Oil additive is able to improve the engine’s performance, make small imperceptible repairs to its component parts, or to prevent possible problems. Chemically active microparticles with the oil help penetrate into the working mixture of the engine and create a thin layer of plaque, which prevents excessive friction of working surfaces and preserves the viscosity of the oil at high temperatures. In addition, the best oil additive for burning oil, and to stop smoking, accomplish the function of sealants and can eliminate leaks on heavily worn-out engines.

Preview
Sea Foam SF-16 Motor Treatment - 16 oz.
Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2)
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
Title
Extreme Marine & Rv SF-16
Archoil AR9100 Oil Additive
Liqui Moly 20002
Marvel Mystery Oil MM12R
Liqui Moly 2009
Capacity, oz
16
16
10
1 Gallon / 16 oz / 32 oz / 32 oz 6 Pack
300 ml / 300 ml 12 Cans
Oil type for
all types
all types
all types
all types
all types
Product Dignity
Cleans injectors
Extends component life
For high and low temperatures
Reduces and prevents varnish
Lubricant on all friction surfaces
Price
$6.97
$44.95
$21.25
$19.75
$7.99
Preview
Sea Foam SF-16 Motor Treatment - 16 oz.
Title
Extreme Marine & Rv SF-16
Capacity, oz
16
Oil type for
all types
Product Dignity
Cleans injectors
Price
$6.97
Preview
Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
Title
Archoil AR9100 Oil Additive
Capacity, oz
16
Oil type for
all types
Product Dignity
Extends component life
Price
$44.95
Preview
Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
Title
Liqui Moly 20002
Capacity, oz
10
Oil type for
all types
Product Dignity
For high and low temperatures
Price
$21.25
Preview
Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2)
Title
Marvel Mystery Oil MM12R
Capacity, oz
1 Gallon / 16 oz / 32 oz / 32 oz 6 Pack
Oil type for
all types
Product Dignity
Reduces and prevents varnish
Price
$19.75
Preview
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
Title
Liqui Moly 2009
Capacity, oz
300 ml / 300 ml 12 Cans
Oil type for
all types
Product Dignity
Lubricant on all friction surfaces
Price
$7.99
Today’s market presents directional additives (to stop smoke and to stop leak) and general (to resolve many problems, including those mentioned above). If the car owner has specific problems with engine smoking and leaking, he/she has to choose the correct and good oil.

      • Additives to stop smoking. They can create a durable and resistant to mechanical impact coating that will protect the engine rubbing parts surfaces from the runout. Due to all these procedures, the additive is able to stop oil burning and prevent the thick black smoke coming out of the exhaust pipe. The oil loss also can be the reason for the smoke. This is due to the runout of the cylinder-piston group parts and carbon deposits on the combustion chamber walls appearing. Restoring oil additives increases its viscosity (while heating) and reduces the chance of the engine oil loss. So you need to choose only the best oil additive to stop smoke.
      • Additives to stop leaking. Such substances carry out the task of sealant and fill microcracks, scratches, and other defects, which allow restoring the nominal dimensions of pieces in a rundown engine.
      • Complex additives. Such a product doesn’t have a clearly defined range of action, but it positively influences on the engine’s condition, decreases the noise of the engine and reduces the quantity of exhaust gases (smoke). That’s why they are the most popular.

    The Best Oil Additives to Stop Smoke

    Jump to

    Lucas 10001: Removes Dry Starts and Smells Neutrally

    Lucas 10001
    The oil itself is a special blend of high-quality oils in combination with various additives extracted from petroleum. The product eliminates dry runs and prolongs the time of the lubrication usage. The Lucas 10001 lowers the temperature of the oil in petrol or diesel engine. I like that the unit timely increases oil pressure, however, it isn’t able to control the noise level during the engine’s work. Choose only the best, choose Lucas oil treatment. Use Lucas oil additive and your engine will be grateful to you. As you know it also known as a diesel oil additive.

    Pros

    • The product has a sticky structure, so it decreases the friction and protects from smoke appearing, it’s one of the best oil additive to stop smoke. It’s always better when your engine stops smoke.
    • The engine additive helps get rid of knocking while running.
    • It smells neutral.

    Cons

    • It is a type of heavy-duty oil, so some modern vehicles can have a backlash (the engine may stop working so it’s better to check the instruction before additives using).
    • It can cause sticky rings.
    • The additive has a chemical composition and it can badly affect the rubber parts.

