While we are off topic, tonight I got my best ever MPG on a short run that I do at least once a week.

 

Cold start, 4 miles outward journey.

 

Return a couple of hours later so another cold start and 4 mile journey, well not so cold here in September!

 

I got caught by the traffic lights on both journeys.

 

Overall  was 61.5 mpg which is pretty amazing for a non slippery brick with 4wd transmission!

 

I was up to 54 mpg on arrival at destination after 4 miles.

 

My best ever before was 57.something probably with green lights both ways.

 

I was probably driving a little slower the road has been planed for resurfacing and had no markings and I see my opthalmo tomorrow, perhaps my night vision is not as good, hardly any traffic as always.

Edited 4 September, 20241 yr by J.R.

Fuel consumption is linked to number of regeneration of the dpf and the quality of the fuel

*UPDATE*

 

I got myself the VAG DPF app and a dongle and it turns out the DPF is regenerating a lot, it did it 3 time in a 120 mile journey last night, i screen recorded the app on my phone so i could look back at it and the soot mass measured is climbing really quickly, it went from 7 to 23 grams in 20 minutes, also the the differential pressure would occasionally jump from 50ish hPa to 100-170 hPa for a few seconds while not regenerating, with my limited knowledge i would expect the differential pressure to rise at a steady rate as DPF fills, could a faulty sensor cause the soot reading to be incorrect and make it regen when it doesn't really need to?

Edited 9 September, 20241 yr by Dan77