Thanks wvw
Though I can't argue with DTDog's calculator. Very neat!
I usually expect 600 to 650 miles from a tank. Takes about £120 to fill up at £1.40 a litre. 90 litre tank at about 35mpg. Effectively about 18 gallons useable. 18gallons x 35mpg = 630miles. Sometimes it is less than 600 though, if a lot of town driving.
That's about 20p a mile. Not bad for a 2.5litre diesel. But I only got 32mpg on my Scotland trip.