About my fuel consumption. Not so much whether it's good or bad, jsut WHAT it is...
I blame this on my dad, who I always saw filling in his little book every time he put petrol in his car - mileage, fuel used, price etc...
As a son who has always looked up to his father, it was natural for me to start doing the same thing when I got my first car in 2001 at age 19. And I've been doing so ever since - I've still go the same book...
However, as you'd expect in the modern age, this soon started to transfer onto a spreadsheet, when Mr Bill Gates can fill out and calculate all sorts of interesting facts and figures and make various graphs and tables up of exactly what my car is doing...
Most of this is utterly useless - I just like figures...
The most important one for me is the pence per mile figure - a calculation which takes the cost of the fuel and the economy into account to tell me exactly how much every mile is costing me in jsut fuel alone. This is more useful to me than the official PPM figures, which include running costs and depreciation...
It also allows me to roughly calculate what a journey might cost me - ie 400 miles home at 10p per mile = 40 squid... useful for deciding whether to take the train/fly/boat/cycle/walk/not bother going at all...
Having just started using Millars V-Sport (or whatever it is...) things seem to be on the rise a little, so i thought I'd post the results from my spreadsheet off all the cars I've owned for comparison. Given that when I first started driving I've got entries for 68p a litre for petrol and 1.38 for diesel from last year, it's interesting to see what happens...
Most recent tank from my 2005 Vectra 1.9 CDTi 150 with 85K:
662 miles - 61.22 litres - 13.45 gallons - 49.15 mpg
Average figures for my ownership of the car:
Total mileage: 26873
Average MPG: 46.71
Total Fuel Cost: £2891.68
Average PPM: 10p
These also allow me to compare the actual figures with the ones thrown up by the computer, and in general it's about 3 mpg out - although there are errors in my own calculations, like not filling it to the exact same point every time. but it's gives a rough guide on how it's doing...
My first car, 1992 Nissan Micra 1.0L 4 speed with 77K
Total mileage: 22495
Average MPG: 38.9
Total Fuel Cost: £1906.64
Average PPM: 8p
1996 Vectra 1.8 LS with 98K
Total mileage: 7983
Average MPG: 36.26
Total Fuel Cost: £743.83
Average PPM: 9p
1997 Vectra 1.8 Arctic 144K
Total mileage: 8891
Average MPG: 35.44
Total Fuel Cost: £898.91
Average PPM: 11p
1998 Vectra 1.8 Arctic with 85K
Total mileage: 12147
Average MPG: 36.89
Total Fuel Cost: £1293.84
Average PPM: 12p
2002 Vectra CDX 2.2DTi with 79K
Total mileage: 17210
Average MPG: 42.91
Total Fuel Cost: £1722.26
Average PPM: 10p
2006 Signum Elite 2.2 Direct with 10K
Total mileage: 5264
Average MPG: 32.06
Total Fuel Cost: £594.51
Average PPM: 13p
Some of them have been owned at the same time as others, and reasons for changing them have varied from being too expensive to run and pay for at the same time, crashing, fancying a change etc... Some changes have proved good ideas, others not so good, but all have been learned from in one way or another.
Have now owned my Vectra for longer and further than any other of my cars, and depending on what happens in the next 6 months or so I'd love another Signum...
On another interesting note, at one point last year, when fuel was at it's highest, my 1.9 cost the same PER MILE in fuel to run as my 2.2 Direct Signum - which is an eye-opener and a half...
Anyway, anyone who still doens't think I'm a needs their eyes checked...