Mileage is an important problem for most people. Though it’s not a determinant factor, it’s still something we take into account while purchasing a used car. That’s why a lot of attention is directed towards the numbers on the odometer. If it’s too high, the vehicle costs way less. This has forced the sellers to find a way around it. Consequently, they have turned to mileage-related tools. It’s important to know whether it’s possible to remove mileage from all control units or not. Let’s dig deeper, figure out what these tools are capable of and how they are connected to control units.

What are the control units?

Control units have turned into vital components of any vehicle. They are central systems that control and manage the operation of the processor or other parts of the car. Think of them as tiny brains that receive and transmit information to make sure everything works properly. To speak more generally, a control unit is an integral part of the central processing unit (CPU). Therefore, the CPU control unit is in charge of any operation that takes place in the computer.

Other than transferring information from one device to the other, the control unit is also capable of interpreting and decoding the data it receives. If any component of the processor fails, the control unit will be the part that will have the information about its crash. It also stores the information and could be the biggest “memory bank” for the processor data.

The majority of modern cars consist of such computers. If older vehicles used only a couple of control units, nowadays the automotive industry is heavily relying on these devices. With their help, it’s possible to create a system that easily transfers information from one part to the other. This ensures the clockwork operation that we expect from any car. Every electronic component of your beloved vehicle is operated through control units. You should thank these fellas if you like closing the doors and opening windows with a press of a button.

The types of control units

Be it the mileage, fuel control, engine control, or any other function of the vehicle – they all operate with the help of Electronic Control Units (ECUs). Therefore, there are many types of these computers. They have smaller tasks to perform, but they have to communicate with one another.

Engine control, transmission control, suspension control, body control module, and telematics control – are the modules that are commonly used in the modern automobile industry. There are other control units such as electronic control of braking systems, roof and cruise control, electronic door control, and so on. However, the most important one for this discussion is the Engine Control Unit.

The engine control unit is in charge of (you guessed it) the engine. It’s a computerized system that manages the fuel injection and oversees the overall functionality of the engine. However, that’s not the only thing it does. Once it collects the data, it then transmits it to the processor. The latter is capable of reading the information, but it can also record it. The same thing happens with the mileage. The engine control unit reads the information about the mileage and records it in its system. In a world where odometer fraud is so widespread, it’s crucial to know where and how the mileage is stored.

ALU (Arithmetic Logic Unit) VS CU (Control Unit)

Arithmetic Logic Unit VS Control Unit

Arithmetic Logic Unit (ALU) is one of the main components of modern computing. It’s the circuit that is in charge of interpreting and processing the data it receives. It deals with mathematical calculations that are needed to perform various actions. This unit must have interminable access to random access memory (RAM). Its input and output are designed in a way that guarantees the continual flow of information.

ALU receives the data i.e. operation code, which tells it what to do and how. After that, this unit can start performing its main functions: arithmetic, logical, or bit-shifting operations. In brief, ALU is one of the passages that are in charge of interpreting the data and drawing logical conclusions.

The control unit, on the contrary, is the vital component of the computer processor. It’s the brain behind various operations as it gives instructions to other parts of the system. It guarantees communication between software and hardware. It communicates with memory, as well as input and output devices to make sure they know how to perform various operations.

ALU control unit is an integral part of the CU. It gets directions from the control unit and performs accordingly. To put it simply, you should think of them as the “part” (ALU) and “whole” (CU). ALU depends on the instructions from CU. It can’t operate without them.

What is the connection between control units and mileage?

As I have already mentioned, ECU i.e. engine control unit is directly connected to the mileage. It stores the data about the miles your car travels. This is possible with the help of the CAN (controller-area networking), which is one of the standards manufacturers use in modern vehicles. It transmits data rather quickly, which means it’s an efficient approach to communications.

