Hi Pete,
Yes your absolutely right. I’ve been private messaging Ratty as I had found some threads of his with the same issue.
He said that he replaced the the DPF sensor which didn’t have any affect. It sounds
Like he’s learnt to live with the poor consumption.
I’m running 20inch wheels, but don’t carry a lot of weight either really.
Didn’t get a chance to ring VW today but will tomorrow
I lost 20% on fuel economy swapping from standard 16’ wheels to 20’.
I have now settled on 18s for optimum style/economy
Driving anything above 60mph (gps speed) will horrendously dent your fuel economy. I normally set cruise control to 62mph. Just returned 42mpg on a 130 mile run holding 62mph on 18 inch wheels
Wind direction also makes a big difference! Fighting a strong head wind can also dent your economy by a further ~20% in these boxy vans