    Rislone 4416: Versatile Product that Decreases the Oil Changes Frequency

    Rislone 4416-6PK
    I can’t call Rislone the best oil additive to stop smoking, but this product seals the cylinders to prevent the oil from rising (which may lead to its burning). It also averts the pollutants in the combustion chamber from lowering that can become a reason for oil’s premature destruction. The unit allows increasing the interval between oil changes by at least 50%. The Rislone doesn’t influence on worn engines greatly, while more expensive liquids are able to cope with difficult tasks.

    Pros

    • It creates enough seals at the rings to abate the blow-off to a manageable level.
    • The product looks like honey and smells fine.
    • It can be used as in old cars, as in modern vehicles (but not in those with “dying” motor).

    Cons

    • Within 10 minutes of adding the good oil into the engine, the warning assign appears on the dashboard.
    • The liquid can appear too thick for the passages via which the engine oil flows.

    Bar’s Leaks 1000: Deep Cleaning and Noise Reducing

Bar's Leaks 1000
  • Substance adheres to the metal surfaces rather quickly. Being mixed with the engine oil, the additives prevent oil from burning within the engine and keep vehicle details clean. The Bar’s Leaks 1000 prolongs the time during which the lubrication is maintained, as well as the service life of seals, bearings, and other components. After its usage, I’ve noticed a lack of smoke and the absence of harsh sounds while the engine is working. At the same time, the Bar’s Leaks has an unpleasant smell. I would not advise leaving the bottle in a warm place because, after that, there appeared some crystallized elements in the liquid.

    Pros

    • The engine started to work quieter in the higher RPM range.
    • It protects against rust, corrosion, and dry start due to prolonged downtime.
    • Oil, combined with the Bar’s Leaks 1000, won’t flow out of cylinders and gears.

    Cons

    • Blended components can conflict with each other. Alcohol neutralizes the oil and the product will bring no harm, no use.
    • At the beginning of usage it helps, but then the problem with the smoke may come back.

    The Best Oil Additives to Stop Leak

    Jump to

    AT-205 ATP: Stops Leaks and Work at High Temperatures

    AT-205 ATP
    The matter retains its viscosity at high temperatures. Conventional oils often lose their lubricity and shear strength when reaching the limiting high temperature. Adding the AT-205 ATP to the oil protects the engine and bearings from the overheating. It stops leaking relatively fast and doesn’t contain harmful components (petroleum distillates), which can be found in other company’s products. The additive is fully compatible with synthetic and mineral oils. It has everything to become the best engine oil stop leak, but its high consumption and costliness are unprofitable.

    Pros

    • It can prevent a drop in engine oil viscosity even with the frequent cold start. This isn’t the best engine treatment feature but helps prolong the engine’s life.
    • Due to the product elements, the unit protects engine components with high loads on it.
    • It can seal up the leaky pan gaskets even in the old car.

    Cons

    • The result doesn’t appear instantly. It takes some time for the liquid to stop the leaking.
    • The AT-205 dilutes the oil very much. After it’s using, a low oil pressure sign appears.

    Lucas Oil 10279: Reduce Friction and Is All-Season Product

  • Lucas Oil 10279
    • It’s better to use the product with conventional oil because synthetic has improved penetrating qualities. Together with conventional liquid the Lucas Oil 10279 can protect the engine and stop the leak. The car owner has to pay great attention to the fact that the additive can’t cope with rotted oil pan and broken gasket, but it can fix the drying gaskets. The Oil 10279 is helpful in low-temperature conditions because the matter covers the engine, reducing the friction. The product doesn’t require special oil treatment conditions, but it’s better to place the bottle at room temperature. If you don’t use the additive for a long time, a thin film appears on it, and the substance itself starts to smell unpleasant. Choose only the best oil additive.

      Pros

      • Due to the oil density, it lasts a long time.
      • It protects the engine details from corrosion (thanks to the special coating components in the composition).
      • It reduces the noise of the engine.

      Cons

      • The Lucas Oil 10279 consists of petroleum items, which may be harmful to old vehicles and their engines.