The information flows interminably between the dashboard and the CAN bus system. Therefore, the CPU control unit can store important data about the car. This means that the odometer isn’t the only part of the car which has information about the mileage. If you were to use the mileage rollback tool, you’d be able to change data on the odometer, yet you wouldn’t be able to correct it in the CPU unit. It would create discrepancies, which are easy to check with diagnostic testers.

We might think that mileage is simply a number on the odometer, but it’s not. We should never forget that modern technology relies on various computers, be it control units or various tools. Back when cars used analog systems, rolling back the mileage was a piece of cake.

However, modern developments have turned that business into a complicated task. Some people even thought that such developments would put an end to the odometer fraud. Even though it wasn’t capable of eliminating it, it still managed to make it easily detectable. Nevertheless, people still use mileage-related tools.

Which tools do people use to deal with mileage-related issues?

The most common tools people use to solve mileage-related issues are odometer correction tools and mileage blockers. These devices are quite different from one another. It’s important to know all the differences, otherwise, you might get confused and become a victim of fraud.

People pay a lot of attention to the mileage. Even though it doesn’t reflect the condition of the vehicle fully, it’s still one of the most important factors. Therefore, the sellers do everything they can to prevent the mileage from increasing. After all, large numbers on the odometers are usually deal-breakers for the customers.

Odometer Correction Tools

As mentioned, one of the tools that people use to deal with mileage-related issues is the odometer rollback device. It’s equipment that can reverse or reset the miles on the odometer. It’s a powerful unit that can change the mileage in a couple of minutes.

People use it for many different reasons, yet it’s still quite controversial. When dealers rewind the miles on the trip meter, they are lying about the condition of the vehicle. This tool leads to deception and fraud, which means you should always take it with a grain of salt. Plus, selling cars with odometer discrepancy is not only unethical, but it could also be illegal in certain countries or states.

Mileage blockers

The other tool people turn to is a mileage blocker (a.k.a. kilometer stopper). Unlike the odometer changer, it doesn’t roll back the mileage – it just stops recording it. The manufacturers essentially designed it for testing the performance of the vehicle. Compared to the odometer correction tools, a kilometer stopper is way more ethical as it’s meant for testing purposes. However, people use this tool on the open road. It’s unethical to employ a mileage blocker in such a way, as it doesn’t have fraudulent purposes. One way to avoid deception is to purchase this tool from a trustworthy manufacturer.

Do they affect mileage in all control units?

Is mileage changed in control units?

To answer this question, we have to examine the functionalities of the odometer correction tool and a mileage blocker. As we have mentioned, the former is capable of reprogramming the odometer, while the latter stops recording the mileage. This also means that they target different control units in your car.

An odometer adjustment tool can change the data on the odometer only. Even though it’s a computer that connects to the system of your vehicle, it’s not almighty. It’s not powerful enough to change the mileage in the CU control unit, ALU control unit, or the ECU. This means that the performance of this tool is quite easy to detect with diagnostic testers. You could even request the history reports of the vehicle and check all the information about the mileage. That way, you’ll be able to find out if there’s any discrepancy.

Things are quite different when it comes to a mileage blocker. It stops recording the mileage in all the systems of your vehicle. Be it the car, truck, or SUV, it’s capable of delivering similar results. Even though it affects the whole CU system (i.e. the control process unit, ECU, and its CAN bus), it’s not advisable to use it that way. You should not use the mileage blocker for deception and fraud. Once again, its sole purpose is to test the overall performance of your vehicle. The fact that it affects the mileage in all control units is the main advantage of the mileage blocker, yet it doesn’t mean that you should use it against it. After all, you can avoid a lot of trouble if you purchase and use this tool for its intended purpose.


Mileage can be quite a headache for many. Whether you want to sell your vehicle or not, I’m sure you’re still bothered with the increasing numbers on the trip meter. Trust me, you’re not alone. We’ve all experienced a similar feeling in one way or another. However, our frustration can’t justify committing fraud and deceiving buyers.

