is the fuel injected?
i was toying with me
sg2 and found out that in 5th at 60mph puchin about 2100rpm on flat ground i was gettin 33mpg, then i down shifted to 3rd and it ran up to arun 4500 rpm and with foot control i got 32.5mpg, but minute movements of the foot had great loos of mpg as apposed to the 5th gear.