Improve Performance – Or Your Money Back

Dyno Challenge Guarantee

If you choose to independently dyno test your vehicle before and after using Lofrix and no measurable improvement is shown, we'll refund the product.

At Lofrix, our goal is simple: reduce engine friction, improve efficiency and performance, lower emissions, and help reduce running costs.

We are confident in our technology. If Lofrix does not improve your vehicle's performance, we'll refund the purchase price (excluding shipping and a £5 packaging fee), provided the conditions below are met.

In testing, we recorded measurable improvements after using Lofrix:

• Engine Power: +1.12%
• Engine Torque: +2.15%
• Wheel Power: +2.70%

These results were achieved on an already highly efficient production vehicle, demonstrating that even modern engines can benefit from reduced friction.

Other testing of Lofrix in vehicles can be found here

Refund Requirements

To qualify for a refund, please provide:

1. Independent Dyno Results

A before-and-after dyno test carried out by the same dyno operator.

• The before test must be completed prior to adding Lofrix.
• The after test must be completed after the qualifying period.
• Results must include the dyno operator's details.
• A copy of both dyno test results must be emailed directly to the nominated email address provided by Lofrix.
• All results must be submitted in their original, unaltered format.

2. Correct Application

Lofrix must be added exactly as instructed.

• Dosage must be 1–2% of the engine oil capacity.
• Incorrect dosage or application may invalidate the guarantee.

3. Usage Period

The product must have been in use for:

• At least 7 days, and
• At least 200 miles (320 km) of driving.

Please provide a photograph of the odometer showing the mileage before and after.

Please note: Lofrix requires time in service to form its protective layer on metal surfaces. The longer it remains in use, the greater the opportunity for full surface coverage and treatment.

4. Vehicle Condition

The vehicle must be mechanically sound.

The guarantee does not apply to vehicles with known engine faults, warning lights relating to engine performance, excessive oil contamination, or other mechanical issues that could influence dyno results.

5. Same Test Conditions

Both dyno tests should be carried out:

• On the same dyno.
• Using the same fuel type, E5.
• Under similar ambient conditions where reasonably possible.
• Without any other engine modifications between tests.

Additional conditions

• The refund applies up to one 50ml bottle per vehicle.
• Claims must be submitted within 30 days of purchase.
• Proof of purchase is required.
• The bottle must not be diluted or mixed with other oil additives.
• Lofrix reserves the right to verify submitted documentation.
• Refund covers the product price only (excluding fitting costs, dyno fees, shipping, taxes where applicable, and the stated packaging fee).

To assist with claim assessment and provide an enhanced customer service experience, customers are encouraged to record the application and testing process. Submission of video footage is optional but may help expedite the review of a claim.

How to Proceed with a Claim

At Lofrix, our highest priorities are product quality and customer satisfaction. We are proud that our products are manufactured in the UK, and we are committed to providing excellent customer service.

To submit a claim, please contact us via our Contact Us page using the subject line "Improve Performance – Or Your Money Back" and include your order number in the format #LOFRIX0000(2026).

Please allow up to 48–72 hours for a response. While we aim to answer all enquiries as quickly as possible, often on the same day, all emails are reviewed and responded to manually.

Once we receive your claim, we will respond as soon as possible and explain the next steps in the process.

To avoid delays, please ensure that you have all relevant information available and that you have met the conditions of the guarantee, as incomplete information or unmet requirements may affect the processing of your claim.