It’s always important to give customers full information about the condition of the car. Plus, it’s impossible to remove the mileage from all control units using an odometer rollback tool. Even though the mileage stopper affects all control units, it’s not meant to be utilized on the public roads. Therefore, we should face the reality and admit that increased mileage is a natural process. Everything has its due date, right?

What is a mileage blocker? The Mileage Blocker is a special tool that allows you to prevent the system from recording any data regarding the kilometers/mileage while a car is in motion. This device is usually called a Mileage stopper, Odometer Stopper, Kilometer Stopper, Can Filter, Stop Km, Km Freezer, or Speed Blocker. Despite the numerous names they all serve the one solely purpose – to stop recording mileage from the memory of the vehicle entirely.

The mileage blocker is a small microcomputer with smart software installed in it. This allows it to have control over different systems and numbers counted by the odometer. Hence, after properly installing the blocker in your automobile, you will be able to completely stop counting any distance. More importantly, you don’t need to worry about the brand of your cars, as the device is compatible with almost all the best car manufacturers such as Mercedes, BMW, Audi, VW, Lamborghini and so on.

In addition, thanks to new technologies, the mileage blocker does not store information about the covered distance in any units. Meaning that nobody can check your actual mileage or kilometers with different devices. Therefore, all your data is well-protected and untraceable and even with diagnostic testers, no one is able to trace the mileage that was stopped while using the module.

What are the differences among Mileage Correction tools?

After answering what is a mileage stopper, it will be useful to clarify what the correction tool is about. How we can distinguish between a mileage stopper and a mileage correction tool. As you may have seen, there are multiple modules with the same goal – Mileage Correction. In order to explain the explicit meaning, it is crucial to know the differences among all correction devices that are available on market nowadays.

To start with, the purpose of the module is the main difference. There are multiple speedometer calibration and odometer rollback tools that are meant for changing the mileage indicators displayed on the speedometer. They have multiple names such as Odometer Correction Tool, Speedometer Correction Tool, Mileage Correction Tool, Speedometer rollback device, etc. However, they all simply change displayed digits in your vehicles and are quite easily traceable.

The Mileage Blocker Tools communicate with Can-Bus System. Therefore, it can also be called: Mileage stopper, Odometer Stopper, Kilometer Stopper, Can Filter, Stop Km, Km Freeze, or Speed Blocker. The purpose of this module is to stop recording mileage from the memory and not save it in any control units.

Is using a mileage blocker legal?

The simple answer to this question is YES. Mileage has a big importance for many people and car manufacturers always try to provide the proper information about it. Customers believe that the less distance a vehicle has, the better its performance will be. That is why they tend to buy an automobile with a lower mileage numbers. However, several tools hide or change the correct digits on the odometer.

Most electronic devices tend to reset mileage, roll back or remove previously recorded data that is illegal. The only ethical and legal option is to buy a Mileage Blocker. It only stops counting kilometers/mileage and does not remove any already written information. You should know what is a mileage blocker all about. Always take into consideration that this tool is supposed to be used only for testing or off-road purposes and using it on public roads is illegal.

Therefore, before you decide to buy some easily available tools on market, always check the features of that device and the main purpose of it. In case it is illegal, it should have a special description under which conditions you should use the gadget. Nowadays the mileage blocker is the only ethical option for customers and it is recommended not to choose other tempting but unlawful options.

Are miles on a car so important?

We have discussed what is a mileage stopper, but are miles really that important? The number of miles on a car can change our decision to purchase it. According to common belief, higher mileage indicates that it needs more maintenance costs and lower digits on the odometer attract potential buyers. The reason behind it is that low mileage vehicles are considered well-kept and an automobile maintains higher resale value. However, the meaning of higher and lower differ according to where you live and how you drive

Putting a lot of kilometers on a car does not automatically mean that it is not valuable enough. They are meant to be driven not kept in a garage. Hence, do not hesitate if you intend to use your vehicle at your will. Moreover, if you are a cautious driver who does not love to accelerate often, there is a good chance that you don’t put extra strain on your tires, suspension, steering, brakes, and other parts. Therefore, your automobile will be better maintained than other ones owned by someone focusing on unleashing the full potential of his/her vehicles.

