Engine Compression Additive

Best Engine Compression Additive

Nothing is more frustrating than not knowing which is the best engine Compression additive

to buy. You could spend hours researching and discovering the ideal diesel engine oil additive.

Engine oils are not supposed to enter the combustion chamber of your engine and burn with the fuel. When this happens, the phenomenon is known as burning oil, which means that the oil is burning here.

It’s a common problem with older vehicles. And one of the simplest ways to stop burning oil is to use oil additives. But how exactly?

Here we’ll learn how oil additives function, the many types of oil additives, how they’re used, the benefits of them, and mostly, what is the best engine restore additive. So, without further ado, let’s explore it.

Product ImageProduct NameOur RatingsPrice
Bar's Leaks Oil Seal Engine Oil Burning and Leak RepairBar's Leaks Oil Seal Engine Oil Burning and Leak RepairCheck Price
Restore (00016 8-Cylinder Formula Engine Restorer & LubricantRestore (00016 8-Cylinder Formula Engine Restorer & LubricantCheck Price
Rislone High Mileage 4 6 8 Compression Repair, 16.9 ozRislone High Mileage 4 6 8 Compression Repair, 16.9 ozCheck Price
Bar's Leaks High Mileage Engine Repair, 16.9 ozBar's Leaks High Mileage Engine Repair, 16.9 ozCheck Price
Restore (00012 6-Cylinder Formula Engine Restorer & LubricantRestore (00012 6-Cylinder Formula Engine Restorer & LubricantCheck Price

What is?

Oil additives are mixed with basic oil to improve lubrication in automobile engines. This includes assisting in the reduction of friction, wear, corrosion, and oxidation, which can all lead to compression issues. When a vehicle’s compression fails, the engine loses power, fuel economy suffers, and the engine may even burn oil. There are oil additives designed to help with engine compression issues.

 How Does the Engine Restore Work?

 How Does the Engine Restore Work

The Engine Restore is required to run any engine, whether gasoline or diesel. Compression is the process of confining and pressing a mixture of air and fuel into a limited volume within the cylinder of an engine. All of the molecules are pressed together under extreme pressure in this process. Due to the presence of a spark plug in a gasoline engine, only moderate compression is required, requiring around 140-160 pounds per square inch. The compression factor is specified by the manufacturer. The compression and ignition of the air-fuel mixture are what generate the necessary power to run a vehicle.

How to Use Engine Restore?

How to Use Engine Restore

The regular usage of vehicle engines generates a lot of heat and friction, both of which cause metal surfaces within the engine to wear down. As a result, compression leaks can occur in places like the space between the piston rings and the cylinder walls.

Reduced engine power, slow engine running, oil-burning, engine starting issues, and, in certain extreme circumstances, engine knocking are all common complaints among users of such engines.

Engine Restore is a detergent- and anti-corrosion-agent-based engine additive. It transports the microparticles into the engine, where they perform engine restoration. The principle is the same regardless of all types of an engine restoration.

The micro-particles in the additive are designed to fill in small scratches and grooves in places like the space between the piston and the cylinder wall of an automobile engine. The high concentration of Lead in these micro-particles allows them to provide optimal natural lubrication regardless of the temperature. Engine Restore additive has a reparative function due to the CSL micro-particles ability to reduce friction and rebuild metal surfaces within the engine.

How to Restore Engine Compression?

You’re probably aware that you need to restore engine compression, but you should double-check to ensure that your engine problems aren’t caused by something else. You’ll need to purchase a compression gauge and perform a compression test to accomplish this. Make sure the engine is turned off, so it doesn’t start up while you’re testing the cylinders.

Remove the spark plug and ignition coil from the cylinder you’re testing. Allow someone else to crank the engine while you keep an eye on the compression gauge. Cylinder pressure should be 100 PSI in a healthy engine. Install the compression gauge extension by screwing it in place. Low pressure in two adjacent cylinders is most often caused by a burst head gasket.

The only option to restore low compression is to replace the leaking piece, which could be the piston, piston ring, camshaft, head gasket, or valves. The problem is that it’s a costly project. People should still use it to achieve maximum efficiency.

