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Best Automotive Evap Smoke Machine For Cars [2020] | (See our Top 7 Picks)

Fuel leaks may happen at any time and without even prior notice. For short distances, it’s okay… but when it comes to a longer distance, this can be a fearsome problem for any car. The Evap system of any car duly protects from such leaks and keeps the fuel systems safe. But sensors may get knocked down at any time without even considering the engine health and the gasoline vapors. A duly test can make things go right. So with the right Evap smoke machine tester kit for cars, it’s not a difficult task to check whether the emission is working properly or not. Of course, the kit comes with several accessories that make testing done within a few minutes.

How to Use an Evap Smoke System?

The usage of any Evap machine is not as difficult as it looks from a professional’s guide. If you’re trying this for the first time, you may not end up doing it correctly. This is why having an instruction guide with the model is important. However, if you’re willing to look for the procedure, you can just follow the guide mentioned below:

  1. The first thing that you will need to do is to assemble the entire kit. You can take the help of the instruction manual provided and then proceed. Once you are done, you will have to connect an adapter to the Evap part where you want to continue the testing. You need to make sure that the hose fits tightly onto the emission system.
  2. The next step that you need to do is to add additives to the hose. You need to make sure that you are filling up the smoke machine with the required amount of oil or other lubrication. This will allow a free molecular motion inside the tester machine.
  3. Once you are done, you will not have to turn on the machine. For this, you need to connect any of the power sources available. This can be the 12V power outlet from the battery or a 220 Volt supply from the socket. You need to check which type of adapter is compatible for you to use. Some of them may have both options.
  4. Now, you need to simply turn the power on. After the power is turned on, you need to switch on the tester kit. Wait for a few seconds before you start getting the readings.
  5. You can now check all the essential parts of the Evap system. You need to check if there is any sign of leaks present or not. If you are unable to trace, you can take the help of UV light to view if there are any leaks present within the pipe.

How does the Automotive Smoke Machine Work?

Every machine in an automobile has its different mechanism that allows them to work. However, coming to the Evap smoke machine, it is particularly a testing kit that is designed to detect any type of leaks caused due to the gasoline present inside the Evap chamber. However, the automotive smoke machine uses an inbuilt heater that can be used for evaporating the special oil in terms of smoke. Once the evaporation is done, you can now push the machine where you can wish to check in terms of leakage and other faults inside the machine.

The Evap machine is specially designed that can detect even the smallest leaks. To be specific, it can easily leak below 0.010 Inches. Since most of the kits come with additional UV light, it also becomes easier to get the details through these. If you draw the light onto the Evap system, it will show the traces from where the UV light is being leaked.

Apart from this, evap smoke testers tool kit also comes with an external heater. This heater runs with the help of a stable power supply that may either be from a 220 Volt socket or the 12V car batteries. The battery sends in the power and allows the Evap machine to work. As a result, it can push the compressed air into the test area.

Best automotive Evap Smoke Machine For Cars

1. AUTOOL 1 Automotive Pipes Fuel Leakage Detector


  • Brand AUTOOL
  • Model SDT206
  • Weight 11.48 Pounds
  • Dimension 10.83 x 11.81 x 7.68 inches

This tool is precisely manufactured to provide high-pressure smoke through the pipe. It can have a great flow rate of 6L/min along with an adjustable PSI of 23PSI and it delivers according to the needs.

The AUTOOL 1 Automotive Pipes Fuel Leakage Detector has 2 modes that allow easy and smooth operations. Both these air and smoke mode can detect the leakage of the Evap system.

It comes with special technology to change the baby oil into smoke. Since it features an additional filter, it is completely safe to use for the longer run.

The best part of using the AUTOOL 1 Automotive Pipes Fuel Leakage Detector is the option of having a 4ft outlet pipe. This allows any professional to reach out to the interior of the Evap system.


  • Flow Gauge
  • Liquidometer Gauge
  • Adjustable Flow Switch
  • Fluidometer Gauge
  • Comes with EVAP adapters
  • Adjustable 0-23PSI
  • Smoke output value 6L/min

Things We Like

  • Comes with the Oil filler
  • Smoke output tube
  • Power cable port
  • Includes Power switch
  • Alarm indicator
  • Airflow meter
  • Oil level meter

Things We Don’t

  • Price may be a bit high
  • Takes time to assemble

2. OTC 6522 LeakTamer EVAP Smoke Machine For Cars


  • Brand OTC
  • Model 6522
  • Weight 11 Pounds
  • Dimension 18 x 18 x 12 inches

The OTC 6522 LeakTamer EVAP Smoke Machine features a cap plug kit. This kit is specially designed to reduce the problems while installing the product.

