I wouldn't drive any slower to get better MPG.
If you want economy buy a diesel.
Wtf! That seems well lowOver the last 1500 miles or so my trip computer is showing 31.7mpg.
Lol at people using cruise control for fuel economy. It opens and closes the throttle depending on speed, to keep you at a constant, not saving fuel.
For fuel economy you want to be using your foot, and no more than 10mm of travel on the accelerator pedal. You'll go slow up the hills, and speed up down hills, but retain good mpg figures.
....and medici please do not send me any PMs about fuel economy.
I wouldn't drive any slower to get better MPG.
If you want economy buy a diesel.
This TBH, I never get more than 27/28mpg, I tried driving like a homo for a whole day once and managed 35.9, but you'd think I'd od'd on roids by the time I got home, was almost biting lumps out of the steering wheel.
This, i get about 36mpg on average over the last 1195 miles
Wow i'm goinng to be quids in when i purchase a 172! I currently get 20/22 from my mx-5