Thanks Most Easterly that makes me feel better - thats the advice I had before buying but you can't help being a bit jealous of the extra mpg's.......and the low tax.
Tbh I doubt you'll have been getting better MPGs in a diesel, I suspect you'd actually getting worse MPG in the winter with your usage patern in comparison with a petrol as you'll never fully warm up and diesels from experience a bloody awful on fuel on local and short journeys when not upto full operating temperature.