      Bar’s Leaks 1040 Grey: Solvent, which Tights the Seals

      Bar’s Leaks 1040 Grey
      The product differs from most oil additive due to its composition and main task. Many modern products consist of glue and materials, which intended to fill cracks after contact with air. The Bar’s Leaks 1040 Grey isn’t a glue-basic unit, and it doesn’t leave marks on the engine. It can be perceived as a solvent, which influences rubber and leads to its swelling. After this, the seal becomes tighter, however, if it’s broken, very old, or deformed, the additive won’t help. It surely isn’t the best oil stop leak, but notwithstanding the advantages and disadvantages, the Bar’s Leaks performs its direct mission without questions.

      Pros

      • It’s highly concentrated, so for engine oil mixing it is necessary a small amount of liquid.
      • The unit doesn’t have a smell at all.
      • It can be a great solution for long trips.

      Cons

      • This additive is a short-term solution to the problem, so it’s better to use it periodically or to visit an auto service company.
      • After being in a warm place, some lumps appeared in it.
      • The constant use of such additive increases the film layer. In some time the engine may be beyond repair due to too the thick film.

      Preview
      Lisle 17232 Right Angle Funnel
      FloTool 10719 Capless Gas Tank Funnel
      WirthCo 32855 Funnel King Blue Multi-Purpose Funnel for Cap-Less Gas Tanks, 11" Long
      WirthCo 32006 Funnel King Red Safety Funnel with Screen/Strainer  Funnel for Oil, Fuel, Gas, and Automotive. Large 6 Quart Capacity
      Title
      Right Angle Funnel
      Capless Funnel
      Multi-Purpose Funnel
      Safety Funnel with Screen
      Price
      $12.95
      $1.99
      $6.50
      $8.79
      Preview
      Lisle 17232 Right Angle Funnel
      Title
      Right Angle Funnel
      Price
      $12.95
      Preview
      FloTool 10719 Capless Gas Tank Funnel
      Title
      Capless Funnel
      Price
      $1.99
      Preview
      WirthCo 32855 Funnel King Blue Multi-Purpose Funnel for Cap-Less Gas Tanks, 11" Long
      Title
      Multi-Purpose Funnel
      Price
      $6.50
      Preview
      WirthCo 32006 Funnel King Red Safety Funnel with Screen/Strainer  Funnel for Oil, Fuel, Gas, and Automotive. Large 6 Quart Capacity
      Title
      Safety Funnel with Screen
      Price
      $8.79

      General Oil Additives

      Jump to

      Lucas LUC10130: Nano-Modified Product that Reduces Oil Consumption

      Lucas LUC10130
      Stabilizer creates conditions under which the surfaces of the engine friction units are covered with a nano-modified protective layer, which has a low coefficient of attrition and high wear resistance. This layer partially restores the size and geometry of worn parts, optimizes gaps in friction pairs, and holds more oil on surfaces. For vehicles with a mileage of up to 30.000 miles, it’s better to make a double treatment, while with a mileage of more than 30.000 miles – three or four treatments, depending on runout. The product was originally designed for racing, that is why it withstands high temperatures and pressure in extreme situations.

      Pros

      • Even after a short run, I’ve noticed an engine noise decreasing.
      • Thick consistency and productivity reduce oil consumption.
      • The additive diminishes the harmful emissions of exhaust gases.

      Cons

      • There is the possibility of short-term operation in conditions of oil starvation.
      • After this additive usage, the engine starts to vibrate even more than it did before.

      Sea Foam: Synthetic Oil Stabilizer that Raises Oil Pressure

      Sea Foam
      The Sea Foam is a petroleum-based product. It is safe for engine parts, oil seals, gaskets, catalytic converters, and sensors. The Foam facilitates the engine to start at low temperatures due to its specific consistency and frost resistance. The unit makes the engine work smooth and quiet; moreover, it’s popular around the world. The unit is compatible with all mineral, synthetic, semi-synthetic, one, and all-season oils. It works well with modern cars, but I can’t call it the best oil additive due to its futility for old cars.

      Pros

      • It doesn’t contain aggressive chemical detergents.
      • The product slowly and safely dissolves carbon deposits and removes them from the system while the engine is running.
      • It reduces the noise of the hydraulic lifters and raises oil pressure.

      Cons

      • The result appears not immediately. After the Sea Foam pouring, the exhaust smokes for 5-10 minutes, and after this period everything returns to normal condition.
      • It can’t remove varnish that remains after using some premium oils.