For this, use the information above to conduct some research and find the faulty component.

Buying Guide of The Best Engine Compression Additive

Best Engine Compression Additive

Selecting a diesel engine oil additive might be a difficult task. There are so many options to pick up the additives, and they all appear to be suitable for your requirements. This guide will let you know how to identify the traits to look for and how to limit your options so you can select the best compression restore additive for you!

Consider the Brand

When selecting a diesel engine oil additive, the first thing to consider is the brand. Some oil additive brands are more dependable than others, while others have a higher reputation. You should look at many products to determine which have the finest reviews.


Not every oil additive on the market is suitable for your vehicle. Some oil treatments, for example, would work well with synthetic oil engines. It is critical that you consult your vehicle’s owner’s manual to determine which type of oil treatment to purchase. Furthermore, most user manuals will tell you which chemicals to avoid. And the best oil additives would be compatible with nearly all vehicle types.

Certification By EPA

The more environmentally friendly a product is, the better. Oil additives for older engines that can reduce emissions are usually EPA-certified. In fact, better fuel economy will result in lower emissions. The EPA certification confirms that the oil treatment does not contain any hazardous substances.

Portability and Easy-Use

Another factor to consider while selecting a product is its portability. Some items are more portable than others and can be carried around with you. If you need anything that you can take with you, a portable engine oil additive is a good option.

Lastly, when shopping for a diesel engine oil additive, consider how easy it is to use. You want something that is simple to set up and use without requiring you to read the instruction manual from cover to cover. Additive with visible instructions and supportive customer service is ideal. If you are unsure how to use a product, you may end up returning it or, worse, not using it at all.

Top 6 Best Engine Compression Additives Reviews

This secton let you know the engine restorer and lubricant review with their details specification. Indeed, it will help you to get the right additives for your engine. Let’s jump into the reviews.

1. Bar’s Leaks Oil Seal Engine Oil Burning and Leak Repair

Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair
Its composition and primary function, the Bar’s Leaks product vary from most oil additives. Many modern products contain glue and ingredients that are designed to seal cracks when exposed to air.

The Bar’s Leaks oil seal isn’t a glue-basic unit, and it doesn’t leave any marks on the engine. Sometimes the substance sticks to the metal surfaces immediately. Because the additives are blended with the engine oil, here it prevents oil from burning and keeps vehicle details clean.

Furthermore, The Bar’s Leaks product works so good with all gasoline and diesel engines, including turbocharged, EcoBoost, Hybrid, and even racing engines, in all automobiles, trucks, vans, and SUVs, including 3, 4, 5-, 6-, 8-, and 10-cylinder engines.

Furthermore, it shows the highest compatibility when it is used in heavy-duty applications like tractors, boats, RVs, motorcycles (including wet clutch), ATVs, lawn equipment, and so on

If you want to expand the life span of seals, bearings, and other components, then try to maintain the quality of lubricants for longer periods of time.

It can be thought of as a solvent that affects the rubber and causes it to swell. The seal will get tighter as a result of this, but if it is damaged, very old, or malformed, the addition will not assist. It isn’t the greatest oil stop leak, but despite its benefits and shortcomings, the Bar’s Leaks successfully completes its direct objective.

Most Liking Features

As it is extremely concentrated, just a tiny volume of liquid is required for engine oil mixing. Furthermore, there is no odor in the unit at all. So, it would be an excellent option for long journeys.

Probable Drawbacks

The application of such an addition on a regular basis creates the film layer. Due to the heavy layer, the engine may become beyond repair at some point.

Key Features

  • This high-quality synthetic blend
  • Compatible with all types of motor/engine oil, including conventional petroleum, high-mileage synthetic blends, and fully synthetic formulations.
  • Tractors, boats, RVs, motorcycles, ATVs, and lawn equipment are all examples of heavy-duty applications.

2. Restore (00016 8-Cylinder Formula Engine Restorer & Lubricant

Restore (00016 8-Cylinder Formula Engine Restorer & Lubricant
If your engine has high mileage, chances are it isn’t as powerful as it was when it was new. Every time a piston in your engine’s block swings up and down, microscopic scores are made in the cylinder walls and piston rings.

