well the DIS,is only based on 45 miles back from Elgin.
Topped it up in Asda in Elgin and drove back 45-50-55
and a wee spurt on the overtaking lane past Brodie country fayre.
It was as high as 77.8.
It was a warm day 19° in Buckie and Engine was warm with only putting the climate on to chill down and then back off again.
I always Brim to brim fill so I divide the miles by the litres then *4.56=
I've just put two tots of millers in as I found it in the garage again,so will report once I top up again.
Normally I only drive from town to the airport its about 7 miles and not driving daft I can get 55 average,driving thru the gears like a petrol car it can fall to 47,this is at 5'ish in the morning so its cold or dinnertime if Im on backshift.
Car has just been serviced too so this may help its case as well.
I was going to get Shell Petrol but its back upto 99.9 where as Elgin was 96.9
Looking forward to getting cruise fitted to see if it helps or hinders mpg.