      REV-X Stiction Fix Oil Treatment: Reduce Friction and Cleans Adhesiveness

      REV-X Stiction Fix Oil Treatment
      The liquid accelerates the engine running process. Especially such a peculiarity is useful after overhaul (due to the adaptive properties and mating friction parts optimization). It prevents leakage of oil and its ingress into the environment. Additive restores the elasticity of rubber and plastic gaskets, glands, reduces friction, and burning oil consumption, it is very important to choose only the best additive for burning oil. Due to its low density, fluid is able to smear even hard-to-reach areas/details. It may be harmful to old cars because sometimes the insides of the engine can be covered with a viscous layer that clogs the channels. After this, the unit has to be disassembled and washed thoroughly.

      Pros

      • It aligns the high-temperature viscosity of the oil and reduces noise during engine operation.
      • The product can be added to the good oil at any time.

      Cons

      • The rear main seal starts gushing after the REV-X Stiction use.
      • The effect of the additive influence appears after about 400 miles, and the car owner has to wait for this.

      Archoil AR9100: Unit Prevents Engine’s Dilution and Oxidation

      Archoil AR9100
      After product application, there is a dynamic load reduction on the main engine parts and an increase in its operating period. Additive positively affects the recovery of detergent, viscosity, and extreme pressure characteristics of the oil. In addition, the protective components prevent dilution, oxidation of engine oil under extreme loads, and a breakthrough into the crankcase of gases that forms in the combustion chamber. Due to this additive using, there is a decrease in exhaust emissions and fuel economy. At the same time, the Archoil AR9100 is able to pollute the filter.

      Pros

      • The liquid increases the compression, restores the mobility and piston rings sealing.
      • It improves the stiction a lot and makes the cold start better.

      Cons

      • The additive doesn’t work in hot weather. It can be used only at low temperatures.
      • The product is crusted after being in the garage, and I don’t think it’s a normal liquid reaction.

      Liqui Moly 20002: Relieves from White Smoke and Fill Micro-Cracks

      Liqui Moly 20002
      A small amount of the Liqui Moly oil additive is enough to make the engine works cooler. Its temperature is only 5 degrees Fahrenheit, so the chiller system doesn’t kick in far too often and works faster. The engine also works quieter. I definitely like that the additive can be mixed with different available engine oils. It protects the engine details even under heavy loads and in high-temperature conditions because special components cover the units with the barely visible film. It’s clearly seen that oil is moving better with less peripheral resistance. The Liqui Moly oil additive has a rather unpleasant smell and extremely thick texture, so it’s hard to pour the liquid into the oil filler. Find some Liqui Moly reviews and see that it really works well.

      Pros

      • There is no puff of white smoke while starting the car. The liquid got rid of this problem.
      • Gas mileage went up 0.5 MPG and this indicator is rather good.
      • It is a suspension of ultra-fine ceramic particles, which can fill the micro-cracks, while many other additives contain molybdenum (less effective element).

      Cons

      • The product paints camshaft position sensors with a silver substance.
      • Appears the “check engine light” on the dashboard.

      Buyers Guide

      Jump to

      Oil Additives: What are They?

      Special additives are particular matters, which constitute a part of base oil. Such admixtures allow it to function normally, as well as to improve the quality of the oil and its performance properties. With the current level of engine development, the use of pure oil without additives is almost unachievable. It’s hard to create oils that would provide effective protection for the engine and at the same time won’t be ruined with time. Additives can prolong the engine’s life and significantly increase the final effectiveness of the oil.

      How Do Exactly Oil Additives Work?

      Most of these additives work as catalysts that accelerate the crystallization process on the engine’s friction surfaces. A special protective layer appears under their influence. This coating takes the load during the power unit operation. When using different additives for the oil, the crystal lattice of metal components restores. If you disassemble the engine that worked with the additive, you will see that all the parts have a smooth mirror surface, so most of these products can propose great engine treatment.

      How to Use Oil Additives?

      All you need to do is to pour the content of the bottle into the oil filler. Allow the engine to idle for 10 minutes or drive a mile at an average speed. Don’t forget that it isn’t easy to choose the best oil additive, especially for older engines, so you should pay attention to the composition of each additive and follow the instructions from the manufacturer. Experiments may harm the engine and deprive the car of fully functioning.

