how much do you reckon you spend on fuel a month?
pp, serious question, how do you know the trip distance is right? if i look at speedo and a gps the two give differing speeds, i would suspect the distances differ as well.
I know the milage is not 100% accurate. It’s taken from the same sensor as the speed, and pretty much every car in the world over reads on speed, so the milage will be OTT as well by the same amount.
But that can’t be changed. It’s the most accurate reading available.
But no. I don’t trust fuel computers because I’ve got 17,000 miles worth of data that proves the car one over reads. And now 1400 miles of data that proves the bike one under reads!
What people generally quote is the odd trip computer reading that they can remember…. (One that makes their car sound good???)Posted 6 years ago
And they don’t realise it varies. They don’t know how fuel consumption changes with different factors, because they’ve not been keeping records for hundreds of thousands of miles for 21 years in god knows how many different vehicles (not all cars) like I have. I admit I am an EPIC fuel geek. But as such I really do know what I’m on about. It’s not bullshit. 🙂jamesoSubscriber
I got pi55ed off with driving a long time ago and changed a few things in life that enabled me to be car-free, for now.
£100 or so on train fares, sometimes £150-200 inc the odd cab. Now I’m used to it i’d happily spend more on public transport than the fuel + running cost value to avoid driving wherever possible. It’s no longer about saving money. Can’t imagine it lasting forever in reality, but i hope so.Posted 6 years agotimberMember
Currently, about £200 for me and the GF has a works van and about £40 into the fun car.
When the van goes back next month though, looking at £300 for the GF in my car (as it is the more economical for the longer drive) and I will get the fun car at about £100 then add another £75-100 for non-work stuff.
Would be lovely to spend less time driving to work, but jobs are where they are and we are where we can afford to live. We could live closer to where my GF works, but she would rather come home to where we are in the countryside.Posted 6 years agopetrieboyMember
2 tanks in the commuter and maybe half in the family car, more if we’re away but then less n the commuter, so probably £250/month
Re trip computer haters: are you guys using the forecourt fuel pump and car odometer for your figures? Obviously the mileage is going to be higher than true whatever you do but isn’t it as likely that you are shortchanged by the pump as it’s likely all car manufacturers are going out of their way to build in inaccuracy to their systems?Posted 6 years ago
Fuel pump dispences 70litres in about a minute whereas the car injects fuel with almost atomic accuracy.
if i look at speedo and a gps the two give differing speeds, i would suspect the distances differ as well.
Don’t trust the GPS, there are several things that can lead to GPS distances being inaccurate. I would think it is only recording cartesian distance, thus not taking surface or terrain into account, or if it does use terrain data it’ll only be SRTM or something low resolution. Also if it loses signal it’ll create error, and simply projecting from WGS84 to create the distance values could be introducing a lot of error over longer distances, depending how they are doing things. Garmin don’t release information about the transformation parameters they use to convert from WGS84 so its hard to verify the accuracy.Posted 6 years ago
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