ok for MOT

I put the product when my tank was empty half. (So ​​about 25 l in the tank). Then I complete with 5 liters of diesel at the gas station. I drove until the gauge diesel no longer displays as "traits", the last displayed autonomy was 19 miles (30 km) to empty. And I went kindly to the nearest station to refuel. The next day I went to the technical inspection and it was ok. More black smoke. I still made a lot of ring road at 90 km / h in 4th or 2700 rev / min. I am satisfied. this product does its job.