gasoline engines and works seamlessly with both conventional and synthetic motor oils. It’s a versatile choice for daily drivers and high-performance vehicles alike.
- Long-Lasting Performance: Designed for high efficiency, this engine anti-wear protectant provides long-lasting protection against wear and tear, ensuring your engine runs smoother and lasts longer. A must-have for maintaining peak engine health!
- Better engine performance.Fit Type: Universal
- Lower fuel consumption
- Lower pollutant emissions
- Protection against corrosion and carburetor icing
- Premium Quality
- Anti-Friction Oil Treatment
- For engine wear protection
- Pack of 2
- Made in Germany
- Extends engine life
- Reduces wear
- Prevents sludge and varnish
- Prevents excessive oil consumption
- Keeps piston rings from sticking
- Extend the Life Of Your Vehicle: zMAX Engine & Fuel formulas are easy to use. Micro-lubrication soaks into metal surfaces, which improves lubricity and reduces carbon deposit build-up while boosting performance and protecting vital vehicle parts.
- Engine Efficiency: Add zMAX Engine Formula to gain efficient combustion resulting in more power. Use at your routine oil change or every 6k miles for reduced engine wear, lower emissions and keep your engine running smoothly.
- Fuel Conditioner: Pour zMAX Fuel Formula in the fuel tank to lubricate and maintain a clean fuel injector system. It improves fuel efficiency and performance and conditions the pumps and nozzles reducing carbon residue from the valves or pistons.
- Trusted By Professionals & Dealerships: Stock zMAX in your garage to care for your car like a professional. From local repair shop mechanics to major car dealership groups, our formula is mechanic trusted. zMAX is USA-Made!
- Reputable Craftsmanship and Performance: zMAX is proud to be the Official Micro-lubricant of Speedway Motorsports. Trusted for over 80 years, zMAX helps cut costs at the pump and extends your engine’s life.
How to choose a good engine additive
Does the idea of finding a fantastic engine additive make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in engine additive. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top engine additive products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top engine additive on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top engine additive brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top engine additive based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the engine additive were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good engine additive, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your engine additive.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting engine additive for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our engine additive. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what engine additive should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on engine additive.
