With a following east wind on the way from London to Dorset at the weekend, my 1.9 TDI managed 68.5 mpg average (previous record 60.5 mpg from Birmingam NEC to London with light traffic).

On the way back it managed 50.3 - although the wind was reduced a little it was still blustery and head on.

Still, an average of 59.4 is pretty darn good considering the conditions (250 miles of mixed motorway, A roads, B roads and town driving). It really brought it home how much wind resistance affects economy.

Steve

You must have been driving like a Saint to get those figs. top work.

Mine over the last 10,000 miles has avaraged 47mpg brim to brim method, highest i have ever got was 55mpg and that was hard work

You must have been driving like a Saint to get those figs. top work.

Mine over the last 10,000 miles has avaraged 47mpg brim to brim method, highest i have ever got was 55mpg and that was hard work

I wasnt going any slower than the traffic flow, plus some swfit overtaking. I normally average 52mpg on the motorway and a bit more if there are lots of 50MPH restrictions. A bit less in bad weather or if I decide to set cruise a little higher...

anyone checked the accuracy of the electronic trip computer fuel economy readout? Mine's about 10 per cent optimistic.

anyone checked the accuracy of the electronic trip computer fuel economy readout? Mine's about 10 per cent optimistic.

Mine's always optimistic according to Spritmonitor

35.1 / 36.9

34.7 / 37.8

38.0 / 38.7

38.9 / 40.6

36.8 / 37.0

That's in a 1.4l petrol Roomster 2 on a mix of local pottering about interspersed with a few motorway trips

I had an iPhone app called Gas Buddy I think, it worked out the consuption per tankful and over a longer period. I found it always agreed with the car to within about a decimal point.

I had an iPhone app called Gas Buddy I think, it worked out the consuption per tankful and over a longer period. I found it always agreed with the car to within about a decimal point.

Mines accurate if I do a lot of motorway driving. It seems to get confused when I do a lot of local short trips and it gets a bit more optimistic.

Mine's around 10% optimistic compared with brim-to-brim calculation

Mines accurate if I do a lot of motorway driving. It seems to get confused when I do a lot of local short trips and it gets a bit more optimistic.

I live in Guernsey so all I do is short journeys but it's still near 100% accurate.