Just been doing some maths.
Assuming that V8's return an average of 14 mpg and diesels 28 mpg
When Diesel costs £1.08 more a litre than pertol then we may all as well run V8's :-)
in todays terms that meand petrol at say £1.08 a litre and Diesel at ....wait for it..... £9.82 per litre. :-(
I feel better now having just put £98 of Derv in the Rangie!
All calcs on a cost per mile purely on fuel alone.