Over a hundred thousand miles, those small scuffs can add up to be a major issue, lowering compression levels by up to 25%. The loss of compression will result in a significant drop in performance, and an engine rebuild is costly. Restore Engine Restorer & Lubricant, fortunately, can assist in recovering some of that lost power.

Even under tremendous pressure, this advice fixes the small grooves in the combustion process. This indicates that this Engine Restorer & Lubricant can be used in high-boost situations. This product heals minor scuffs in all moving engine parts once it has worked its way through the oil system. The product additionally coats everything, repairing issues while also preventing future harm.

In the end, this additive helps to increase fuel efficiency and minimize oil consumption in older models, in addition to increasing performance with updated compression levels and reduced friction. This will often lessen the quantity of smoke produced by older automobiles’ exhaust.

Most Liking Features

It improves the performance of aging engines and eliminates the need for expensive engine rebuilding initiatives. 

Probable Drawbacks

Some consumers report that the device doesn’t perform well on engines with variable valve timing

Key Features

  • Cylinder compression is restored here.
  • Horsepower is also replaced.
  • Engine performance got the same strength again.
  • Reduces the amount of oil used

3. Rislone High Mileage 4 6 8 Compression Repair, 16.9 oz

Rislone High Mileage 4 6 8 Compression Repair, 16.9 oz
Rislone liquid technology with ring seal restores lost power, rebuilds compression, and fixes engine blow-by in aging engines.

This liquid in a bottle eliminates blow-by and compression loss by releasing sticky piston rings and filling grooves in cylinder walls. In addition, it decreases friction.

It’s compatible with both synthetic and high-mileage motor oils, as well as regular motor oil. Every time you change your oil, you must apply it.

This product can be used in 4-stroke ATVs, motorcycles, and other small engine vehicles in addition to cars. It is advised that 100ml per liter of oil be used in these engines. Such a combination keeps it at the place of the best engine compression additive all the time.

The product works with conventional, high-kilometer, and synthetic engine oils in both hot and cold environments. It adheres to the metal surfaces of the engine and builds up a protective layer, allowing oil to flow freely in all-weather situations.

Most Liking Features

As it is manufactured for 4-stroke engines, it can be compatible with all types. Additionally, it will solve your low compression problems.

Probable Drawbacks

Engines with two strokes are not suitable. Every oil change necessitates the installation of this device.

Key Features

  • Reduces the amount of oil used
  • Stops the flow of blue smoke
  • All engine types are compatible.

4. Bar’s Leaks High Mileage Engine Repair, 16.9 oz

Bar's Leaks High Mileage Engine Repair, 16.9 oz
By cleaning up the oiling system, many oil additives can assist improve performance and fuel economy, but the Bar’s Leaks Engine Repair solution goes a step further. This product also aids in the prevention of leaks, so if you have an older vehicle that isn’t running well and leaves puddles of oil wherever it goes, this is the product for you.

In fact, the manufacturer assures that it will stop specific types of leaks, making it excellent for a little oil leak around the pan or valve covers. It is the industry leader in preventing all types of fluid leaks, including oil leaks, while also boosting performance.

This product is packaged in a two-part bottle with a nozzle that is identical on both halves. The two fluids are mixed together before being poured into the crankcase. By reviving seals, you can help to prevent leaks. The protective layer is the second-best way to prevent future sludge buildup.

Besides, Oil and fuel consumption are lowered as a result of this one-two punch, while performance levels are boosted. This product will also minimize engine noise while increasing oil pressure in older engines.

Most Liking Features

The primary benefits of Bar Leaks are that they clean and preserve the oiling system, increase oil pressure, and prevent minor oil leaks.

Probable Drawbacks

Some leaks are too large to be cured by any additive. In that case, it will not stop every engine oil leak.

Key Features 

  • Reduces Friction
  • Increases Oil Pressure
  • Reduces Oil Consumption
  • Quiets Noise
  • Helps Clean Internal Parts

5. Restore (00012 6-Cylinder Formula Engine Restorer & Lubricant

Restore (00012 6-Cylinder Formula Engine Restorer & Lubricant
Here’s another Restore product worth considering: 12.5 Oz cylinder formula modified by Restore. This product is a little different from the others in that it’s designed to work with any type of commercial motor oil.