There is a flow meter present on the front panel of this unit. It helps to know if there is a leak in the vehicle and where can it originate from. This can be used as a quick-pass test for leaks.

It features a service port adapter. This adapter is mainly used to connect with the LeakTamer unit as it gives a proper service port to the Evap system. Thus, it can reduce a lot of time for installation

The OTC 6522 LeakTamer EVAP Smoke Machine comes with a water separator filter with the product. The filter makes sure that there is a proper vacuum and only air flows through the hose.


  • Smoke flow control
  • UltraTrace UV smoke-producing solution
  • Schrader removal
  • Service port adapter

Things We Like

  • Low Maintenance Required
  • Detects Micro-leaks
  • 1-year warranty
  • Cap Plug Kit
  • Uses UltraTrace UV Dye
  • UV combination with a laser pointer
  • Exhaust adapter cone

Things We Don’t

  • Big in Size
  • 3 AA batteries required

3. Redline Detection 95-0003C Leak Detector


  • Brand Redline Detection
  • Model 95-0003C
  • Weight 6.5 Pounds
  • Dimension 5 x 6 x 11 inches

The Redline Detection 95-0003C comes with high-quality material when it comes to the build-up. It is quite sturdy in the construction and durable for long life as well.

This product comes with a thick smoke system. It allows the unit to detect the leaks with the thick nozzle. However, the overall unit is still compact.

It features dual-stage testing with the help of both smoke and non-dyed air. As a result of this, it becomes much more precise to locate the minute leaks present within the Evap system.


  • OEM approved smoke-producing fluid
  • Low maintenance model
  • 1-year warranty

Things We Like

  • Compact in size
  • Light in weight
  • Easy to carry
  • Simple to use

Things We Don’t

  • Not high smoke flow
  • The pressure is not the highest

4. STINGER EVAP Smoke Leak Detector


  • Brand STINGER
  • Model Pro 2
  • Weight 11 Pounds
  • Dimension 12 x 12 x 8 inches

This precise model from Stinger comes with a 12-feet long cable. Moreover, the lightweight design of the product allows easy carrying of it from one place to another.

The product features two universal smoke hoses. So if one gets damaged, there is always a space hose that you can easily replace. Furthermore, the power cable is also thick providing stable power supply.

It comes along with a dedicated smoke control valve. There is a dial present in the unit that can be easily adjustable to control the flow of the smoke according to the needs. It is highly beneficial for regular uses.

Moreover, this product comes with heavy-duty steel-based battery clips. These clips are specially designed to prevent wear and tear and can easily go for long.


  • Smoke Flow Control Valve
  • 1-PSI Pressure Regulator
  • Two Custom Smoke Tips
  • 6-Foot Smoke Hose
  • Heavy-Duty Fused Cord

Things We Like

  • 12- Foot Cord
  • Light in Weight
  • 1-year warranty
  • Easy to operate
  • Low maintenance
  • Sturdy steel battery clips

Things We Don’t

  • Makes some noise
  • Power consumption is more

5. AUTOOL SDT206 EVAP Leak Testers


  • Brand AUTOOL
  • Model MOT232-SDT206
  • Weight 3.3 Pounds
  • Dimension 12.99 x 2.95 x 8.66 inches

The AUTOOL SDT206 EVAP Leak Testers come with a dual testing model including air mode and the smoke mode. Having such benefits means that it can detect the leaks precisely.

It features an upgraded technology that takes the least time to start up. To be precise, the machine starts up as soon as someone hits the start button. So it can work very fast.

The AUTOOL SDT206 EVAP Leak Testers include an inbuilt air compressor that has a high smoke value of 6L/min. Because of the high flow, the smoke layer is very thick and it becomes easy to detect.

The product comes with a self-protective system to enhance safety features. It also has some alarm systems that can let you know when the Evap test kit is over-run.


