I have never had a problem with the DPF because I mainly drive on open roads and the car performs active regenerations whenever it should, as it should. I added it because of a vacation trip with driving on the highway, just for maintenance. Loyal to Liqui Moly products such as engine flush, Ceratec and other additives.

Excellent product. It does exactly what it promises. It cleans the DPF when I use the car mostly in the city. With improvement both in fuel consumption and throttle response.

It was installed in a 308 of 16, 1600 bluehdi... it worked immediately and helped to clean the filter at short distances and low revs within the city...

The product comes without the appropriate funnel for insertion into the tank. Be careful to take the smallest amount! Other than that, it seems to work on PEUGEOT 207 2.4 DIESEL. After 2 months, the light is off.

The product is excellent. After continuous regenerations in the DPF, especially in city conditions, and immediately after using it (half a bottle in a full tank), the car performs perfectly with the engine functioning like new. I recommend it to everyone who drives long distances in the city, which makes the DPF regeneration process difficult. I use it in 3 cars with TDI engines (1.6 & 2.0).

It is the same as the small packaging.
At a much better price, of course.
It does a great job, I can tell from lower consumption and less fuel returns in the oil.