I have the B-Tool app for my 330d with a V-Link Bluetooth ODB2 adapter as out of curiosity wanted to see what goes on regarding regeneration as I always use additives in the diesel fuel so wanted to see if they actually work.

I use the oilem hybrogen at the moment (have used Archoil and Hydra products to but not tested those through the app yet).

I always use tesco diesel as its the cheapest near me so used this with the hybrogen.

I do long runs every week (Anglesey and back around 145miles each way with mainly A roads and about 30ish miles of dual carriageway).

Having monitored the dpf cycle, i managed to get 315 miles before it regenerated.

On my next fill up, I decided to try the tesco version of the Vpower diesel to see if this makes any difference (with hybrogen).

Having driven back last Friday afternoon and having the app monitoring the whole way I can confirm the mileage since the last regeneration is way higher at 450miles (and still climbing) which could be a good indication that the premium diesel does actually make a difference. Must stress all driving habits are the same on each test, eco mode 99% of the journey with the odd flick into comfort for an overtake. Any others undertaken similar tests? The proof seems to be there that the premium diesel is cleaner.