  • Air more and smoke mode
  • Dual compressors present
  • Instant smoke generation
  • Self-protective system

Things We Like

  • Overload protection alarm
  • Overheat protection system
  • Liquidometer Gauge
  • Flow Gauge present

Things We Don’t

  • Price is a bit high
  • Requires maintenance

6. MRCARTOOL T110 2 MODE Automotive Tester6 EVAP Leak Testers


  • Model T110
  • Weight 8.8 Pounds
  • Dimension 11 x 11 x 10.75 inches

The MRCARTOOL T110 2 MODE Automotive Tester has simple Evap support that can provide easy installation procedures. It hardly takes around 3-5 minutes to get the total setup done.

It comes with a specified hook system to mount the detector while working. The hook allows you to attach the unit to any part of your car. Moreover, it includes a working indicator to detect the status of the product.

This smoke machine for cars features a decent smoke output tube. Though the tube is not very long, it is still efficient to throw out thick smoke that also includes a detection port.

Apart from this, you can get a sturdy power clop with the product. The power clip can be easily attached to the 12V DC battery of your car whenever you are stuck on the road.


  • Power DC12V
  • Vehicle battery
  • Smoke output value 6l/min
  • Built-in air supply
  • Controllable flow value

Things We Like

  • Power clip
  • Smoke output tube
  • Power Switch
  • Working Indicator

Things We Don’t

  • The hose is not so big
  • May overheat

7. Smoke-Tek Evap Smoke Machine Tool


  • Brand Smoke-Tek
  • Model 1
  • Weight 5 Pounds
  • Dimension 5 x 6 x 11 inches

The Smoke-Tek Evap Smoke Machine Tool features two power clips that can easily connect to the battery of your car. Moreover, it contains another power cable to connect to the supply line.

It comes with a high-quality supply hose. This hose is specially designed to provide smoke vapor to the Evap system. Thus, the smoke is thick and it becomes easy to detect leaks.

Apart from this, you can get a pressure regulator to increase or decrease the pressure to safe levels. This is also supported by a flow control valve that allows controlling the smoke going out.


  • Detect small leaks
  • Uses Mineral Oil
  • Portable in nature
  • Easy to install

Things We Like

  • Low Cost
  • Easy to use
  • Great interior parts
  • Simple to read instructions

Things We Don’t

  • Not for gas cylinders
  • Cannot detect micro leaks

Factors to Consider Before Buying automotive Evap Smoke Machine For Cars

1. Smoke Output

One of the most important things that you need to consider is the smoke output of the Evap machine. Every Evap tester kit has an inbuilt smoke generator that allows testing any leakage inside the Evap system of the car. However, it is evident that with a proper smoke output value, it becomes much easier to detect where the leak is exactly located. Generally, any Evap machine that will have a smoke output value of 3-6L/min is a great choice to have for any professional. It allows the user to get fast and effective results without any problems.

2. Output Pressure

The next important factor that you need to consider is the output pressure of the Evap smoke machine. Having a higher output means that the pressure will also be higher. As a result of this, it will allow the compressors inside the machine to work efficiently. Make sure that the output pressure is adjustable between 0-23 PSI. Having a decent pressure will make sure that the pressure inside the Evap system is high. Because of this, it will specifically mark where the leakage is coming from.

3. Heating Material

Just like the heating measurement, the heating material is also an important aspect of any Evap smoke machine. Since they do not have any inbuilt smoke generator, they use it to heat oil. The oil is not available with the kit, but because of the heater available inside, the oil starts to evaporate causing smoke to detect the leaks. This is the reason why heating material is important. Usually, there are two different types of heating materials available and they include either the mineral oil or baby oil elements. As a result, it becomes much easier to blow air to the sealed pipe.

4. Accessories

The next imp things that you need to consider are the accessories. If you are choosing a complete Evap testing kit, it is evident that this device will come with multiple other spare parts and tools. As a result of this, it becomes handy to get all the important types of equipment just within your reach. You need to make sure that the kit contains adequate gauge, pipes, testing tools, clips, and other cables and seals that will help you to complete the procedure. Before buying make sure that you check all the products including and it will help you to continue the work.

5. Oil Filter

Having filters with the Evap system allows you to pour in the oil. It is evident that every time you pour in the oil, it may not be as clean as much you would expect. But with a proper oil filter, you can be assured about not affecting the interior components. There should be a filter placed on top of the tank that will allow the oil to get rid of the toxic gasses while the tester is still evaporating. The better quality of oil filters you have, the longer the smoke machine will continue working.