      Is it Safe to Use Oil Additives?

      Yes, but only if you follow all the instructions. Correct selection of additives has a positive effect on the working areas, exposed to the greatest friction. The supporting capacity of bearing joints is restored by reducing the height of asperities. Antifriction layers significantly diminish the chafe force and increase the hardness values of the element’s rubbing surfaces. Some checks showed up that the right oil additives choice and strict adherence to the manual can decrease the rate of runout, mechanical damage, mitigate fuel consumption, and increase the engine’s life.
      Oil Additives

      What Type of Oil Additive is Best for Old Engines?

      In this case, it is necessary to use general additives to improve the overall condition of the engine but adhere to the maximum dosages. In addition to performing the main tasks, these oils can cope with:

              • Leaks. Over time, seals in the engine can begin to break down. Additives are able to stop oil leakage and protect worn seals from further destruction.
              • Overall wear. Oil improvers reduce the intensity of friction, which favorably affects the general condition of old engines.
              • Slime Sludge. It is tar-like sediment that can form in the engine as a result of thickening or destruction of the oil (this also happens because the frequency of oil changing is low).

      In a case of wrong additive choosing, it can coag and shut off the oil channels. Connecting rod liners can fail as a result of wong product usage. Moreover, don’t forget to follow the oil change period. No oil additive can overcome careless maintenance methods.

      What Oil Additive Can Stop Engine Knocking?

      You should choose among general oil additives because when they ingest inside the powertrain, all useful elements mix and distribute throughout the system. The product can diminish the clearance between runout surfaces and minimize friction. Some of the consisting elements deposit on the parts with increased clearance, reducing it. The rest circulates through the system, providing an increased resource of the powertrain. It is important to understand that additives are not intended to restore old or dirty oil, they can increase its quality. Also, with the help of them, it is impossible to reanimate the engine with an exhausted resource or fix serious malfunctions. Car oil additives only help improve the work of your powertrain. Use only the best car oil treatment.

      Is it Possible to Increase Oil Pressure with Additive?

      The answer is partly affirmative. Some oil additives are viscosity improvers or detergents, and they can temporarily increase pressure. At the same time, the car owner has to understand that such problem signals about serious engine problems, which can be solved only with the help of the auto repair shop. The oil additives can be good in many situations, but in this case, it is able to delay the solution of the problem for a short time but not to solve it.

      Preview
      Sea Foam SF-16 Motor Treatment - 16 oz.
      Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
      Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
      Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2)
      Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
      Title
      Extreme Marine & Rv SF-16
      Archoil AR9100 Oil Additive
      Liqui Moly 20002
      Marvel Mystery Oil MM12R
      Liqui Moly 2009
      Capacity, oz
      16
      16
      10
      1 Gallon / 16 oz / 32 oz / 32 oz 6 Pack
      300 ml / 300 ml 12 Cans
      Oil type for
      all types
      all types
      all types
      all types
      all types
      Product Dignity
      Cleans injectors
      Extends component life
      For high and low temperatures
      Reduces and prevents varnish
      Lubricant on all friction surfaces
      Price
      $6.97
      $44.95
      $21.25
      $19.75
      $7.99
      Preview
      Sea Foam SF-16 Motor Treatment - 16 oz.
      Title
      Extreme Marine & Rv SF-16
      Capacity, oz
      16
      Oil type for
      all types
      Product Dignity
      Cleans injectors
      Price
      $6.97
      Preview
      Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
      Title
      Archoil AR9100 Oil Additive
      Capacity, oz
      16
      Oil type for
      all types
      Product Dignity
      Extends component life
      Price
      $44.95
      Preview
      Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml
      Title
      Liqui Moly 20002
      Capacity, oz
      10
      Oil type for
      all types
      Product Dignity
      For high and low temperatures
      Price
      $21.25
      Preview
      Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2)
      Title
      Marvel Mystery Oil MM12R
      Capacity, oz
      1 Gallon / 16 oz / 32 oz / 32 oz 6 Pack
      Oil type for
      all types
      Product Dignity
      Reduces and prevents varnish
      Price
      $19.75
      Preview
      Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
      Title
      Liqui Moly 2009
      Capacity, oz
      300 ml / 300 ml 12 Cans
      Oil type for
      all types
      Product Dignity
      Lubricant on all friction surfaces
      Price
      $7.99