So, should you stay away from high Mileage/km cars? The short answer is – no. The most important factor is the condition of the vehicle and not the numbers that are displayed on the dashboard.

Advantages of mileage blockers

Rather than being the only legal option, the system has several unique features as well that make it so special on a market. Since we have already discussed what is the mileage blocker, here are some advantages of this tool that you can use in your car.

  • Premium quality “Plug-And-Play” plugin – As for all the other products that we purchase daily, the quality of the Mileage Stopper is vital. If you wish to have all the features that are necessary for its functioning, you should choose the best one. There are multiple sellers who claim to provide you with high quality but cannot meet your expectations. They also failed to copy the full functionality of the original product. Superkilometerfilter provides premium quality products from Germany. Each product is tested before shipping hence the chances of any unavoidable malfunctioning is almost 0.

  • Do it yourself (DIY) installation – When we think of the Mileage Correction Modules, we imagine an exhausting visit to a technician. This might be true in the case of most of the tools that are available for sale. However, Mileage Blocker Tools come with Do-it-yourself installation instruction and is easy to install. The device from SuperKilometerFilter is OEM original Plug-and-play connector. It simply has to be plugged in between the speedometer and the cable that was previously attached there.

  • Multiple modes to choose from – Mileage Blockers operate in different ways. You will have the option to choose among different modes based on your personal preferences. For instance, depending on the maker and model of your vehicle, you may have options to count only 10%, 20%, or don’t count mileage at all. The last option is quite useful to test your car as it will not add unnecessary mileage.

  • Easy to operate with several key combinations – As you already know what is a mileage stopper and it has multiple modes, you may wonder how you can change these modes in your vehicle. This useful system is much easier than you would imagine. A solely key combination allows you to change from one mode to another. The keys will differ based on the car producer companies. Therefore, you have to check the specific description to know the specific key combinations that you need.

  • Turn ON and OFF the module while in motion – you can change between modes while in motion. A key combination can be applied while your automobile is stationary or in motion. You will be able to set a specific mode that you require during that specific time. When activated, the module will display the notice and you will always know what percent of the distance is recorded.

Which is the best Mileage Blocker?

Mileage stoppers differ significantly from other types of products. However, it is important to realize that there are multiple providers of these modules and not all of them offer the same device. They have different names, sometimes they can have the same name but different functions. So, it is useful to have the exact answer to what is a mileage blocker and what this tool allows you to do with your car. Moreover, always remember that using an inappropriate system can cause you a legal problem.

If you would like to acquire the module with all the features that we have discussed above, it is vital to purchase the Tool from SuperKilometerFilter. Multiple other providers managed to mimic certain features of it. However, only SuperKilometerFilter provides the Mileage blocker modules that give all these capabilities. This is a premium-quality product at the best price available on a market.

Caution: it is prohibited to use mileage stoppers on public roads. Don’t use the tool for deceitful purposes as it is illegal. The main purpose of the module is to test the performance of your vehicle in a controlled environment. The Chassis Dynamometer or any other testing conditions will be appropriate for this module. You can find out more about what is mileage stopper and in case of any further questions, do not hesitate to contact the support team anytime.


As time passes and mileage is becoming more important, car owners want to understand what is a mileage blocker. The article provided appropriate answers about the function and the characteristics of this tool. There are a plethora of modules that deal with odometer correction issues, but there are significant differences among these systems. The mileage Stopper Device offers the best performance and has many advantages that you have already read about above.

This tool will help you with any mileage issues that you might face whether it is related to testing or tire size differences. It doesn’t require too much effort and will enhance your vehicle depending on its age and condition.

Visit the shop to purchase this module for your car. They are available for multiple models. However, if you don’t find your vehicle contact us, we will let you know as soon as the device is available for your automobile.