I have an Opel Grandland diesel (it's the same as the Peugeot 3008 mechanically) and it showed a problem with the catalyst. I read the fault code with OBD and it referred to the Ad Blue system. After overcoming the panic crisis from the 2000 euros I was reading for repairs, I calmly started to investigate. A friend recommended this TOTAL product to me, and after I used it, along with a supplement from Wynn's and driving some kilometers on the highway, it seems that the crystals formed by the dried Ad Blue dissolved and the fault cleared up! Phew!!!!

Initially, the product is intended for vehicles with SCR and not EGR systems. Both systems require a DPF particle filter and aim to make Diesel vehicles cleaner... but they have different operating methods, slightly different maintenance products, and certainly different damage outputs. Comparatively, proven and tested by me, with equivalent (and branded) products on the market, this particular one leaves fewer residues (crystallizations). Clearly, it is not the most economical on the market (but neither the most expensive). It is recommended by the Stelantis group due to Total's close collaboration with the PSA Group. It carries and displays the necessary certifications. I have been using it continuously in PSA passenger cars for at least three years, and they have not presented any problems.