What is a Mileage Blocker?

A Mileage Blocker is a device designed to stop the odometer from recording mileage during vehicle testing. This tool ensures that no additional mileage is logged while performing diagnostics, making it essential for accurate testing without affecting the car's recorded mileage.

How does a Mileage Blocker work?

A Mileage Blocker works by temporarily interrupting the signal between the vehicle's speed sensors and the odometer, effectively freezing the mileage count. This allows you to conduct performance tests without adding extra miles to the odometer.

Is the Mileage Blocker easy to install?

Yes, Mileage Blockers are designed for easy installation. They feature a plug-and-play system that requires no special tools or technical expertise, allowing you to install the device in minutes.

Can a Mileage Blocker be detected during a vehicle inspection?

No, a properly installed Mileage Blocker is undetectable during routine vehicle inspections. It operates without leaving any traces, ensuring that the vehicle's original mileage remains unaffected.

Is the Mileage Blocker compatible with all vehicle models?

Mileage Blockers from Dynotest are compatible with a wide range of vehicle models. We offer specific versions of the device tailored to different car brands and models, ensuring seamless integration with your vehicle's electronics.

Why should I use a Mileage Blocker during vehicle testing?

Using a Mileage Blocker during vehicle testing prevents unnecessary mileage from being added to your car. This is crucial for maintaining accurate mileage records, especially for professionals in the automotive industry who require precise data for diagnostics and performance tuning.

Will using a Mileage Blocker affect my car’s performance?

No, using a Mileage Blocker will not affect your car’s performance. The device only pauses the odometer, ensuring that no mileage is recorded during tests without interfering with the vehicle’s functionality.

Can I use the Mileage Blocker for long-term use?

Mileage Blockers are intended for temporary use during specific testing and diagnostic procedures. It is important to deactivate the device after testing to resume normal mileage recording.

Do Mileage Blockers comply with legal regulations?

The legality of Mileage Blockers varies by jurisdiction. They are typically intended for off-road testing and diagnostics only. It is essential to check local laws and regulations before using the device on public roads.

Where can I buy a Mileage Blocker?

You can purchase a Mileage Blocker directly from Dynotest's official website - dynotestpro.com. We offer worldwide shipping, including to regions like Europe, USA, and beyond. Visit our Product Catalog for more details.

Responsible & Lawful Use Policy

Last Updated: July 6, 2026

At DynoTestPro, we are committed to providing professional-grade diagnostic and testing solutions. Our tools are engineered exclusively for automotive professionals, engineering researchers, and performance enthusiasts.

By purchasing, accessing, or using our products, you explicitly agree to the following Responsible & Lawful Use Policy. Failure to adhere to these terms may result in the immediate termination of your access and potential legal consequences.

1. Intended Use and Professional Scope

Our products are intended strictly for controlled testing, diagnostic, and research purposes.

Professional Use Cases: These tools should only be used by qualified automotive technicians, research laboratories, or automotive engineering professionals.
Environment: Testing must occur exclusively in controlled, off-road environments (e.g., closed circuits, dyno cells, or private workshops).
Prohibition of Public Road Use: Our equipment is not designed, approved, or intended for use on public roads. Any usage that affects vehicle performance or reporting while in transit on public highways is strictly prohibited.

2. Odometer Integrity and Legal Compliance

We maintain a zero-tolerance policy regarding odometer tampering or mileage fraud.

Legal Responsibility: Users must comply with all applicable local, national, and international laws, including the Road Traffic Act and consumer protection regulations (such as the UK Consumer Rights Act).
Mileage Fraud Disclaimer: Tampering with, altering, or misrepresenting a vehicle’s odometer reading is a serious criminal offense in many jurisdictions. It is illegal to provide false information regarding the mileage of a vehicle, particularly when it misleads a buyer or insurer.
Odometer Fraud: You agree that you will not use our technology to manipulate, reset, or misrepresent mileage data to deceive any party.

3. Commercial and Ethical Conduct

To protect the integrity of the automotive market, you agree to the following restrictions:

No Resale Deception: You may not use our technology to alter vehicle data with the intent to misrepresent a vehicle’s history or condition during a sale or transfer of ownership. Failure to disclose known mileage discrepancies is a breach of both ethics and consumer law.
No Fraudulent Avoidance: You are prohibited from using our products to circumvent lease agreement terms, avoid mileage-based service requirements, or fraudulently reduce insurance premiums.

4. Warranty and Manufacturer Compliance

Manufacturer Warning: Be advised that using third-party diagnostic or modification tools may void your vehicle’s factory warranty. Always check your manufacturer’s guidelines before connecting external testing equipment.
User Liability: DynoTestPro is not responsible for any damage to vehicle electronics, control units, or mechanical components resulting from improper use of our tools. Users assume all liability for modifications performed on their vehicles.

5. Compliance Enforcement

We reserve the right to monitor the use of our software/hardware to the extent permitted by law. If we become aware of, or have reasonable cause to suspect, that our products are being used for fraudulent activities—including but not limited to odometer tampering—we will cooperate fully with law enforcement authorities and provide any necessary data to assist in investigations.

Confirmation of Acceptance: By using DynoTestPro products, you confirm that you are a professional user and that you understand the legal gravity of odometer and vehicle data integrity. You acknowledge that you alone are responsible for your actions and for ensuring that all modifications and diagnostic procedures comply with the laws of your jurisdiction.