6. Air Flow Meter

In any Evap tester, there is a dedicated airflow apart from the smoke flow. So individually there are two different compressors available with the product. When the airflow is in the right direction, it will allow the heater to operate fast. As a result of this, having a proper airflow meter becomes quite helpful for any user.

7. Alarm Indicator

An alarm indicator is one safety feature that every user will like to have with their smoke system. Since the Evap testing machine comes with dual compressors, it is liable for providing airflow and smoke flow. As a result of this, overheating may be a common problem with such tester kits. Having an alarm indicator will let you know when things are going wrong and there are problems. Some of the models also come with a LED display or LED indicators that let you know where the problem exactly is.

8. Power Consumption

To run an Evap machine system, one of the most important things that you need to consider is the power consumption of the product. To run, it will always require an external power source. However, the best part is that the product has a step-down transformer that even allows converting a higher voltage supply to a comfortable range. The professional Evap smoke machines come with options of using both 12V batteries operated power and 110/220 V AC power supply. It’s good to have both options as you may not get the AC power supply when you are traveling in the car.

9. Smoke Tube

Another important factor that you need to consider is the option of having a smoke tube. If you have only one tube with the Evap testing kit, it must be the airflow tube. You need to ensure that it is compatible with smoke emission or not. If not, you need to make sure that you get a proper smoke tube as a part of the testing kit.

10. Size

Choosing the size of the Evap smoke machine is always a difficult task in hand. Since it comes with a complete set of measuring tools along with a long tube and also the essential accessories, it becomes quite big after the assembling is done. This makes the total unit quite big. So before you buy an ideal product, you need to make sure that the product has a small and compact size that allows you to easily carry the product.

11. Weight

Similar to the size and the dimensions, the weight of the product is another essential factor to consider. While you are completing a test, you need to lift the Evap testing kit, place it as close to the Evap system as possible and then check multiple locations. So make sure that the product is light for you to carry. This will help you to get the ideal product as per your choice.

12. Cost

If you are purchasing this for the first time, the cost can always be an essential factor for you. Compromising on the costs can be considered, but compromising the essential features can prove to be costly for you. Consider having automotive evap smoke machine as a one-time investment that will serve you for the upcoming years. So based on this; you can pick any of the products mentioned above.

Frequently Asked Questions

Is an Evap Leak serious?

This question is hilarious… it felt as if you were asking if gas leaking from your oven was dangerous or not! Of course, it is! The Evap leakage will seem to be fine at the initial stage, but once you start ignoring it, it grows bigger, and eventually, your car will break down. Before it does, just get the things sorted

How to check the Evap leaks?

There’s a testing tool for everything if you are operating a machine. For your car, the Evap smoke machines will do the job for proper testing. Once you complete the assembly, you need to fit the Evap system. The smoke emitted is harmless and comes out of the leak location

How long does it take to complete the Evap test?

To be fair, it took me just 2-3 minutes to be a professional. But if you are doing it for the first time or just a noob, it will take you a maximum of 8-10 minutes. That’s not because it will be difficult to find the leaks, but because it will take time for you to assemble the product according to the given set of the instruction manual.

Can a vacuum leak cause white smoke?

White smoke is not harmful at all and to be specific, it’s nothing that you can worry about. The white smoke comes out when it evaporates the burning coolant. As a result of this, it becomes much more important to continue with the testing procedure and then get an accurate leak location

Editor’s Pick

Having an evap smoke machine means that you can get a proper detection of leakage when it comes to testing. Just purchasing a random Evap testing kit is of no help if you do not wish to keep it for long. So you must choose the product that helps you to solve your problems in minutes. After going through a handful of products, it became a daunting task. However, I could still manage to pick up some of the best available in the market today.

The AUTOOL 1 Automotive Pipes Fuel Leakage Detector is my choice at the editor’s pick product available. This product includes a massive smoke output of 0-6L/minute and allows us to easily test the leaks. The output pressure is variable from 0-23PSI which allows an easy flow of smoke and airflow.

The OTC 6522 LeakTamer EVAP Smoke Machine is my choice as the premium pick product. To be fair, it is one of the most demanded products in the market that can easily detect leaks below a 0.010-inch hole. This product will have all the features that are required for easy readings.

The Redline Detection 95-0003c Leak Detector seemed to be the best value for money buy. This product features a brass cone that can simplify the material it is made up of. All the amenities present to add great value to the set. Moreover, it uses an OEM approved smoke-producing fluid.

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