Lzydocker, yup that's the average I get on LPG, or around 33-34 Mpg on petrol. I really only drive on motorways, though I always sit on the M6 in the afternoon, going nowhere fast! and a few trips round town at weekends, so others may get a bit less. Motorway only over a 212 mile run (my daily commute round trip) I use 34 to 34.5 litres of LPG. Cruise set to not upset plod and best economy seems to be around 73mph indicated. I also always use climate control and all electrics to suit, doesn't seem to make the slightest difference.
Petrol at my Shell garage is 102.9p for 95 octane and LPG 52.9p, but I also fill up in Telford at Countrywide at 50.8p so equivalent cost consumption is 102.9/52.9x27.5=53.5mpg (rounded worst case) and 102.9/50.8x27.5=55.7mpg (rounded best case)
VW1.9TD territory, but with all the good stuff you get in the Mig. I am a happy man. (as soon as I cure the chuffin misfire which I am beginning to think is an air leak at no6 manifold stub or plenum seal, still only when cold and only for a few seconds, so I can live with it for now. And the fuel figures are with this malady!!)
Cheers
Paul