Mark IS220d

Due to the ever increasing cost of fuel I have made some interesting comparisons that I'd like to share with you that compares the average cost of fuel per year over 12000 miles. To calculate I have used the following base data to calculate the difference. IS250 avg MPG 39 (based on previous forum posting) at a price of £1.169 per litre would use 307.69 gallons a year at a cost of £1635.16 IS220d avg MPG 44 (based on my own car) at a price of £1.309 per litre would use 272.73 gallons per year at a cost of £1622.92 A difference of only £12.24 Think it is safe to say that I will be going for the petrol next time as the gap between the 250 and 220d only needs to increase by 1p a litre and it will become cheaper to run a petrol car than a diesel Thanks Mark

I have had my 220d since June this year and it has now done 4.5 k. I have just driven from Penzance to Leeds at 75mph on cruise control, 6th gear (1400 revs) & a/c on, virtually the whole distance averaging 62 mph over the journey. The tank average for this journey was 53.5 mpg. I had no problem with acceleration or anything else, this 410 mile journey was a dream to drive in 6:45, it was so smooth and comfortable I felt that I could have got back in the car and driven back to Penzance and still not felt tired on my arrival. On the whole drive only saw another 2 x IS cars underlining it's status as a car that is still relatively rare and noticeable on the road From new the car is averaging 41.7 mpg and I do a mixture of town and motorway driving. As far as I am aware the car has had no mods so why do I appear to be achieving a much higher than average mpg than most other drivers?