That means you won’t have to worry about replacing your oil additive with working with a certain brand of commercial motor oil if you’re traveling a long distance. The oil additive, once activated, will clear any deposits from the filter system.

It’s uncommon to find an oil additive that won’t degrade in harsh cold or high heat, but this product doesn’t disappoint. It even eliminates the annoyance of white smoke emissions when the car is started. Up to 5 liters of engine oil can be combined into the 300-milliliter bottle.

This Restore product has a thick thickness that makes it difficult to incorporate into an oil filler. The odor is also good, and you will love it. It is, nevertheless, still a viable choice, particularly for drivers with older vehicles.

Most Liking Features

Restores engine performance in older engines, preventing expensive engine building projects.

Probable Drawbacks

According to some customers, the product does not work well on engines with variable valve timing.

 Key Features

  • Horsepower is restored.
  • Cylinder Compression is reserved
  • Engine Performance is also Restored
  • Oil Consumption is reduced as you don’t need much.

6. XADO Engine Oil additive – Protection for Engines

XADO Engine Oil additive - Protection for Engines
Finally, The Xado engine oil is designed to enable more light sliding between the components of your ancient engine. Your vehicle’s performance will be much improved due to the smooth operation of the piston and valves.

It is one of the greatest oil additives for older engines since it aids in the restoration of worn-out engine surfaces. It also forms a protective film against future wear in addition to the restoration. To neutralize the worn surfaces, a ceramic-metal coating is produced on the engine parts.

Moreover, additives can also help to reduce engine noise and vibrations. Noises like these are rather typical in older engines. It lowers friction and provides the extra power your high-mileage engine needs. Also, it enhances the lubricating properties of oil and the tribological properties of engine assemblies.

It also considerably improves the engine’s power and acceleration. It can be used with any type of motor oil, synthetic or mineral. Additionally, these engine restorers can be used in any gasoline, natural gas, or diesel engine.

It performs best when added to fresh oil immediately after an oil change and in a warm engine. It is also recommended that oil additives be used once per oil change. Check the user manual before using a specific oil additive in a new car to see if it will void the warranty.

Most Liking Features

The product can be used as both an engine oil additive and a fuel additive in a variety of engines. Boosts engine power and compression. Moreover, Reducing toxic gas emissions lasts a long time.

Probable Drawbacks

Not suitable for heavily loaded vehicles.

It performs best when mixed with new oil and used in a warm engine after an oil change. Before applying a certain oil additive in a new automobile, check the user manual to determine if it will void the warranty.

Key Features

  • Compensates for the engine’s ongoing wear and equalizes cylinder compression.
  • Increases the pressure in the oil system to the nominal level.
  • Constructs an active system to protect parts from loads and overheating.


What are the functions of oil additives?

We know how to use an oil additive to prevent engine rod knocking. However, only a few of us are aware of how the task is carried out. It alters the viscosity of the engine fuel, to put it another way. As a result, it will be able to work more efficiently and improve the engine’s performance. Temperature variations occur as the viscosity of the gasoline varies as a result of the addition. Aside from that, it extends the life of the vehicle’s engine. This is due to the fact that it controls the temperature both within and outside.

Does Engine Restore Work?

They do indeed work! Engine additives contain a variety of chemical components that aid the engine in resolving internal issues. These additives include antioxidants to prevent rust, detergent to clean dirt, and materials that form a coating on the engine surface over time, among other things. It seals leaks and replaces worn parts to stop leaks. They also reduce friction, noise, and smoke, as well as regaining lost compression.

 How to Use Engine Restorer & Lubricant?

It performs best when added to fresh oil immediately after an oil change and in a warm engine. It is also recommend that oil additives be used once per oil change.

Check the user manual before using a specific and best engine restore additive in a new car to see if it will void the warranty.


Despite some arguments to the contrary, these six best engine compression additives

can assist in enhancing the performance and fuel efficiency of your car, especially older automobiles. The most important thing is to make sure the additive is suitable for your engine and will aid in the resolution of the problem you’re trying to tackle.

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