Dragon digital box

With regard mpg with/without a dragon box our current figures for both our furbies are remarkably similar.....

My car which has the dragon box fitted (on setting 7 of 7) is currently, as can be seen from my sig, running @ 40.6mpg

The mrs' car which doesn't have the dragon box fitted is currently running @ 40.5mpg.

Now before anyone says something about one being driven differently by another person etc...... we use both cars equally as much as the other..... i.e. i use my car as much as i use the mrs' and she uses my car as much as hers. It's usually a case of whichever one is on top of the drive etc.....

Both cars have had the same amount of fuelings using the calculator and both get two measures of Millers sport IV with each fill up as well.

Anyhow that's my input.

Cheers

Dave.