There are plenty of options available while buying engine cleaning additives in the market right now, and if you're confused regarding which one to go for, Your search ends here.

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Our Top Picks:

Best Overall: Buy: Lucas Oil Engine Cleaning Additive READ REVIEW

Best For Lifter Noise: Buy: Liqui Moly Engine Cleaning Additive READ REVIEW

Best For Fuel Economy: Buy: Hot Shots Secret Engine Cleaning Additive READ REVIEW

Best For Use: Buy: Royal Purple Engine Cleaning Additive READ REVIEW

Best For Fuel Tank: Buy: Sea Foam Engine Cleaning Additive READ REVIEW

Best For High Mileage Cars: Buy: Dura Lube Engine Cleaning Additive READ REVIEW

Best For Less Wear: Buy: Zmax Engine Cleaning Additive READ REVIEW

Best For More Power: Buy: Tribotex Engine Cleaning Additive READ REVIEW

Best For Manual Transmissions: Buy: Cd 2 Engine Cleaning Additive READ REVIEW

Best For Quick Delivery: Buy: Marvel Mystery Oil Engine Cleaning Additive READ REVIEW

Best With Old Engines: Buy: Zddplus Engine Cleaning Additive READ REVIEW

Best Overall: Lucas Oil Engine Cleaning Additive

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Here, we review an additive that manages to win our hearts. It's the Lucas Oil Engine Cleaning Additive and it's widely considered as one of the the great additives you can buy. The lucas oil engine cleaning additive does what it says and it is common. Make sure this fits by entering your model number. Moreover, it slows the burn, has miles per gallon and it is good for new cars.

The additive has been used Luca for years, works very well and it is great for a great price. Most importantly, the lucas oil engine cleaning additive has good motor assembly lube, has added one bottle and it is contrary to some belief.

Most buyers agree that the additive is a very good buy and shipping is great. In addition, a few also found that the additive can be used on both ford and chevy engines with good results. In addition, they strongly agree that the additive can also check directly lucas oil for their comment/response. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.

• This is good for piece of mind and it changed the oil.
• There have been no other issues ever since.
• For use in any engine, gasoline or diesel.
• This works in about any type of engine or gear box.

Best For Lifter Noise: Liqui Moly Engine Cleaning Additive

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The Liqui Moly Engine Cleaning Additive's high-end materials makes sure that it ages well with use. The liqui moly engine cleaning additive is made from raw material deliveries, to production, right through to shipment. The Manufacturer says: An impressive result that reflects both our exceptional quality and our continuity. In addition, the additive is ideal for peace of mind, is good for good oil and it is great for oil burning.

Above all, the liqui moly engine cleaning additive improves the combustion process and restores full engine performance.

Most buyers opine that the additive cleans out deposits, how much normal contamination by old oil, etc. Further, they say that the additive does indeed clean and flush the engine well. Further, a few strongly agree that the additive is generally a good brand, but.

• This is compatible with all commercially available engine oils.
• This is great for valve cover gasket and it comes with a throttle body.
• Easy way to clean and flush the oil systems of gasoline and diesel engines.
• This has cleaned the maf sensor and it has replaced plugs.

Best For Fuel Economy: Hot Shots Secret Engine Cleaning Additive

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Next on the list, we've got yet another additive that manages to win our hearts. It's the Hot Shots Secret Engine Cleaning Additive and it's widely considered as one of the most convenient additives you can buy. The hot shots secret engine cleaning additive is a system that's 92% clean in astm's d4828 scrub test and 98% clean when used with hot shot's secret blue diamond oil. Per quart, stiction eliminator goes a long way. Further, it cleans every part that engine oil touches, from rings to oil pumps, while providing exceptional wear reduction.

The additive is built for semi-trucks and it works on both gasoline. Most importantly, the hot shots secret engine cleaning additive is good for good oil, changes the oil and it is best for valve cover gasket.

Most customers opine that the additive will be cycled through on a regular basis. In addition, they strongly agree that the additive does work but not as good as rev-x. And, a few also found that the end - all fix that some make it out to be for the 6.0 's with injector issues. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

• This is like turning on the switch.
• This reduces particulates and emissions.
• It runs great and it does the job.
• This is for cleaning up deposits on oil - driven injectors.

