39.9mpg!
 

I use my 80CL for work, a 100 mile a day commute (until I get the 100 quattro back on the road). I fill up with petrol every 3 days, and drive down the A4 between Calne and Newbury, so it is quite a fast road, with a few opportunities for overtaking, and I keep to the speed limit (of course, officer) ish.....

Then there is a section of A34, then some B roads for 10 miles.

When overtaking I am using 3rd gear at 50, and putting my foot right down so both butterflies on the Weber are open.

And I got 39.9mpg on my last tank of petrol!!!!! Unheard of.

Well happy!

not bad... but you would get more at 50 in 4th;);)

your getting a bit more than me though:o:o

I haven't got a rev counter, just a huuuuuuuuuuuuge clock. So 3rd is good from 50-70 for most overtaking, it is a Coupe gearbox, so I think 4th and 5th are longer than a 80 Sport gearbox

could you tell me how to convert from litres/100kilometers onto milesfromgallon?? My dashboard is european and I've got km's on the clock, but I wonder how many miles I can do on one gallon- british gallon.... :P

1 gallon [UK] = 4.546 09 litre

1 kilometer = 0.621 371 192 24 mile [statute]

did 320 miles this week in 3 days.

Average of 44mpg!!!!!!!!!

i wish the s4 was doing this i am getting about 23 to a gallon bad ,not as bad as the tr8 which was good 18 brain out 9miles to a gallon

I wish my 80 went as fast as your S4!!!

Swings and roundabouts

Thats about what my 1800 coupe does ,you can get a little bit more if you don't keep the tank full

I managed 17 to the gallon in my CQ once, boy was it fun, 42 miles in 41 mins from barrow to lancaster