You should be able to get 300-330 miles out of a tankful with either a 1.5.or 1.7 if not driven too enthusiastically.
The tank holds nearly 50 litres so if you are spending £30 on a fill up there are another 20 litres left.
Aha !!!! Hang on a second here mate ! This is the same question I have re my Sud ! I never could put 50 liters in it.
with the fuel warning light on, the best I could do with filling it up , was about 30 Euro - which is raughly about 30 liters
I asked around, thinking that there might have been a smaller tank version for the Sud , but no one ever heard of such a thing
My tank is a bit banged on the underside, but not so banged that it wouldnt hold an extra 20 litres
Regarding the miles per tank, sorry guys but my odometer never worked so I dont really know
- back to you Melv
My Sprint does about 280 miles per tank - but I drive it very hard
my 33 did 520khm's
with one tank of fuel but a lot of that was covered in a highway