Best For Use: Royal Purple Engine Cleaning Additive

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The Royal Purple line of additives comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Royal Purple Engine Cleaning Additive is formulated with mmt, which delivers the best octane enhancement to help eliminate engine-damaging detonation, pre-ignition, and pinging or knocking from low octane gasoline. Make sure this fits by entering your model number. Further, the additive is formulated for engines equipped with carburetors, port fuel injection and direct injection, as well as turbocharged, supercharged and nitrous-injected engines.

Most importantly, the royal purple engine cleaning additive protects against phosphorus poisoning of catalytic converters.

Almost all customers opine that the additive is great for tuned engines and turbo ones even more so. In addition, a few say that the additive cleans and saves fuel mileage, poured directly into the vacuum line to injectors. Moreover, a few strongly agree that the additive is not as good as mentioned in the reviews. As a result, buyers were very happy to recommend it to friends and families.

• This works great, comes with a throttle body and it works great with turbo.
• This restores power and fuel economy while cleaning deposits from fuel injectors.
• This works for tuned engines that need higher octanes.
• This makes a big difference. To add to that, you can tell mileage went up.

Best For Fuel Tank: Sea Foam Engine Cleaning Additive

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Compared with other additives in this category, the Sea Foam Engine Cleaning Additive has a convenient design. The sea foam engine cleaning additive is good for gas mileage and it is used for all gas. It does not have harsh detergent or abrasive chemicals that can harm your engine. In addition, this is incredible and it is good for the fuel tank.

The additive allows for better gas mileage, works very well and it is for small engines. Lastly, the sea foam engine cleaning additive works great and it allows for better idle rpm.

Almost all customers quickly discovered that the additive is normally $10.00 per 16 oz. Further, a few say that the additive is good for several years as long as you keep the cap on the can when stored. So, customers were eager to recommend it to friends and families.

• This cleans the engine parts and is not dependent on the number of cylinders.
• This cleans dirty engine parts internally by removing harmful gums, varnish and carbon build-up.
• The more you add to the fuel, the better it cleans.
• This is great, been using it for 2 years.

Best For High Mileage Cars: Dura Lube Engine Cleaning Additive

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Next on the list, we've got yet another additive that manages to win our hearts. It's the Dura Lube Engine Cleaning Additive and it's widely considered as one of the most convenient additives you can buy. The dura lube engine cleaningadditive will reduce friction between mechanical parts, maximizing protection and performance, while reducing noise, providing quieter and smoother operation. For every 5 quarts of motor oil used, substitute 1 quart of oil with 1 qt of dura lube engine treatment in the crankcase. Also, it is great for fast shipping, changed the oil and it works for electric motors.

The additive works great, is good for gas mileage and it treats the metal. Further, this is advanced chemistry for lubrication and metal protection to help prevent metal-to-metal heat and friction. Lastly, the dura lube enginecleaning additive is industrial and has been used for many years.

Most customers quickly discovered that the additive is used for an oil change. Moreover, a few say that the additive has 265000 miles and no engine problems. To sum up, for almost all customers, Dura Lube product was just what they wanted.

• The manufacturer says: we don’t just treat the oil, we treat the engine.
• This is par for the coarse, on washer motors, dryers, dish washers.
• This is compatible with synthetics and it contains no solids.
• This has run much more smoothly and stopped consuming oil altogether.

Best For Less Wear: Zmax Engine Cleaning Additive

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The Zmax line of additives comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Zmax Engine Cleaning Additive is very quiet, works great and it is good for peace of mind. Make sure this fits by entering your model number. And, it is proud to be the official micro-lubricant of speedway motorsports.

The additive is easy to use and it is good for gas mileage. Finally, the zmax engine cleaning additive improves lubricity and reduces carbon deposit build-up while boosting performance and protecting vital vehicle parts.

Most buyers opine that the additive takes several heat cycles for the fluid level to resettle. Also, they say that the additive has been used for years in many vehicles. In addition, a few strongly agree that this formula can be used not only as oil treatment but also as transmission and power steering reservoir. In short, most customers call the additive functionally comfort, and no one questions it.

• This includes an easy-to-read measurement indicator for each application.
• This can be added to your anti freeze.
• This is good for the fuel tank and it is great for fuel efficiency.
• This maintains the protection provided by zmax.

