Do you work out your EXACT mpg?
Discussion
So, who works out their MPG exactly, and do you do it every time, most of the time, sometimes or never?
I have just worked out my last tank was 46.6 mpg, so not too bad (depending on your point of view
), but do many people actually bother to work out their mpg, or in these days of trip computers is it all a bit unnecessary?
It is pretty rare for me to fill up, but a new job has meant a return to the world of commuting and so I will get into the habit again and will continue to do so. I bought an old Opel Monza many years ago, and the old boy I bought it off had recorded every journey he had made in it, and also noted every drop of fuel and worked out the average by tank and also cumulatively.
Any one else that obsessive?
(I would post a poll, but dont seem to be able to!)
I have just worked out my last tank was 46.6 mpg, so not too bad (depending on your point of view
), but do many people actually bother to work out their mpg, or in these days of trip computers is it all a bit unnecessary?It is pretty rare for me to fill up, but a new job has meant a return to the world of commuting and so I will get into the habit again and will continue to do so. I bought an old Opel Monza many years ago, and the old boy I bought it off had recorded every journey he had made in it, and also noted every drop of fuel and worked out the average by tank and also cumulatively.
Any one else that obsessive?
(I would post a poll, but dont seem to be able to!)
Rollcage said:
So, who works out their MPG exactly, and do you do it every time, most of the time, sometimes or never?
I have just worked out my last tank was 46.6 mpg, so not too bad (depending on your point of view ), but do many people actually bother to work out their mpg, or in these days of trip computers is it all a bit unnecessary?
It is pretty rare for me to fill up, but a new job has meant a return to the world of commuting and so I will get into the habit again and will continue to do so. I bought an old Opel Monza many years ago, and the old boy I bought it off had recorded every journey he had made in it, and also noted every drop of fuel and worked out the average by tank and also cumulatively.
Any one else that obsessive?
(I would post a poll, but dont seem to be able to!)
I do it every now and then - you can't rely on trip computers generally. On some cars you can recalibrate them and it's worth checking every now and then if you're bothered about accuracyI have just worked out my last tank was 46.6 mpg, so not too bad (depending on your point of view
), but do many people actually bother to work out their mpg, or in these days of trip computers is it all a bit unnecessary?It is pretty rare for me to fill up, but a new job has meant a return to the world of commuting and so I will get into the habit again and will continue to do so. I bought an old Opel Monza many years ago, and the old boy I bought it off had recorded every journey he had made in it, and also noted every drop of fuel and worked out the average by tank and also cumulatively.
Any one else that obsessive?
(I would post a poll, but dont seem to be able to!)
I calculate my MPG from every tankful.
In fact I have a spreadsheet for each of my previous & current cars which does it for me - including average MPG, total miles etc, average per fill up.
I now use the "RoadTrip" app on my iPhone which is brilliant (I find) for calculation costs, expenses etc.
I think it comes from when I started driving, doing 35-40k per year, and doing 55mpg instead of 45mpg could save me a fair amount of money.
It's a bit obsessive I think, but doesn't stop me
In fact I have a spreadsheet for each of my previous & current cars which does it for me - including average MPG, total miles etc, average per fill up.
I now use the "RoadTrip" app on my iPhone which is brilliant (I find) for calculation costs, expenses etc.
I think it comes from when I started driving, doing 35-40k per year, and doing 55mpg instead of 45mpg could save me a fair amount of money.
It's a bit obsessive I think, but doesn't stop me
On my old car the trip was 100% accurate on the numerous times i worked it out, so didnt bother.
Done it a couple of times in the current car, but cant really be arsed now as i dont care that much, just occasionally reset the trip and see roughly what i`m doing per 1/4 tank, so i`ll notice if it drops a lot due to a fault.
Done it a couple of times in the current car, but cant really be arsed now as i dont care that much, just occasionally reset the trip and see roughly what i`m doing per 1/4 tank, so i`ll notice if it drops a lot due to a fault.
I have had my current car for 15 months and in that time I have done about 13k miles and the computer has always been showing 36.2 (IIRC) and I did a check for the first time on the last tankful of 75/25 motorway/town ratio and I did 42.8
I was quite pleased as the motorway driving was usually over normal leptons I can drive econonically if I want to but I soon get bored after a while.
I was quite pleased as the motorway driving was usually over normal leptons
I can drive econonically if I want to but I soon get bored after a while.My car doesn't have a trip computer so if I want to know the MPG I work it out manually. The fuel gauge is also so rubbish that I tend to reset the trip odometer every fill up as a backup which means I pretty much automatically work out the fuel consumption every time I fill up.
Every car that I've ever had with an economy readout has actually been pessimistic rather than optimistic, although that is only a sample of two.
Every car that I've ever had with an economy readout has actually been pessimistic rather than optimistic, although that is only a sample of two.
Edited by kambites on Friday 26th March 08:13
rfn said:
I calculate my MPG from every tankful.
In fact I have a spreadsheet for each of my previous & current cars which does it for me - including average MPG, total miles etc, average per fill up.
I now use the "RoadTrip" app on my iPhone which is brilliant (I find) for calculation costs, expenses etc.
I think it comes from when I started driving, doing 35-40k per year, and doing 55mpg instead of 45mpg could save me a fair amount of money.
It's a bit obsessive I think, but doesn't stop me
In fact I have a spreadsheet for each of my previous & current cars which does it for me - including average MPG, total miles etc, average per fill up.
I now use the "RoadTrip" app on my iPhone which is brilliant (I find) for calculation costs, expenses etc.
I think it comes from when I started driving, doing 35-40k per year, and doing 55mpg instead of 45mpg could save me a fair amount of money.
It's a bit obsessive I think, but doesn't stop me
I use http://www.fuelly.com/ to work it out for me. Nothing you can't do with a spreadsheet, but you can compare the mpg of other similar cars which can be interesting (if you like that sort of thing!)
Pints said:
james_tigerwoods said:
rfn said:
In fact I have a spreadsheet
Me too. Have done for years....55mpg on a VW TDi? b
ks....
Oh yes - 55mpg from a VW TDi - b
ks here too 
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