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There are hundreds of urban myth about DPF's but one simple fact is it will not carry out a regen until the ECU intructs it to. Unless a regen is due all regular runs will achieve is to waste fuel and your time.
The best urban myth is to drive at 70 mph in 3rd for 1/2 an hour to blow the soot out. All that does is wastes fuel and deafens you. The soot is bonded to the dpf and need s regen to shift it, if it simply blew it out there would be no point having a dpf.
If your usage suits a dpf equipped car you have nothing to worry about, just carry on driving normally.
If your usage does not suit a dpf equipped car sell it and buy a more suitable petrol.
FYI our Kia ceed had a recomendation to keep the revs between 1600 and 2000 during a regen. 70 mph was about 2200 rpm so when we first got the car and spotted a regen was taking place we simply continued at 70 mph if we were on a dual carriageway/motorway. But we spotted that reducing speed/revs made a regen last a shorter time and the fuel computer recorded a a much better mpg during the regen, basically Kia know a bit about their cars.
What do VW recommend.
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