Best For More Power: Tribotex Engine Cleaning Additive

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We would, of course, be remiss if we didn't mention Tribotex Engine Cleaning Additive for daily purpose. The tribotex engine cleaning additive is a revolutionary breakthrough in engine coating technology. The Manufacturer says: For engines that hold more than 8 quarts/liters of oil, such as large diesel pickup trucks and some high - performance sports cars, please use our diesel treatment. In addition, it is constructed with over one million dollars of research and development support from the national science foundation and nasa.

Lastly, the tribotex engine cleaning additive is a more powerful dose for bigger engines.

Most buyers quickly discovered that the additive was originally going to be fl. And, a few strongly agree that the additive is a custom - developed ceramic. And, a few say that the machine uses the additive for 40, 000 miles. To sum up, at the price, they believe that they got a steal of a deal with it.

• The Manufacturer says: our masterfully engineered engine treatment improves fuel consumption and reduces engine noise.
• This is good for gas mileage and it is well worth the money.
• This is not as apparent as in older engines, so the difference is less perceived.
• It runs great and it is best for new cars.

Best For Manual Transmissions: Cd 2 Engine Cleaning Additive

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Compared with other additives in this category, the Cd 2 Engine Cleaning Additive has a convenient design. The cd 2 engine cleaningadditive can be used in all engines, including direct injection (gdi) and hybrids. At your next oil change, replace 20% of your engine oil (traditional or synthetic) with marvel mystery oil. Also, this provides vehicle owners the ability to solve scores of automotive ailments with one product that can be added to both oil and fuel.

The additive has improved fuel economy and it is for use in all gas. Finally, the cd 2 enginecleaning additive has definitely oil and it is great for gas mileage.

Most buyers opine that the additive is also a fuel stabilizer and keeps fuel fresh when used this way. In addition, a few say that the additive will run cleaners like mmo for 10 mins and charge you $75 or more. In short, buyers found this to be one of the best additives for daily purposes.

• This is also ideal for high - mileage vehicles and for preventative maintenance.
• This is used for gear boxes and it is great for 4 - cycle oil.
• This is more for older models, however, due to the much higher sulfur content.
• This can be used, but it can cause problems because of lack of the additives.

Best For Quick Delivery: Marvel Mystery Oil Engine Cleaning Additive

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If you often find yourself confused about appropriate and satisfactory additive,ss Marvel Mystery Oil Engine Cleaning Additive is your solution. The marvel mystery oil engine cleaning additive has increased power and it is good for country of origin. Make sure this fits by entering your model number. Moreover, the additive is good for fuel tank and it is made for quick delivery.

Above all, the marvel mystery oil engine cleaning additive works great and it works for rear main seal leak.

Most customers opine that the additive is very difficult to find at a good price. And, they say that the additive is designed with a no spill spout. Moreover, a few say that this is an excellent additive to keep the valve train in good shape. Overall, the tone of buyers is very positive and we believe that the additive suits the purpose.

• It comes in gallon containers.
• This has many uses, especially in the automotive field.
• This is good for old mowers.
• This reduces and prevents valve-sticking by removing harmful sludge and carbon deposits.

Best With Old Engines: Zddplus Engine Cleaning Additive

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The Zddplus Engine Cleaning Additive's material feels more premium than its price would suggest. The zddplus engine cleaning additive is the only ep (extreme pressure) component which re-establishes the zddp levels that classic car engines were designed for, while allowing the car owner to use the base oil of their choice. Make sure this fits by entering your model number. Further, the additive is an oil supplement that contains very high concentrations of the well-known additive zddp (zinc dialkyl dithiophosphate), which has been the primary ep (extreme pressure) ingredient in all quality motor oils for over 70 years.

The additive is compatible with all conventional and synthetic oils intended for automotive use. In addition, the additive works great and it is compatible with synthetic. Most importantly, the zddplus engine cleaning additive is easy to use and it is compatible with conventional motor oils.

Most buyers found that the additive is what is termed a flat tappet valve train and yeah it needs zddp. Also, a few say that the additive is the best metallic lubricant for flat tappet engines. Also, they strongly agree that the old engines needed the zinc additive as today ’s oil is detergent free.

• This does not matter what engine it is used in.
• This is great for restoring ingredients missing from modern motor oil.
• This is designed to be used with engines that are pre-catalytic converters.
• This will certainly perform better than today’s oil.